Zeitschriftenartikel: „PANORAMIC AREA“

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Zhang, S., J. Wu, Y. Zhang, X. Zhang, Z. Xin und J. Liu. „LOCATION DISTRIBUTION OPTIMIZATION OF PHOTOGRAPHING SITES FOR INDOOR PANORAMA MODELING“. ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-2/W4 (14.09.2017): 431–38. http://dx.doi.org/10.5194/isprs-annals-iv-2-w4-431-2017.

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Generally, panoramas image modeling is costly and time-consuming because of photographing continuously to capture enough photos along the routes, especially in complicated indoor environment. Thus, difficulty follows for a wider applications of panoramic image modeling for business. It is indispensable to make a feasible arrangement of panorama sites locations because the locations influence the clarity, coverage and the amount of panoramic images under the condition of certain device. This paper is aim to propose a standard procedure to generate the specific location and total amount of panorama sites in indoor panoramas modeling. Firstly, establish the functional relationship between one panorama site and its objectives. Then, apply the relationship to panorama sites network. We propose the Distance Clarity function (FC and Fe) manifesting the mathematical relationship between panoramas and objectives distance or obstacle distance. The Distance Buffer function (FB) is modified from traditional buffer method to generate the coverage of panorama site. Secondly, transverse every point in possible area to locate possible panorama site, calculate the clarity and coverage synthetically. Finally select as little points as possible to satiate clarity requirement preferentially and then the coverage requirement. In the experiments, detailed parameters of camera lens are given. Still, more experiments parameters need trying out given that relationship between clarity and distance is device dependent. In short, through the function FC, Fe and FB, locations of panorama sites can be generated automatically and accurately.

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Poppe, B., H. K. Looe, A. Pfaffenberger, N. Chofor, F. Eenboom, M. Sering, A. Rühmann, A. Poplawski und K. Willborn. „Dose-area product measurements in panoramic dental radiology“. Radiation Protection Dosimetry 123, Nr. 1 (12.08.2006): 131–34. http://dx.doi.org/10.1093/rpd/ncl090.

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Dalla-Bona, Reni Raymundo, Vania Fontanella und Aderson Gegler. „Estudo comparativo entre diagnósticos radiográficos obtidos pelas técnicas interproximal e panorâmica“. Revista da Faculdade de Odontologia de Porto Alegre 40, Nr. 2 (28.10.2021): 55–65. http://dx.doi.org/10.22456/2177-0018.110991.

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Our pourpose was to compare the radiographic diagnostics observed in bitewing and panoramic techniques in a sample of 50 adult patients' x-rays, examined by the same observer. On the panoramic it was analyzed the area corresponding bitewings, looking for coincident diagnostics. Furthermore it was evaluated the additional information supplied by panoramic technique. The proportion of coincident diagnostics in panoramic and bitewings was significantly larger suggesting no differences between bitewings and panoramic as a diagnostic resource. When analyzing the area not inclued by bitewings on the panoramic it was found 3,72 diagnostics per patient that would request treatment or follow-up.

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Shinde, Yugandhar, Kyeongsuk Lee, Beyza Kiper, Makayla Simpson und Sogand Hasanzadeh. „A Systematic Literature Review on 360° Panoramic Applications in Architecture, Engineering, and Construction (AEC) Industry“. Journal of Information Technology in Construction 28 (25.08.2023): 405–37. http://dx.doi.org/10.36680/j.itcon.2023.021.

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While the advancement of visualization technologies—virtual-reality, augmented-reality, mixed-reality, and extended reality—has long produced opportunities to create more realistic simulated environments to provoke and study natural human behavior, recent interest in applying 360° panoramic visualizations has been increasing across several disciplines due to these technologies’ lower costs, higher presence, and greater immersive-ness. However, the variety of applications of 360° panoramas (both images and videos) is limited in the architecture, engineering, and construction (AEC) domain compared to other domains. This paper systematically presents an in-depth understanding of 360° panorama research trends and reveals the challenges and opportunities for future research in the AEC area. In particular, this systematic review analyzed eighty studies across two decades (2000-2022) to consider 360° panoramas’ application areas, methodologies, potential benefits, challenges, best practices, and future research directions for both AEC and non-AEC domains. Several prevalent application domains in AEC—namely architectural studies, construction education and training, construction visualization and progress monitoring, and cognitive analysis and human behavior in the construction industry—were identified. This paper indicates that 360° panoramas provide a higher sense of presence than conventional simulation methods (e.g., virtual reality). Moreover, pairing 360° panorama technologies with a head-mounted display significantly increases immersion when compared with other display options. Lastly, limitations of 360° panoramas, such as cybersickness and technical properties, are discussed. This paper is expected to shed light on the potential of these state-of-the-art technologies in the AEC domain, which can serve both academia and industry.

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Zhang, Y. H., C. W. M. Yuen, W. K. Wong und Chi Wai Kan. „An New Modified Automatic Panoramic Image Stitching Model in Fabric Defect Inspecting Area“. Applied Mechanics and Materials 389 (August 2013): 781–88. http://dx.doi.org/10.4028/www.scientific.net/amm.389.781.

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This paper presents some techniques for constructing panoramic image stitching from sequences of images captured by cameras from different angle in garment defects detecting area. The image stitching representation associates a transformation matrix with each input image. In this paper, we formulate stitching as a multi-image matching problem, and use invariant local features to find matches between all of the images. Our method is insensitive to the ordering, orientation, scale and illumination of the input images. It is also insensitive to noise images that are not part of a panorama, and can recognise multiple panoramas in an unordered image dataset. An improved SIFT(Scale Invariant Feature Transform) algorithm was used to locate the feature points in the scanned images targeting at the problem of automatically stitching of textile images which were scanned in divided pieces. RANSAC (random sample consensus) method is proposed to to estimate image transformation parameters and to find a solution that has the best consensus with the data. Techniques for estimating and rening camera focal lengths are also presented. In order to reduce accumulated registration errors, we apply global alignment (block adjustment) to the whole sequence of images, which results in an optimally registered image stitching. A local alignment technique is also developed which warps each image based on the results of pairwise local image registrations to compensate for small amounts of motion parallax introduced by translations of the camera and other unmodeled distortions.

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Qu, Zhong, Si-Peng Lin, Fang-Rong Ju und Ling Liu. „The Improved Algorithm of Fast Panorama Stitching for Image Sequence and Reducing the Distortion Errors“. Mathematical Problems in Engineering 2015 (2015): 1–12. http://dx.doi.org/10.1155/2015/428076.

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The traditional image stitching result based on the SIFT feature points extraction, to a certain extent, has distortion errors. The panorama, especially, would get more seriously distorted when compositing a panoramic result using a long image sequence. To achieve the goal of creating a high-quality panorama, the improved algorithm is proposed in this paper, including altering the way of selecting the reference image and putting forward a method that can compute the transformation matrix for any image of the sequence to align with the reference image in the same coordinate space. Additionally, the improved stitching method dynamically selects the next input image based on the number of SIFT matching points. Compared with the traditional stitching process, the improved method increases the number of matching feature points and reduces SIFT feature detection area of the reference image. The experimental results show that the improved method can not only accelerate the efficiency of image stitching processing, but also reduce the panoramic distortion errors, and finally we can obtain a pleasing panoramic result.

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Tierris, C. E. „Dose area product reference levels in dental panoramic radiology“. Radiation Protection Dosimetry 111, Nr. 3 (20.07.2004): 283–87. http://dx.doi.org/10.1093/rpd/nch341.

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Pan, Zhibin, Jin Tang, Tardi Tjahjadi und Fan Guo. „Fast Geo-Location Method Based on Panoramic Skyline in Hilly Area“. ISPRS International Journal of Geo-Information 10, Nr. 8 (09.08.2021): 537. http://dx.doi.org/10.3390/ijgi10080537.

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Localization method based on skyline for visual geo-location is an important auxiliary localization method that does not use a satellite positioning system. Due to the computational complexity, existing panoramic skyline localization methods determine a small area using prior knowledge or auxiliary sensors. After correcting the camera orientation using inertial navigation sensors, a fine position is achieved via the skyline. In this paper, a new panoramic skyline localization method is proposed that involves the following. By clustering the sampling points in the location area and improving the existing retrieval method, the computing efficiency of the panoramic skyline localization is increased by fourfold. Furthermore, the camera orientation is estimated accurately from the terrain features in the image. Experimental results show that the proposed method achieves higher localization accuracy and requires less computation for a large area without the aid of external sensors.

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Ismanto, Ikko Bagus, Laksono Djoko Nugroho und Wateno Oetomo. „STUDY OF DRAINAGE, PANORAMIC HOUSING, CEMENGKALANG VILLAGE, SIDOARJO DISTRICT“. INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM (IJATEIS) 1, Nr. 3 (08.12.2022): 73–90. http://dx.doi.org/10.55047/ijateis.v1i3.458.

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Panorama Residence housing which has an area of 8000 m2 is located in a plain area with a slope of about 0-1%. The survey results on the Panorama Residence Housing, Cemengkalang Village, Sidoarjo District, have an elevation of -0.20 m, slightly above the flood level – 0.30 m. This area has a high probability of flooding due to overflow from the Pucang River, which runs off (run-off water) from other areas if it rains with high intensity. Moreover, the Panorama Residence area is a dense residential area with roads and parking lots, so rainwater has a smaller chance of infiltrating and running off. After analysis, The flood discharge at the 25-year return period on the Pucang River was 72,561 m3/sec. At the same time, the cross-sectional capacity of the Pucang River was 64,402 m3/sec, so the cross-section of the Pucang River at the Panorama Residence Housing location experienced overflow. The run-off volume is 102.6 m3, while the total capacity is 565.68 m3, so the extended storage capacity is quite adequate. In rainy conditions, t = 30 minutes, the run-off volume that occurs = 30.96 m3, and the total channel length = 493.12 m, the total drainage channel capacity = 184.92 m3 is greater than the run-off volume, 30.96 m3.

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Cinnamon, Jonathan, und Lindi Jahiu. „Panoramic Street-Level Imagery in Data-Driven Urban Research: A Comprehensive Global Review of Applications, Techniques, and Practical Considerations“. ISPRS International Journal of Geo-Information 10, Nr. 7 (09.07.2021): 471. http://dx.doi.org/10.3390/ijgi10070471.

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The release of Google Street View in 2007 inspired several new panoramic street-level imagery platforms including Apple Look Around, Bing StreetSide, Baidu Total View, Tencent Street View, Naver Street View, and Yandex Panorama. The ever-increasing global capture of cities in 360° provides considerable new opportunities for data-driven urban research. This paper provides the first comprehensive, state-of-the-art review on the use of street-level imagery for urban analysis in five research areas: built environment and land use; health and wellbeing; natural environment; urban modelling and demographic surveillance; and area quality and reputation. Panoramic street-level imagery provides advantages in comparison to remotely sensed imagery and conventional urban data sources, whether manual, automated, or machine learning data extraction techniques are applied. Key advantages include low-cost, rapid, high-resolution, and wide-scale data capture, enhanced safety through remote presence, and a unique pedestrian/vehicle point of view for analyzing cities at the scale and perspective in which they are experienced. However, several limitations are evident, including limited ability to capture attribute information, unreliability for temporal analyses, limited use for depth and distance analyses, and the role of corporations as image-data gatekeepers. Findings provide detailed insight for those interested in using panoramic street-level imagery for urban research.

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Garcia, R. L., P. N. Happ und R. Q. Feitosa. „LARGE SCALE SEMANTIC SEGMENTATION OF VIRTUAL ENVIRONMENTS TO FACILITATE CORROSION MANAGEMENT“. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B2-2021 (28.06.2021): 465–70. http://dx.doi.org/10.5194/isprs-archives-xliii-b2-2021-465-2021.

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Abstract. This paper reports the results of a study that aims to develop semi-automatic methods for assessing the degree of corrosion in industrial plant. We evaluated two fully convolutional networks (U-Net and DeepLab v3 +) to segment corroded areas in panoramic images of offshore platforms. The experimental analysis was based on two datasets built for this study. The datasets comprise 9,112 2D images and 3,732 panoramic images. Both FCNs trained on 2D images were tested on 2D images and cubic projections of panoramic images. In addition to pointing out encouraging results, the experiments indicated that most prediction errors concentrated in corrosion defects with a small pixel area.

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Muftah, Ahmed. „PANORAMIC OF PALEOHABITATS OF PLIOCENE SAHABI FORMATION AND RECENT AS-SAHABI AREA, NORTHERN LIBYA“. Iraqi Geological Journal 53, Nr. 1B (27.03.2020): 1–12. http://dx.doi.org/10.46717/igj.53.1b.1rz-2020-03-01.

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Sutejo, Raih, und Siti Daryati. „Pengukuran Laju Paparan Radiasi pada Perisai Radiasi Ruang Panoramik di Instalasi Radiologi Rumah Sakit Islam Klaten“. Jurnal Imejing Diagnostik (JImeD) 2, Nr. 2 (11.07.2016): 164–66. http://dx.doi.org/10.31983/jimed.v2i2.3177.

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Background: Research about the measurement of radiation exposure rate on panoramic radiation shield in Radiology Installation of Klaten Islamic Hospital has been conducted. The background of this research is in the panoramic room there is a veil that has a gap on the bottom as high as 20 cm. The purpose of this research is to know the rate of radiation exposure on radiation panoramic shield in Radiology Installation of Klaten Islamic Hospital and the application of radiation protection system to the room.Methods: This research type is quantitative with survey approach that is writer do observation, documentation and measurement of exposure rate of radiation at controlled and uncontrolled area by doing measurement at two state that is before exposure (background radiation) and after exposure. The data obtained are then analyzed descriptively to declare a safe examination room or not for workers and the general public by comparing the measurement results with UNSCEAR and NCRP report No. 147.Result: The value of the background exposure rate in the panoramic chamber of the Klaten Hospital Radiology Installation exceeds the value of the background dose rate based on the location of the height of an area according to UNSCEAR. The background exposure value in the panoramic space ranges from 0.14 to 0.175 μGy/hour. The actual radiation exposure measurements at point A is 0.00021 mGy/hour, point B is 0.000175 mGy/h, point C is 0 mGy/hour, point D is 0 mGy/hour, point E is 0.000105 mGy/hour, point G is 0,000735 mGy/hour. These six results have not exceeded the NCRP report no. 147 is for controlled areas 0.0025 mGy / hr and uncontrolled area 0.0005 mGy / hr.

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Fu, Yao, Tingting Guo und Xingfang Zhao. „Intelligent Splicing Method of Virtual Reality Lingnan Cultural Heritage Panorama Based on Automatic Machine Learning“. Mobile Information Systems 2021 (19.08.2021): 1–10. http://dx.doi.org/10.1155/2021/8693436.

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With the increasing expansion of virtual reality application fields and the complexity of application content, the demand for real-time rendering of realistic graphics has increased sharply. This research mainly discusses the intelligent mosaic method of virtual reality Lingnan cultural heritage panorama based on automatic machine learning. In order to effectively make up for the impact of the insufficiency of the collection process on the quality of the final panoramic image of Lingnan cultural heritage, it is necessary to minimize the irregular rotation of the camera and collect images according to the overlapping area between adjacent images of appropriate size. In order to make Lingnan cultural heritage panoramic images have better visual effects, it is necessary to preprocess the images before image registration and fusion. Image preprocessing mainly includes image denoising and image projection transformation. In this study, cylindrical projection is used to construct the panorama of Lingnan cultural heritage. For each Lingnan cultural heritage training image, we first perform image segmentation to obtain multiple regions and extract the visual features of each region. We use automatic machine learning models to train the visual feature set and use the bagging method to generate different training subsets. In order to generate each component classifier, we determine the overlap area of the two images according to the matched SIFT feature points and determine the best stitching line during the implementation of stitching. In this paper, the number of pixels in the first row of the overlapping area is used to determine the candidate stitching line column, and the best stitching line position should be determined in consideration of the smallest color difference in the stitching area and the most similar texture on both sides. This article uses a Java Applet-based approach to realize virtual roaming of viewing panoramic images of Lingnan cultural heritage in IE browser. The highest accuracy of SIFT is 82.22%, and the lowest recognition time is 0.01 s. This research will promote the development of Lingnan cultural heritage.

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Vanshul Bhasker. „Panoramic Image Stitching: A Survey“. International Journal for Modern Trends in Science and Technology 6, Nr. 12 (04.12.2020): 93–97. http://dx.doi.org/10.46501/ijmtst061218.

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This electronic document is a report on Image Stitching. Image stitching is the process of creating an image panorama from a given set of images that have some common(overlapping) area in them. Previous researches done on this topic show that there is still a lot of scope for improvement in this field as although we are able to achieve good results but we haven’t really been able to achieve perfection. There are a lot of factors that are to be blamed here. While Stitching Images, there could be many challenges such as images being corrupt by noise and/or presence of parallax in the images. Image Stitching process is divided into 5 major steps: Image Registration, Feature Detection, Feature Matching, Homography Estimation and Image Blending. In this document we are going to discuss the current status of image processing techniques and what are the challenges being faced.

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Aji, Riswandha Risang, Visilya Faniza, Tarlani und Verry Damayanti. „Landslide Disaster Engineering in Tourism Potential Area“. IOP Conference Series: Earth and Environmental Science 830, Nr. 1 (01.09.2021): 012036. http://dx.doi.org/10.1088/1755-1315/830/1/012036.

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Abstract Regional developments in Indonesia have much potential to sustain regional living and environment, especially in tourism. Some regional areas have natural resources such as panoramic landscape, coastal zone, agricultural area, forest, rivers, waterfall, and even natural theme park as their selling point which become a tourism trend. However, these regions also face the risk of the excessive exploitation of natural resources. One of the risks found in the highland region, where the main attraction point is the landscape view, yet it is most likely to be vulnerable to the landslide. To prevent a natural disaster such as landslide, disaster engineering is one of the solutions. This research aims to develop suitable disaster engineering for regional with tourism potential as its main development sector. Certain articles are reviewed thoroughly to get the conclusion of what is the most suitable disaster engineering for regional development. The result of the research shows that disaster risk prevention is the most important aspect and possibly can be done by vegetation, infrastructure, and landscape engineering. In conclusion, regional development that uses natural resources utilisation in the highland region for panoramic-based tourism and landslide disaster prevention must be work simultaneously.

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Aji, Riswandha Risang, Visilya Faniza, Tarlani und Verry Damayanti. „Landslide Disaster Engineering in Tourism Potential Area“. IOP Conference Series: Earth and Environmental Science 830, Nr. 1 (01.09.2021): 012036. http://dx.doi.org/10.1088/1755-1315/830/1/012036.

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Abstract Regional developments in Indonesia have much potential to sustain regional living and environment, especially in tourism. Some regional areas have natural resources such as panoramic landscape, coastal zone, agricultural area, forest, rivers, waterfall, and even natural theme park as their selling point which become a tourism trend. However, these regions also face the risk of the excessive exploitation of natural resources. One of the risks found in the highland region, where the main attraction point is the landscape view, yet it is most likely to be vulnerable to the landslide. To prevent a natural disaster such as landslide, disaster engineering is one of the solutions. This research aims to develop suitable disaster engineering for regional with tourism potential as its main development sector. Certain articles are reviewed thoroughly to get the conclusion of what is the most suitable disaster engineering for regional development. The result of the research shows that disaster risk prevention is the most important aspect and possibly can be done by vegetation, infrastructure, and landscape engineering. In conclusion, regional development that uses natural resources utilisation in the highland region for panoramic-based tourism and landslide disaster prevention must be work simultaneously.

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Gunawan, Gunawan, Ria Noerianingsih Firman, Farina Pramanik und Aga Satria Nurrachman. „Gambaran squamous cell carcinoma posterior mandibula pada radiograf panoramik“. Jurnal Radiologi Dentomaksilofasial Indonesia 4, Nr. 1 (10.05.2020): 41. http://dx.doi.org/10.32793/jrdi.v4i1.479.

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Objectives: This study is aimed to report a case of mandibular left posterior squamous cell carcinoma on panoramic radiographs. Case Report: A 61 years male patient came to the RSGM UNPAD Radiology Installation carrying a referral letter to have panoramic examination. The patient had his molars extracted one year ago, but then six months later he complained of swelling. Since one week ago he has been feeling pain and difficulty opening my mouth, premedication of amoxicillin and paracetamol has been given. Extra oral examination showed facial asymmetry, swelling, intra-oral examination of swelling, redness accompanied by ulceration. A panoramic radiograph showed loss of left molar teeth, radiointermediate area in the left posterior region of the mandible ± 5 cm, radiolucent ill-defined non-corticated, irregular in the posterior mandibular body. Conclusion: Panoramic radiographs can be used as a supportive examination of SCC cases which show the presence of an ill-defined non-corticated radiointermediate area, irregular bone invasion

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Lubis, Ratih Trikusumadewi, Fitri Angraini Nasution, Azhari Azhari und Farina Pramanik. „Florid osseous dysplasia, lesi radiopak bilateral pada radiograf panoramik“. Jurnal Radiologi Dentomaksilofasial Indonesia 3, Nr. 3 (15.01.2020): 39. http://dx.doi.org/10.32793/jrdi.v3i3.444.

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Objectives: The aim of this report is to present a case of florid osseous dysplasia and understand its characteristics from panoramic radiography. Case Report: A 47-years-old female patient came to the oral and maxillofacial radiology department at Dental and Oral Hospital of Universitas Padjadjaran to take panoramic radiography. Patient’s chief complaints were pain on tooth 46 after being extracted about 4 days ago with numbness on the extraction area. Panoramic radiograph showed radioopaque lesions in the extraction area surrounded by a thin radiolucent area. In the periapical region of tooth 36 and 47 showed the same radiopaque image as tooth 46. The radiodiagnostic suspect of the lesions was bilateral florid osseous dysplasia in the posterior region of the mandible. Conclusion: The images of florid osseous dysplasia from panoramic radiography are radioopaque, well-defined, sclerotic border, and having soft tissue capsule when the lesion is immature condition. The most common condition of FOD affect both upper and lower jaw, but if the lesion only occur in one jaw, the lesion commonly happen in mandible with exact location is more posterior than canine teeth.

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WANG Xiao-heng, 王晓恒, 薛庆生 XUE Qing-sheng, 韩. 官. HAN Guan, 张. 刘. ZHANG Liu und 于. 磊. YU Lei. „Panoramic imagers with two fields of view and non-blind area“. Optics and Precision Engineering 26, Nr. 2 (2018): 316–24. http://dx.doi.org/10.3788/ope.20182602.0316.

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Shimasaki, Kohei, Zulhaj Muhammad Aliansyah, Taku Senoo, Idaku Ishii und Tomohiko Ito. „Wide-area Operation Monitoring of Conveyors Using a Panoramic Vibration Camera“. ISIJ International 61, Nr. 10 (15.10.2021): 2587–96. http://dx.doi.org/10.2355/isijinternational.isijint-2021-182.

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Shimasaki, Kohei, Zulhaj Muhammad Aliansyah, Taku Senoo, Idaku Ishii und Tomohiko Ito. „Wide-area Operation Monitoring of Conveyors Using a Panoramic Vibration Camera“. ISIJ International 61, Nr. 10 (15.10.2021): 2587–96. http://dx.doi.org/10.2355/isijinternational.isijint-2021-182.

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Shimasaki, Kohei, Zulhaj Muhammad Aliansyah, Taku Senoo, Idaku Ishii und Tomohiko Ito. „Wide-area Operation Monitoring of Conveyors Using a Panoramic Vibration Camera“. Tetsu-to-Hagane 107, Nr. 8 (2021): 633–43. http://dx.doi.org/10.2355/tetsutohagane.tetsu-2021-013.

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Lee, Sang-Ah, Byung-Ju Park, Hyongsuk Kim, Shyam Adhikari, Eun Joo Lee, Jae-Seo Lee, Byung-Cheol Kang und Suk-Ja Yoon. „Sensitive Area of Artificial Intelligence in Interpreting Osteoporosis on Panoramic Radiograph“. Korean Journal of Oral and Maxillofacial Pathology 45, Nr. 2 (30.04.2021): 59–65. http://dx.doi.org/10.17779/kaomp.2021.45.2.003.

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Srujana, S., K. Sripal Reddy und D. Praveen Kumar. „Speeded Up Robust Features Registration based Efficient Multi Row Panorama Generation“. Revista Gestão Inovação e Tecnologias 11, Nr. 2 (05.06.2021): 596–606. http://dx.doi.org/10.47059/revistageintec.v11i2.1696.

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Most of the current panorama generation tools need an input to be provided along a single axis, which means that only a small portion of the scene is recorded. To achieve a wide area of viewers, this paper suggests a multi-row panoramic technique (multi-panorama method). A pan/tilt camera allows the automatic or manual scanning to occur over large horizontal and vertical perspectives. Frame pictures in horizontal and vertical perspectives to adjust to their coordinates and projections will need separate projection marks. And the picture should be continually updated over long time periods but it should also coordinate with other pictures in the spatial region, so as to provide an almost seamless appearance. Before these challenges, the first and before those, the worse, the game creates an optimum scanning route that encompasses the majority of the display and utilizes the reference frame as a starting point to stitch all the remainder. Multi-row stitching has a method of ensuring a minor alignment fault is located in the first column, followed by a small miss in the second row. It should be noted that mrpg suggests a multi-point stitch to reduce seams and compensate for distortion, and so that the existing structure is not divided around the panoramic canvas in an inaccurate manner. A new panoramic image synthesis approach was introduced that produced results that indicate panoramic images are higher quality than other current state- of-ofthe- the-the-art approaches, and- of pan or-the-art image techniques. Because of this, we used the surf feature instead of the sift algorithm, we got to results much more quickly and, we were able to achieve the targeted precision much faster.

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BIRU, BANYU, HILMAN FAUZI und FAHMI OSCANDAR. „Sistem Identifikasi Usia Manusia pada Citra Panoramic Radiograph Gigi Molar Pertama“. ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 9, Nr. 1 (22.01.2021): 16. http://dx.doi.org/10.26760/elkomika.v9i1.16.

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ABSTRAKOdontologi forensik merupakan sebuah cabang ilmu forensik yang melakukan proses identifikasi berdasarkan gigi. Gigi merupakan salah satu bagian tubuh manusia paling kuat kuat. Dalam masa pertumbuhan, gigi manusia mengalami degeneratif pada usia tertentu, sehingga gigi dapat menjadi media dalam proses identifikasi usia. Pada penelitian ini, dirancang sistem pengolahan citra yang dapat mendeteksi usia manusia pada citra radiograf panoramik gigi. Sistem ini menggunakan metode Binary Large Object dan Decision Tree. Berdasarkan hasil pengujian, sistem dapat mendeteksi usia berdasarkan citra gigi molar pertama dengan tingkat akurasi lebih dari 80%, pada saat menggunakan parameter structuring element jenis Disk dengan jari-jari 4 piksel, ciri area dan rasio pulpa, serta jenis algoritma pada decision tree yaitu curvature dengan jumlah 50 percabangan.Kata kunci: citra radiograf panoramik, pulpa gigi, molar pertama, decision tree, binary large object ABSTRACTForensic odontology is a branch of forensic science that carries out dental identification processes. Teeth are one of the strongest parts of the human body In the period of growth, human teeth degenerative at a certain age, so that teeth can be a medium in the process of age identification. In this study, an image processing system was designed that could detect human age on dental panoramic radiographs. This system using the Binary Large Object and Decision Tree methods. Based on the test results, the system can detect age based on the image of the first molar with an accuracy level of more than 80%, when using a Disk type structuring element parameter with a radius of 4 pixels, the area and pulp ratio features, and the type of algorithm in the decision tree, namely curvature with the number of 50 branches.Keywords: panoramic radiograph image, teeth pulp, first molar, decision tree,binary large object

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Janiszewska-Olszowska, Joanna, Anna Jakubowska, Ewa Gieruszczak, Kacper Jakubowski, Piotr Wawrzyniak und Katarzyna Grocholewicz. „Carotid Artery Calcifications on Panoramic Radiographs“. International Journal of Environmental Research and Public Health 19, Nr. 21 (28.10.2022): 14056. http://dx.doi.org/10.3390/ijerph192114056.

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Objective: The objective of this study was to evaluate the prevalence of carotid artery calcifications (CACs) on panoramic radiographs of Polish dental patients. Methods: Panoramic radiographs made between 2005 and 2012 in 4000 patients born between 1922 and 1958 were accessed from the server of the Department of Radiology and analyzed for the presence or absence of CACs by a group of trained dentists. Results: The anatomical area covered by the analysis was visible in 2189 images (54.73%). Calcifications in the carotid arteries were found in 468 (21.68%) patients, including 327 (14.94%) unilaterally and 141 (6.44%) bilaterally. CACs were found in 284 (60.68%) women and 184 (39.32%) men. Conclusions: The prevalence rate of CACs detected on panoramic radiographs in patients aged 54 and older was 21.68%, which makes it an important clinical problem.

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Putri Noer Fadilah, RIna, Mutiara Sukma Suntana und Khaulah Maryam Jamiilah. „DESCRIPTION OF DENTAL CARIES ON PANORAMIC RADIOGRAPH AT RSGM UNJANI CIMAHI INDONESIA“. Journal of Health and Dental Sciences 3, Nr. 1 (26.05.2023): 43–52. http://dx.doi.org/10.54052/jhds.v3n1.p43-52.

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Panoramic radiograph was a diagnostic method that can see the overall picture of caries in the maxilla and mandible, with a wide range of caries lesions. The large detail area seen on the panoramic radiograph was instrumental for diagnosing caries location for the entire jaw. This study aimed to determine the appearance of dental caries based on panoramic radiographs at RSGM Unjani. This research was a descriptive study using probability techniques in the form of simple random sampling with 43 panoramic radiographs as a sample. The results of the study showed that in panoramic radiographs at RSGM Unjani that the highest frequency based on sex was female patients, the highest frequency based on age were patients in the 45-65 years age group, the highest frequency was based on the incidence location of dental caries were patients with dental caries in the anterior teeth and M1 teeth, and the frequency of caries in deciduous teeth was 100% in the 5-11 years age group. The study conclusion was all panoramic radiographs at RSGM Unjani have caries.

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Baiocchi, V., M. Barbarella, S. Del Pizzo, F. Giannone, S. Troisi, C. Piccaro und D. Marcantonio. „AUGUSTO'S SUNDIAL: IMAGE-BASED MODELING FOR REVERSE ENGENEERING PURPOSES“. ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W3 (23.02.2017): 63–69. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w3-63-2017.

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A photogrammetric survey of a unique archaeological site is reported in this paper. The survey was performed using both a panoramic image-based solution and by classical procedure. The panoramic image-based solution was carried out employing a commercial solution: the Trimble V10 Imaging Rover (IR). Such instrument is an integrated cameras system that captures 360 degrees digital panoramas, composed of 12 images, with a single push. The direct comparison of the point clouds obtained with traditional photogrammetric procedure and V10 stations, using the same GCP coordinates has been carried out in Cloud Compare, open source software that can provide the comparison between two point clouds supplied by all the main statistical data. The site is a portion of the dial plate of the “Horologium Augusti” inaugurated in 9 B.C.E. in the area of Campo Marzio and still present intact in the same position, in a cellar of a building in Rome, around 7 meter below the present ground level.

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Samala, Agariadne Dwinggo, Fadhli Ranuharja, Bayu Ramadhani Fajri, Yose Indarta und Winda Agustiarmi. „ViCT—Virtual Campus Tour Environment with Spherical Panorama: A Preliminary Exploration“. International Journal of Interactive Mobile Technologies (iJIM) 16, Nr. 16 (31.08.2022): 205–25. http://dx.doi.org/10.3991/ijim.v16i16.32889.

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ViCT or spelled "VISIT", is the name of a web-based application that is being developed to display various points and locations from the campus environment that can be accessed virtually. ViCT aims to help users, students, and the public explore campus with digital freedom of movement anytime and anywhere, educating users about campus facilities and services with an immersive technology experience that is eco-friendly and fun. The application development concept is unlimited visits and easily accessible via desktop and mobile, saving resources and costs. In this chapter, the focus of the researchers discusses the initial digital mapping of the campus environment, which is the object or study area of the development of virtual campus applications with 360-degree panoramic image techniques. Spherical panorama images are the primary basis of the virtual reality environment in this application. Each panoramic image is processed and merged into a unified whole on a web page. Spherical panorama photos captured using ultra-wide-angle lenses at the front and rear of the camera (dual fisheye) generate a visual field with a horizontal and vertical angle of view close to 360 degrees.

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Bandstra, M. S., B. J. Quiter, M. Salathe, K. J. Bilton, J. C. Curtis, S. Goldenberg und T. H. Y. Joshi. „Correlations Between Panoramic Imagery and Gamma-Ray Background in an Urban Area“. IEEE Transactions on Nuclear Science 68, Nr. 12 (Dezember 2021): 2818–34. http://dx.doi.org/10.1109/tns.2021.3128472.

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Sánchez, Sebastián F. „IFUs surveys, a panoramic view of galaxy evolution“. Proceedings of the International Astronomical Union 10, S309 (Juli 2014): 85–92. http://dx.doi.org/10.1017/s1743921314009375.

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AbstractWe present here a brief summary of the currenly on-going IFU surveys of galaxies in teh Local Universe, describing their main characteristics, including their sample selections, instrumental setups, wavelength ranges, and area of the galaxies covered. Finally, we make an emphasis on the main characteristics of the CALIFA survey and the more recent results that has been recently published.

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Cetin, Bilgun, Derya Icoz und Faruk Akgunlu. „Unilocular Radiolucent Lesions of the Jaws: a Retrospective Panoramic and Cone Beam Computed Tomography Evaluation“. Balkan Journal of Dental Medicine 24, Nr. 3 (01.11.2020): 28–34. http://dx.doi.org/10.2478/bjdm-2020-0025.

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SummaryBackground/Aim: The aim of this study was to evaluate and compare the imaging characteristics of common, radiolucent, unilocular, intraosseous lesions of the jaws using both panoramic radiography and cone beam computed tomography (CBCT); also, to evaluate sufficiency of panoramic radiography in determining characteristic features of jaw lesions.Material and Methods: Retrospectively selected images of 57 patients with histopathology results were evaluated by two oral radiologists. The lesions were assessed based on shape, location, borders, relationship with the mandibular canal, presence of destruction of cortical bone, and expansion of cortical bone, and presence of an unerupted tooth related to the lesion. In addition, the widest areas of the lesions were measured. A total of 9 (15.8%) odontogenic keratocysts, 9 (15.8%) apical granulomas, 24 (42.1%) radicular cysts, 12 (21.0%) dentigerous cysts and 3 (5.2%) central giant cell granulomas in 57 patients (20 women, 37 men) with a mean age of 36.93 ± 17.96 years were included. Fifty-seven CBCT and 56 panoramic images of these patients were evaluated.Results: Twenty-nine (50.8%) lesions were in the mandible and 28 (49.2%) in the maxilla. A statistically significant difference was determined for the areas in CBCT images (p=0.007).Conclusions: Panoramic radiography is not as successful as CBCT in demonstrating some characteristics of the lesions, such as expansion and destruction. The area measurements may be beneficial in establishing the differential diagnosis of the lesion.

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Azhari, Azhari. „THE ANALYSIS OF MANDIBULAR TRABECULAE ALVEOLAR PROCESS ON POST-MENOPAUSAL WOMEN THROUGH PANORAMIC RADIOGRAPH“. Dentika Dental Journal 20, Nr. 2 (01.12.2017): 52–56. http://dx.doi.org/10.32734/dentika.v20i2.284.

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The alveolar process is the most supporting tooth containing trabeculae and has the highest metabolic rate in the mandibular body of post-menopausal women. The decreasing in estrogens level on post-menopausal women results a faster reaction than men for 2-3 times. This research aims to determine the bone quality based on trabeculae alveolar process analysis using panoramic radiographs. The research methodology was to conduct 67 samples of panoramic radiographs from RSGM Unpad. This research applied observational analytic methodology by taking cross-sectional data using secondary data on three groups of bone quality based on measurement using DEXA t-score (normal, osteopenia and osteoporosis). The panoramic radiograph data processing was conducted with Image J software by separating the background and foreground (trabeculae). A focus of 30x30 mm ROI in the alveolar distal portion of the left and right mandibular second premolar teeth, and calculation of trabecular area. Result: average of normal trabecular area: 82.35%, osteopenia: 73.9% and osteoporosis: 68.7% respectively. The difference between normal and osteoporosis was discovered, but no difference was found between normal and osteopenia with p <0.05. This research concludes that the region of interest trabecular of alveolar process with panoramic radiograph can be used to detect osteoporosis on post-menopausal women.

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Wickramasinghe, Ajith Premakumara, und Anusha Jayasiri. „Statistical Model for the Quality of Panoramic Images of Mural Paintings“. Advances in Technology 2, Nr. 1 (21.02.2022): 7–17. http://dx.doi.org/10.31357/ait.v2i1.5388.

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Panoramic image creation is crucial in area of digital imaging. It is developed by combining an overlapped image component series of a large image, which is difficult to be focused on using a normal camera due to a large field of view. Measuring the quality of panoramic images is a challenging task. Therefore, the objectives of this research are to find the attributes of visual quality of panoramic images and to propose predictor variables for a statistical model for the quality of panoramic images of mural paintings. Authors have used a proposed novel method for creating panoramic images of mural painting. In this study, authors researched on the quality attributes of digital images. Accordingly, color balance, noise and distortion were identified as the two most critical factors which affect the overall quality of the panoramic images. Authors visited three temples and captured digital images of mural paintings of large scale using a simple method. Then, panoramic images were created using three methods: the novel method with other two methods, Photoshop (available in the market) and Hugin (open source software). Subjective evaluation was applied through experts in the field of Visual Arts. Participants were asked to rate the quality using four-point Likert scale for color balance, noise and distortion as predictor variables and overall quality as the response variable of panoramic images. Ordinal logistic regression was fitted through Minitab statistical package and the results showed that color balance and noise and distortion are two important attributes for the quality of the panoramic images. Moreover, the collected data fit the model at a higher accuracy. Full paper submission of ICIET 2021

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Wahyuni, Ayu, Muliaty Yunus und Muhammad Ruslin. „The difference uses of panoramic photo and cbct evaluation of the gnathoplasty surgery outcome“. Journal of Dentomaxillofacial Science 2, Nr. 2 (01.08.2017): 110. http://dx.doi.org/10.15562/jdmfs.v2i2.535.

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Objective: Gnathoschisis is the most common congenital craniofacial abnormality in patients with cleft lip and/or palate (CL and/or P). The panoramic radiograph is one means to establish a diagnosis and treatment plan with two-dimension photograph. The cone-beam computed tomography (CBCT) is one means of supporting the maxillofacial to get a three-dimension photograph. The aim of this study was to determine the difference in the results of the use of panoramic photos and CBCT in evaluation before and after gnathoplasty surgery.Material and Methods: This is an observational descriptive research with cross-sectional study method. All samples that meet the suitable criteria are put in this research. The data gained by collecting status card at medical record installation about photo panoramic application in gnathoschisis patients was then compare to the examination with CBCT.Results: The result performed shows that there is a significant difference between panoramic and CBCT picture. The CBCT provide better evaluation about teeth age and segment position of jaw curve from the cleft size. While the panoramic photo provides a widely covered area to observe facial and teeth bone.Conclusion: The CBCT results are more accurate in evaluating gnathoplasty surgery than panoramic photo; however, exposure to the radiation should be considered.

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Jeon, Kug Jin, Sang-Sun Han, Chena Lee, Yoon Joo Choi, Hoi In Jung und Young Hyun Kim. „Application of panoramic radiography with a multilayer imaging program for detecting proximal caries: a preliminary clinical study“. Dentomaxillofacial Radiology 49, Nr. 8 (01.12.2020): 20190467. http://dx.doi.org/10.1259/dmfr.20190467.

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Objective: The aim of this study is to introduce a novel program of panoramic radiography that shows 41 multilayer images from the buccal to lingual aspects in a region of interest, and to evaluate the effectiveness of this program for detecting proximal caries. Methods: In total, 480 premolars and molars on 30 panoramic radiographs taken with the multilayer imaging program were included in this study. The presence or absence of caries in 960 proximal surfaces was assessed by three experienced oral and maxillofacial radiologists as a consensus-based gold-standard. Two general dentists evaluated and scored proximal caries on 980 surfaces on panoramic radiographs with and without the multilayer imaging program. The two general dentists’ scores were compared with the gold-standard, and were analyzed for sensitivity, specificity, positive predictive value, negative predictive value, and area under the receiver operating characteristic (ROC) curve with and without using the program. The area under the ROC curve was analyzed using STATA/SE 13.1. Results: When the multilayer imaging program was used for panoramic radiography, the inter- and intraobserver agreement of the two general dentists improved. All values, including the area under the ROC curve, were higher when the multilayer imaging program was used than when it was not used. The area under the ROC curve showed a statistically significant improvement only in Observer 1, whose diagnostic ability was poorer than that of Observer 2. Conclusions:o This multilayer imaging program might help the inexperienced dentist to improve the diagnostic accuracy of proximal caries. If further studies would be performed in various clinical application, it could be useful when intraoral radiography taking is difficult for reasons such as mouth-opening limitations and the gag reflex of the patients.

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Lim, Jae Young, Ik-Hwan Kim und Je Seon Song. „Analysis of the Prevalence of Taurodont Deciduous Molars in Children“. JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY 47, Nr. 4 (30.11.2020): 438–45. http://dx.doi.org/10.5933/jkapd.2020.47.4.438.

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Taurodontism is an anomaly characterized by a long and broad pulpal cavity and consumed apical location of the furcation area. This study aimed to determine the prevalence of taurodontism in deciduous molars based on digital panoramic radiographs of children. The study was performed on a sample of panoramic radiographs taken from 2,473 Korean children who visited the department of pediatric dentistry, Yonsei University Dental Hospital between Nov. 2005 and Mar. 2018. Taurodontism was mainly categorized by Daito’s method. Using panoramic radiographs, taurodontism was also categorized into mesotaurodontism, hypotaurodontism, and hypertaurodontism. Mesotaurodontism was the most prevalent type. A total of 2,473 panoramic radiographs were evaluated. The prevalence of taurodontism was 5.7% in general, 51.5% in the left quadrant, 48.5% in the right quadrant, 6.3% in the maxilla, and 93.7% in the mandible. The distribution of taurodontism stratified by gender showed a higher prevalence in males. This is a comprehensive study on the prevalence of taurodontism in children using the largest sample size to date.

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Блинов, В., V. Blinov, М. Карташов, M. Kartashov, С. Жолудев, S. Zholudev, О. Зорникова und O. Zornikova. „Estimation of possibilities of the cone-beam computed tomography and panoramic tomography in diagnostics of radiopack lesions in the maxillo-facial region“. Actual problems in dentistry 12, Nr. 2 (26.07.2016): 70–78. http://dx.doi.org/10.18481/2077-7566-2016-12-2-70-78.

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The purpose of the study was to assess the diagnostic possibilities and interobserver agreement between the radiologist the CBCT and panoramic tomography in diagnostics of radiopack lesions in the maxillo-facial region. The study design: the results of morphological and radial examination of 272 patients with radiopack lesions in the maxillo-facial region were assessed. Consistency among the radiologists was evaluated by means of Cohen»s kappa. The diagnostic signi cance of the results was assessed using Student»s t-test. Results: CBCT sensitivity was 98%, speci city – 89%, diagnostic accuracy – 97%. Sensitivity of the panoramic tomography of the dental alignments was 69%, speci city – 44%, diagnostic accuracy – 64%. The area under the ROC-curve for the panoramic tomography – 0,612 (p˂0,05), for the CBCT – 0,937 (p˂0,05). Interobserver agreement in estimating the panoramic tomography was satisfactory (k=0,24, p˂0,001), it was high for the CBCT (k=0,83, p˂0,0001).

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Saeed, M. K., A. A. M. Asiri, Q. S. Alhamami und K. Alshamrani. „Intraoral and dental panoramic imaging: A diagnostic reference level study comparing radiation dose using two dosimeters in Saudi Arabia“. Radioprotection 57, Nr. 1 (Januar 2022): 55–59. http://dx.doi.org/10.1051/radiopro/2021033.

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The purpose of this study was to determine local diagnostic reference levels (DRLs) for patients undergoing intraoral and panoramic dental examinations at the intraoral radiology units of the public hospitals in Najran, Saudi Arabia. DRLs were determined based on measurements of dose area product (DAP) at intraoral and dental panoramic radiology units. This study has covered over 47% of the public hospitals in Najran with the intention to establish the local DRLs for all the possible intraoral and panoramic X-ray examinations for children and adults. For intraoral, the values for the estimated DAP ranged from 6 to 70 mGy.cm2 (average: 27.6, 29.8, 39.9 and 39.6 mGy.cm2 for incisive, both premolar and canine, molar upper and lower jaw, respectively). For panoramic, the mean value of DAP is 61.5 and 89.8 mGy.cm2 for paediatric and adult patients, respectively. DRLs were established at the 3rd quartile for incisive, both premolar and canine, molar upper and lower jaw protocols are 29.2, 37.1, 50.2 and 50.1 mGy.cm2, respectively. Furthermore, DRLs for panoramic radiography for paediatric and adult patients are 72.7 and 92.3 mGy.cm2, respectively. The proposed DRLs were comparable to those previously reported in other countries, such as UK and India.

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Zeng, Xin, Yong Qi und Mingjun Liu. „Multi-task panoramic driving perception algorithm based on improved YOLOv5“. Highlights in Science, Engineering and Technology 34 (28.02.2023): 314–25. http://dx.doi.org/10.54097/hset.v34i.5489.

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Panoramic driving perception algorithm is becoming more and more important in the field of autonomous driving. A multi-task panoramic driving perception algorithm can quickly help vehicles make reasonable decisions. Aiming at the real-time high-precision problem of a multi-task panoramic driving perception algorithm, a multi-task panoramic Driving perception algorithm based on YOLOv5 structure is proposed. The algorithm consists of a backbone network for feature extraction and two branch networks for specific tasks. The C3 module in the original backbone network of YOLOv5 is replaced with an inversion residual bottleneck module to reduce the computation amount of the network and improve the network recognition accuracy. This algorithm proposes a new branch network, which can simultaneously train the segmentation of driveable area and lane detection, and improve the speed of feature extraction. In BDD100K, the public data set of Berkeley AI Laboratory, the detection speed of the algorithm proposed in this paper reaches 110FPS, which is 19FPS higher than that of the algorithm before improvement. The detection accuracy of traffic target detection reaches 77.2%, and the detection accuracy of lane line detection reaches 71.1%. It can well meet the real-time requirements of panoramic driving perception.

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Rockenbach, Maria Ivete Bolzan, Maria Carméli Correia Sampaio, Lino João da Costa und Nilza Pereira da Costa. „Evaluation of mandibular implant sites: correlation between panoramic and linear tomography“. Brazilian Dental Journal 14, Nr. 3 (2003): 209–13. http://dx.doi.org/10.1590/s0103-64402003000300013.

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The reliability of the linear tomography and panoramic radiography made with X-ray equipment was evaluated (Vera View Scope X-600; Morita). The sample was composed of 20 dry human hemimandibles, in which the area selected for analysis was 1.5 cm distal from the limit set before the mental foramen. Four measurements were made. The images obtained were drawn on acetate paper and the hemimandibles cut at the demarcated area. The measurements were made using a digital electronic pachymeter. The values found for the radiographic images were compared to those obtained in the mandibular specimens and submitted to statistical evaluation by the Wilcoxon test. It was concluded that both techniques were reliable for the accomplishment of vertical linear measurements in the selected area. However, a 2.0 mm safety margin is recommended.

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Zhang, Kun, Xing Zhong, Lei Zhang und Tianqing Zhang. „Design of a panoramic annular lens with ultrawide angle and small blind area“. Applied Optics 59, Nr. 19 (29.06.2020): 5737. http://dx.doi.org/10.1364/ao.395598.

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Vadiati Saberi, Bardia, Negar Khosravifard, Kowsar Nooshmand, Zahra Dalili Kajan und Mohammad Ebrahim Ghaffari. „Fractal analysis of the trabecular bone pattern in the presence/absence of metal artifact–producing objects: Comparison of cone-beam computed tomography with panoramic and periapical radiography“. Dentomaxillofacial Radiology 50, Nr. 6 (01.09.2021): 20200559. http://dx.doi.org/10.1259/dmfr.20200559.

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Objectives: The effect of metallic objects on the fractal dimension (FD), bone area fraction (BAF) and gray scale values (GSVs) of cone-beam CT (CBCT) images was assessed. Also, FD, BAF and GSV were compared among CBCT, digital periapical and panoramic radiographies. Methods: Digital periapical and panoramic radiographs were acquired from six blocks of bovine rib. Additionally, different arrangements of titanium implants and intracanal metallic posts were created in the bone blocks and CBCT scans were taken from the different implant-root arrangements. The three radiographical modalities were compared by analysis of variance. Pairwise comparisons between the modalities were performed by the Tukey test (significance level set at 0.05). Results: Different root-implant arrangements in the CBCT images revealed no significant differences in the FD (p = 0.920), BAF and GSV values (p = 0.623). FD differed significantly among the three modalities (p < 0.001). Significant differences were found between CBCT and each of the periapical and panoramic techniques (p < 0.001), while no remarkable differences were observed in the FD of the periapical and panoramic images (p = 0.294). BAF and GSV showed significantly different results among the three radiographical techniques (p < 0.001). The difference was remarkable between CBCT and periapical (p < 0.001), CBCT and panoramic (p < 0.001) and periapical and panoramic (p = 0.008). Conclusion: Presence of titanium implants and intracanal posts does not produce different results in the fractal analysis (FA) of the CBCT images. The trabecular bone pattern is best assessed by FA of the periapical radiographs followed by the panoramic and CBCT techniques, respectively.

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Chen, Xu, Qingyan Meng, Die Hu, Linlin Zhang und Jian Yang. „Evaluating Greenery around Streets Using Baidu Panoramic Street View Images and the Panoramic Green View Index“. Forests 10, Nr. 12 (04.12.2019): 1109. http://dx.doi.org/10.3390/f10121109.

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Urban street-side greenery, as an indispensable element of urban green spaces, is beneficial to residents’ physical and mental health. As readily available internet data, street view images have been widely used in urban green spaces research. While the relevant research using multiple images from different directions at a sampling point, researchers need to calculate the index of visible vegetation cover for many times. However, one Baidu panoramic street view image can cover the 360° view similar to that of a pedestrian. In this study, we selected 9644 points at 50-m intervals along the street lines in the central district of Sanya city, China, and acquired panoramic images via the Baidu application programming interface (API). The sky pixels were detected within the Baidu panoramic street view images using a proposed reflectance indicator. The green vegetation was extracted according to the Back Propagation (BP) neural-network method. Our proposed method was validated by comparing the results of the manual recognition and PSPNet method, and the accuracy met the requirements of the study. The Panoramic Green View Index (PGVI) was proposed to quantitatively evaluate greenery around streets. The authors found that the highest frequency value in the distribution was 0.075, which accounted for 32% of the total sample points, and the average PGVI value in this study area was low; the PGVI values between different roads varied greatly, and primary roads tended to have higher PGVI values than other roads. This case study proved that the PGVI is well suited for evaluating greenery around streets. We suggest that the PGVI derived from Baidu panoramic street view images may be a useful tool for city managers to support urban green spaces planning and management.

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Mao, Fangfang, und Lei Zhao. „Panoramic Image Generation Technology for Full Digital Stereo 3D Reconstruction in Water Conservancy Surveying and Mapping Engineering“. Mobile Information Systems 2022 (13.08.2022): 1–10. http://dx.doi.org/10.1155/2022/9718469.

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Due to the lack of image feature extraction in traditional panoramic image generation technology, the effect of 3D reconstruction of physical objects is poor. In this paper, fully digital stereoscopic 3D reconstruction technology is introduced in water conservancy surveying and mapping engineering to ensure complete panoramic image generation. Through in-depth analysis of the principle of 3D reconstruction technology and the database, the detailed water conservancy surveying and mapping engineering images are obtained, the feature vectors of the obtained panoramic images are matched, and the database is compared and positioned according to the matched position features. By using the initial position camera and calibration features, comparison and query are conducted with the image database, to remove the worthless confidence data, retain the outline of the object with reference value, obtain a fixed pose center point, and remove the overlapping area in the process of 3D reconstruction after calculating the outline of the image. Finally, the automatic generation of panoramic images is realized. Finally, the results of experimental analysis show that the panoramic image generation technology of the fully digital stereoscopic 3D reconstruction proposed in this paper has a relative accuracy of 49% compared with the traditional image generation method, and the effect of image generation is relatively good, which has a certain use value.

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Sun, Rishuang, Jinliang Xu und Huan Zhang. „Panoramic UAV Image Mosaic Method and Its Application in Pavement Paving Temperature Monitoring“. Coatings 13, Nr. 3 (27.02.2023): 528. http://dx.doi.org/10.3390/coatings13030528.

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The low-altitude technology of unmanned airborne infrared detection system is used to effectively monitor the temperature segregation in the paving stage and realize the temperature uniformity control of asphalt pavement construction. The image mosaic method can splice two images with overlapping areas together to form a panoramic image. In order to solve the problems of long time-consuming and low accuracy of aerial image mosaic algorithm, the low-temperature area of the whole pavement can be obtained quickly and accurately. In this paper, threshold segmentation technology is introduced to convert the image captured by the unmanned aerial vehicle (UAV) into a binary greyscale image so as to compensate for the mosaic error caused by temperature difference. In order to improve the efficiency and accuracy of splicing, a reference plate is used, which can provide enough feature points for splicing. Finally, the image mosaic method proposed in this paper can quickly obtain the image of the whole low-temperature area of the newly paved asphalt pavement, which has practical value and positive significance for the quality control of asphalt pavement.

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Weijie, Zheng, Xu Dechao, Chen Yong, Zhang Xing und Mu Qing. „Multi Step Transient Hybrid Simulation Framework Design and Practical Engineering Application for AC / DC Power Grid“. E3S Web of Conferences 256 (2021): 01010. http://dx.doi.org/10.1051/e3sconf/202125601010.

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Based on the large power grid simulation and the existing security prevention and control mode, this paper further integrates the multi-step transient hybrid simulation architecture computing technology to research the high-performance analysis and situational awareness simulation technology of interconnected AC / DC large power grid security and stability characteristics. So as to realize the “panoramic situational awareness, wide area coordinated control, flexible and efficient service” of large power grid, and improve the super large scale power grid Comprehensive security defense and intelligent monitoring level of panoramic, multi-dimensional and three-dimensional.

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Triglav-Čekada, Mihaela, und Matej Gabrovec. „Documentation of Triglav glacier, Slovenia, using non-metric panoramic images“. Annals of Glaciology 54, Nr. 62 (2013): 80–86. http://dx.doi.org/10.3189/2013aog62a095.

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AbstractTriglav glacier is situated on the northeast side of the highest Slovenian mountain peak, Triglav; it is a glacier remnant of the Little Ice Age. Next to Triglav glacier is the Kredarica mountain hut with a meteorological station. At 2514 ma.s.l., it is the highSest meteorological station in Slovenia, and has been in continuous operation since 1954. In this paper, the acquisition of three-dimensional data from archived, non-metric, panoramic, Horizont images is presented. The annual variations of Triglav glacier’s area are given for the period 1976–2010, together with monthly snow variations for the years 1977 and 1998. Additionally, theoretical and empirical volumes and an empirical thickness reduction are computed. The changes to Triglav glacier are compared with the summarized meteorological data from the Kredarica meteorological station. In 1976 Triglav glacier covered an area of 15 ha; by 1992 this had shrunk to 4.3 ha, and it reached its minimum of 0.6 ha in 2003, as measured from Horizont images. Since then the glacier has been mainly conserved by the snow cover from previous winters.

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50

Zhao, Xin Bo, Xiao Chun Zou und Zhong Ma. „An Efficient Sport Video Segmentation System“. Key Engineering Materials 467-469 (Februar 2011): 2042–47. http://dx.doi.org/10.4028/www.scientific.net/kem.467-469.2042.

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Digital sport video segmentation is an active area of research. And such an efficient sport video segmentation system is necessary. The system employs the feature-based motion estimator to estimate the video motion model parameters. Thus, we can use the result to compose the panorama. Project frames with motion parameters, the corresponding frames were connected and then stitched into a panoramic image according to infer the frames on a 2D manifold. For accurate alignment, we iterate between the motion estimator and topology determination to optimized parameters. Accuracy panorama composition is implemented to redress the error accumulation and achieve the pixel combination. After that, for the purpose of removing the foreground objects, we use the panorama estimation process. At last, we determine the sportsman segmentation masks that are the final output of the segmentation system. The test results showed that the proposed system is efficient.

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