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Artículos de revistas sobre el tema "Landmark Region"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 15 de febrero de 2022

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1

Kim, Taehyung, Jiwon Mok, and Euichul Lee. "Detecting Facial Region and Landmarks at Once via Deep Network." Sensors 21, no. 16 (2021): 5360. http://dx.doi.org/10.3390/s21165360.

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For accurate and fast detection of facial landmarks, we propose a new facial landmark detection method. Previous facial landmark detection models generally perform a face detection step before landmark detection. This greatly affects landmark detection performance depending on which face detection model is used. Therefore, we propose a model that can simultaneously detect a face region and a landmark without performing the face detection step before landmark detection. The proposed single-shot detection model is based on the framework of YOLOv3, a one-stage object detection method, and the los

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2

Vallespin, Glenn, Renalyn Torralba, Daniljun Sanchez, Jashin Rosal, and Chennie Solania. "Chiropteran Composition and Morphometric Analysis of Ptenochirus Jagori in Caraga State University, Caraga Region, Philippines." Southeastern Philippines Journal of Research and Development 26, no. 1 (2021): 49–62. http://dx.doi.org/10.53899/spjrd.v26i1.124.

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Due to potential and present ecological alteration in roosting sites and food source areas in neighboring vicinity of Caraga State University in Caraga Region, Philippines, unsettled progression of bats are documented through wing variation analysis and fluctuating asymmetry (FA). Twenty-one (21) collected samples of Ptenochirus jagori (Greater Musky Fruit Bat) yields asymmetry of 90.6396%, affecting landmarks of the elbow (landmark 1), carpals (landmark 2), metacarpals (landmark 3, 4, and 10), and phalanges’ fingers (landmarks 5, 6, 11, and 12). Wing variation (landmark-based) analysis sugges

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3

Li, Ruixiang, Yuchen Sun, Jianwei Hu, Te Ma, and Xiangyang Luo. "Street-Level Landmark Evaluation Based on Nearest Routers." Security and Communication Networks 2018 (July 18, 2018): 1–12. http://dx.doi.org/10.1155/2018/2507293.

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High reliable street-level landmarks are the basis of IP geolocation, but landmark evaluation methods having been proposed cannot evaluate the street-level landmarks. Therefore, in this paper, a street-level landmark evaluation method based on nearest router is proposed. The location organization declared is regarded as an area not a point. Firstly, the declared location of preevaluated landmark is verified by IP location databases. Secondly, the preevaluated landmarks are grouped according to their nearest router. Then, the distance constraint is obtained using delay value between landmark an

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4

Epstein, Russell A., and Lindsay K. Vass. "Neural systems for landmark-based wayfinding in humans." Philosophical Transactions of the Royal Society B: Biological Sciences 369, no. 1635 (2014): 20120533. http://dx.doi.org/10.1098/rstb.2012.0533.

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Humans and animals use landmarks during wayfinding to determine where they are in the world and to guide their way to their destination. To implement this strategy, known as landmark-based piloting, a navigator must be able to: (i) identify individual landmarks, (ii) use these landmarks to determine their current position and heading, (iii) access long-term knowledge about the spatial relationships between locations and (iv) use this knowledge to plan a route to their navigational goal. Here, we review neuroimaging, neuropsychological and neurophysiological data that link the first three of th

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5

Zhang, W., J. Li, Y. Wang, Y. Xiao, P. Liu, and S. Zhang. "A LANDMARK EXTRACTION METHOD ASSOCIATED WITH GEOMETRIC FEATURES AND LOCATION DISTRIBUTION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3 (April 30, 2018): 2307–13. http://dx.doi.org/10.5194/isprs-archives-xlii-3-2307-2018.

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Landmark plays an important role in spatial cognition and spatial knowledge organization. Significance measuring model is the main method of landmark extraction. It is difficult to take account of the spatial distribution pattern of landmarks because that the significance of landmark is built in one-dimensional space. In this paper, we start with the geometric features of the ground object, an extraction method based on the target height, target gap and field of view is proposed. According to the influence region of Voronoi Diagram, the description of target gap is established to the geometric

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6

Melniichuk, Mykhaylo, and Taras Bezsmertniuk. "RECREATIONAL ATTRACTIVENESS OF LANDSCAPE ARCHITECTURE LANDMARKS OF RIVNE REGION." GEOGRAPHY AND TOURISM, no. 44 (2018): 81–91. http://dx.doi.org/10.17721/2308-135x.2019.44.81-91.

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Purpose. The purpose of the article is to analyze recreational attractiveness of landscape architecture landmarks of Rivne region. Methods. During the research the following methods as analysis, synthesis, deduction, induction, descriptive, comparative, statistical, systems were used. Results. The place of landscape architecture landmarks in the structure of natural-anthropogenic recreational and tourist resources of Rivne region is determined. Present recreational potential of landscape architecture landmarks of national value of Rivne region is described. The prospects of the recreational us

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7

Ralovich, K., J. Zhang, S. K. Zhou, D. Comaniciu, and M. Sofka. "Progressive Data Transmission for Anatomical Landmark Detection in a Cloud." Methods of Information in Medicine 51, no. 03 (2012): 268–78. http://dx.doi.org/10.3414/me11-02-0017.

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SummaryBackground: In the concept of cloud-computing-based systems, various authorized users have secure access to patient records from a number of care delivery organizations from any location. This creates a growing need for remote visualization, advanced image processing, state-of-the-art image analysis, and computer aided diagnosis.Objectives: This paper proposes a system of algorithms for automatic detection of anatomical landmarks in 3D volumes in the cloud computing environment. The system addresses the inherent problem of limited bandwidth between a (thin) client, data center, and data

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8

Kim, Jaeil, Sang Seo, Dong Lee, and Jinah Park. "Template-based landmark and region mapping of bone." Journal of Foot and Ankle Research 7, Suppl 1 (2014): A42. http://dx.doi.org/10.1186/1757-1146-7-s1-a42.

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9

Chate, R. A. C. "Cephalometric Landmark Identification within the Petrous Temporal Region." British Journal of Orthodontics 14, no. 1 (1987): 33–41. http://dx.doi.org/10.1179/bjo.14.1.33.

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The literature is reviewed regarding the errors associated with relocating cephalometric petrous temporal landmarks. An experimental cranial fixation device, to be used with cephalostat ear rods that subsequently ‘hinge away’, is presented. Twenty-five consecutive cephalograms taken by this method (Group B) are compared with another two groups of 25 radiographs. The second group (Group A) constitutes those taken with perspex ear rods in situ, whilst the third group (Group C) constitutes those with wooden ear rods. The variance ratios demonstrate that the error in relocating most of the petrous

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10

Song, Yu, Xu Qiao, Yutaro Iwamoto, and Yen-wei Chen. "Automatic Cephalometric Landmark Detection on X-ray Images Using a Deep-Learning Method." Applied Sciences 10, no. 7 (2020): 2547. http://dx.doi.org/10.3390/app10072547.

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Accurate automatic quantitative cephalometry are essential for orthodontics. However, manual labeling of cephalometric landmarks is tedious and subjective, which also must be performed by professional doctors. In recent years, deep learning has gained attention for its success in computer vision field. It has achieved large progress in resolving problems like image classification or image segmentation. In this paper, we propose a two-step method which can automatically detect cephalometric landmarks on skeletal X-ray images. First, we roughly extract a region of interest (ROI) patch for each l

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11

LOMBER, STEPHEN G., and BERTRAM R. PAYNE. "Task-specific reversal of visual hemineglect following bilateral reversible deactivation of posterior parietal cortex: A comparison with deactivation of the superior colliculus." Visual Neuroscience 18, no. 3 (2001): 487–99. http://dx.doi.org/10.1017/s0952523801183148.

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The purpose of the present study was to compare and contrast behavioral performance on three different tasks of spatial cognition during unilateral and bilateral reversible deactivation of posterior parietal cortex. Specifically, we examined posterior middle suprasylvian (pMS) sulcal cortex in adult cats during temporary and reversible cooling deactivation. In Task 1, the cats oriented to a high-contrast, black visual stimulus moved into the visual field periphery. In Task 2, the cats oriented to a static light-emitting diode (LED). Task 3 examined the cats' ability to determine whether a blac

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12

DE SILVA, Lalanath. "Escazú Agreement 2018: A Landmark for the LAC Region." Chinese Journal of Environmental Law 2, no. 1 (2018): 93–98. http://dx.doi.org/10.1163/24686042-12340024.

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13

Park, Seho, Kunyoung Lee, Jae-A. Lim, et al. "Differences in Facial Expressions between Spontaneous and Posed Smiles: Automated Method by Action Units and Three-Dimensional Facial Landmarks." Sensors 20, no. 4 (2020): 1199. http://dx.doi.org/10.3390/s20041199.

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Research on emotion recognition from facial expressions has found evidence of different muscle movements between genuine and posed smiles. To further confirm discrete movement intensities of each facial segment, we explored differences in facial expressions between spontaneous and posed smiles with three-dimensional facial landmarks. Advanced machine analysis was adopted to measure changes in the dynamics of 68 segmented facial regions. A total of 57 normal adults (19 men, 38 women) who displayed adequate posed and spontaneous facial expressions for happiness were included in the analyses. The

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14

Isaacs, Seth J., and Parul Goyal. "Endoscopic Anatomy of the Pterygopalatine Fossa." American Journal of Rhinology 21, no. 5 (2007): 644–47. http://dx.doi.org/10.2500/ajr.2007.21.3085.

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Background The pterygopalatine fossa can be involved with a variety of infectious and neoplastic processes. This region can be entered endoscopically, but endoscopic landmarks to localize the neurovascular structures in the pterygopalatine fossa have not yet been reported. Objectives The purpose of this study is to describe the location of the neurovascular structures in the pterygopalatine fossa in relation to consistent intranasal landmarks. Methods Endoscopic dissections of cadaveric heads were performed. The locations of neurovascular structures in the region were defined. Results The sphe

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15

Hino, Manabu, Shuji Nakagawa, Yuji Arai, et al. "Extensor hallucis longus tendon is a new distal landmark for coronal tibial component alignment in total knee arthroplasty: A study of magnetic resonance imaging." Journal of Orthopaedic Surgery 28, no. 1 (2020): 230949902091234. http://dx.doi.org/10.1177/2309499020912340.

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Purpose: In total knee arthroplasty (TKA), various landmarks are generally used to ensure correct osteotomy. In this study, we examined whether the tibialis anterior tendon (TAT) or the extensor hallucis longus tendon (EHLT) could be used as a landmark of the center of the ankle joint in patients with knee osteoarthrosis (OA), using magnetic resonance imaging (MRI). Methods: The subjects were 61 patients with OA in 79 knees (males: 8 with 9 knees and females: 53 with 70 knees). With the ankle joint secured in the intermediate position, MRI from the knee joint to the ankle joint was performed i

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16

Lozano, Yave Roberto, Hector Page, Pierre-Yves Jacob, Eleonora Lomi, James Street, and Kate Jeffery. "Retrosplenial and postsubicular head direction cells compared during visual landmark discrimination." Brain and Neuroscience Advances 1 (January 1, 2017): 239821281772185. http://dx.doi.org/10.1177/2398212817721859.

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Background: Visual landmarks are used by head direction (HD) cells to establish and help update the animal’s representation of head direction, for use in orientation and navigation. Two cortical regions that are connected to primary visual areas, postsubiculum (PoS) and retrosplenial cortex (RSC), possess HD cells: we investigated whether they differ in how they process visual landmarks. Methods: We compared PoS and RSC HD cell activity from tetrode-implanted rats exploring an arena in which correct HD orientation required discrimination of two opposing landmarks having high, moderate or low d

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17

Chen, Hengxin, Mingqi Gao, Karl Ricanek, Weiliang Xu, and Bin Fang. "A Novel Race Classification Method Based on Periocular Features Fusion." International Journal of Pattern Recognition and Artificial Intelligence 31, no. 08 (2017): 1750026. http://dx.doi.org/10.1142/s0218001417500264.

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Race identification is an essential ability for human eyes. Race classification by machine based on face image can be used in some practical application fields. Employing holistic face analysis, local feature extraction and 3D model, many race classification methods have been introduced. In this paper, we propose a novel fusion feature based on periocular region features for classifying East Asian from Caucasian. With the periocular region landmarks, we extract five local textures or geometrical features in some interesting regions which contain available discriminating race information. And t

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18

Wan, Shu-Yen, Lun-Jou Lo, and Che-Yao Chang. "Disturbance-Region Removal on Landmark-less Registration of Craniofacial Images Acquired by CBCT and 3D Photography." International Journal of Emerging Technology and Advanced Engineering 11, no. 3 (2021): 1–7. http://dx.doi.org/10.46338/ijetae0321_01.

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Superimposition of cranio-maxillofacial images acquired from cone-beam computed tomography (CBCT) and facial images acquired from three-dimensional photography (3D photography) can assist in diagnosis and surgical planning. Conventional approaches individually identified prominent facial landmarks on both modalities, respectively and assessed their correspondence. Considering, however, variation of facial expressions or drastic feature distortion when the face or head was imaged at different timing, landmark registration can become challenging. This paper proposes a disturbance-region removal

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19

Udekwe, Charles Nnamdi, and Akinlolu Adeniran Ponnle. "Application of Cardinal Points Symmetry Landmarks Distribution Model to B-Mode Ultrasound Images of Transverse Cross-section of Thin-walled Phantom Carotid Arteries." European Journal of Engineering Research and Science 4, no. 12 (2019): 96–101. http://dx.doi.org/10.24018/ejers.2019.4.12.1656.

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We had earlier developed a technique based on cardinal point symmetry landmark distribution model (CPS-LDM) to completely characterize the Region of Interest (ROI) of the geometric shape of thick-walled simulated B-mode ultrasound images of carotid artery imaged in the transverse plane. In this paper, this developed technique was applied to completely characterize the region of interest of the geometric shape of B-mode ultrasound images of thin-walled phantom carotid artery imaged in the transverse plane. The developed model employs a combination of fixed landmarks (FLs) and movable landmarks

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20

Bakhshalizadeh, Shima, and Ali Bani. "Use of geometric morphometrics to identify ecophenotypic variation of juvenile Persian sturgeon Acipenser persicus." Scientia Marina 81, no. 2 (2017): 187. http://dx.doi.org/10.3989/scimar.04487.01a.

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Study of phenotypic variation is essential for identifying discrete phenotypic stocks. We sampled immature Persian sturgeon from the eastern and western portion of the southern Caspian Sea to test for morphological differences that could predict the ecophenotypic variation of Persian sturgeon. Geometric morphometric methods were used to quantify body shape. Configuration of landmark coordinates of fish body were scaled, translated and rotated using generalized Procrustes analysis, followed by univariate analysis of variance of resulting shape coordinates to evaluate potential morphological dif

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21

Lozanoff, Scott, Stefan Jureczek, Tracey Feng, and Raj Padwal. "Anterior Cranial Base Morphology in Mice with Midfacial Retrusion." Cleft Palate-Craniofacial Journal 31, no. 6 (1994): 417–28. http://dx.doi.org/10.1597/1545-1569_1994_031_0417_acbmim_2.3.co_2.

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The role of the anterior cranial base in the morphogenesis of class III malocclusions remains uncertain. This study was conducted to determine whether morphologic deficiencies occur in the anterior cranial base in the Brachyrrhine (Br) mouse mutant showing severe midfacial retrusion, which is characteristic of a class III malocclusion. Crania from three groups of C3H/Hej, 3H1 Br/+, and 3H1+/+ mice, each consisting of 15 animals, were collected at 1, 3, and 5 days of age (total = 135). The anterior cranial base from each specimen was subjected to computerized reconstruction and ten landmarks we

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Lagravère, Manuel O., Jillian M. Gordon, Ines H. Guedes, et al. "Reliability of Traditional Cephalometric Landmarks as Seen in Three-Dimensional Analysis in Maxillary Expansion Treatments." Angle Orthodontist 79, no. 6 (2009): 1047–56. http://dx.doi.org/10.2319/010509-10r.1.

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Abstract Objective: To evaluate intra-examiner and inter-examiner reliability of 3D CBCT-generated landmarks previously used in traditional 2D cephalometry. Materials and Methods: Twenty-four CBCTs NewTom 3G (Aperio Services, Verona, Italy) were randomly selected from patients participating in a clinical trial involving maxillary expansion treatments. The principal investigator located the landmarks five times, and four other investigators located the same landmarks once. Intra-examiner and inter-examiner reliability values were determined using intraclass correlation coefficients (ICCs). To a

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Cavalcanti, Daniel D., Abhishek Agrawal, Ulises Garcia-Gonzalez, et al. "Anterolateral C1–C2 Transarticular Fixation for Atlantoaxial Arthrodesis: Landmarks, Working Area, and Angles of Approach." Operative Neurosurgery 67, no. 3 (2010): ons38—ons42. http://dx.doi.org/10.1227/01.neu.0000383134.47267.0f.

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Abstract BACKGROUND: An alternative route must be used for atlantoaxial arthrodesis to avoid the risks of transoral route or when posterior approaches are contraindicated. OBJECTIVE: To assess relevant quantitative anatomic parameters for C1–C2 anterolateral transarticular fixation and to demonstrate the nuances of an anterolateral approach to the upper cervical spine. METHODS: Five cadaveric necks were dissected bilaterally to demonstrate anatomic landmarks and surgical technique. The C2 pars interarticularis was used as the entry for inserting screws toward the C1 lateral mass. Ten computed

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Chen, Hengxin, Mingqi Gao, and Bin Fang. "An improved active shape model method for facial landmarking based on relative position feature." International Journal of Wavelets, Multiresolution and Information Processing 15, no. 01 (2017): 1750008. http://dx.doi.org/10.1142/s0219691317500084.

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Active Shape Model (ASM) is a most effective method of facial landmarking. It employs two models, profile model and shape model, to match the position of facial landmark. In this paper, we introduce a new model based on relative position feature (RPF) in local region to improve ASM. We found the fact that landmarks with larger matching error have more shape matching displacement. So, in our method, RPF model is used to adjust the position of landmarks with more shape matching displacement in every matching iteration. STASM (Stacked ASM) is practical standard of ASM and is proved to be the best

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Suweko, Sangiru Kasmo, Maria Immaculata Ririk winandari, and Etty Retnowati Kridarso. "BANTEN LAMA LANDMARK BASED ON VISITORS PERCEPTION." International Journal on Livable Space 3, no. 2 (2018): 104. http://dx.doi.org/10.25105/livas.v3i2.3168.

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<p><br />Old Banten Region is an area that is famous for trading at its time. Currently, related to the past glory this place turn into a religious tourist destination .There are still many relics of ancient buildings which show the image of the past glory as well as the element of the city image in Old Banten Region . This study has aim to explore the image of the city of Banten Lama based on visitors' visual perception. The research method uses visual perception method with a rating rating of 14 Landmarks (tetenger) selected based on case selection. Respondents consisted of 40 vi

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Duan, Ling-Yu, Jie Chen, Rongrong Ji, Tiejun Huang, and Wen Gao. "Learning Compact Visual Descriptors for Low Bit Rate Mobile Landmark Search." AI Magazine 34, no. 2 (2013): 67. http://dx.doi.org/10.1609/aimag.v34i2.2469.

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Coming with the ever growing computational power of mobile devices, mobile visual search have undergone an evolution in techniques and applications. A significant trend is low bit rate visual search, where compact visual descriptors are extracted directly over a mobile and delivered as queries rather than raw images to reduce the query transmission latency. In this article, we introduce our work on low bit rate mobile landmark search, in which a compact yet discriminative landmark image descriptor is extracted by using location context such as GPS, crowd-sourced hotspot WLAN, and cell tower lo

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Kim, Jonghyuk, Jose Guivant, Martin L. Sollie, Torleiv H. Bryne, and Tor Arne Johansen. "Compressed pseudo-SLAM: pseudorange-integrated compressed simultaneous localisation and mapping for unmanned aerial vehicle navigation." Journal of Navigation 74, no. 5 (2021): 1091–103. http://dx.doi.org/10.1017/s037346332100031x.

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AbstractThis paper addresses the fusion of the pseudorange/pseudorange rate observations from the global navigation satellite system and the inertial–visual simultaneous localisation and mapping (SLAM) to achieve reliable navigation of unmanned aerial vehicles. This work extends the previous work on a simulation-based study [Kim et al. (2017). Compressed fusion of GNSS and inertial navigation with simultaneous localisation and mapping. IEEE Aerospace and Electronic Systems Magazine, 32(8), 22–36] to a real-flight dataset collected from a fixed-wing unmanned aerial vehicle platform. The dataset

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Zhang, Chunjie, Yifan Zhang, Xiaobin Zhu, et al. "Socio-mobile landmark recognition using local features with adaptive region selection." Neurocomputing 172 (January 2016): 100–113. http://dx.doi.org/10.1016/j.neucom.2014.10.105.

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Barma, Saranya Deb, Gunamani Rabha, and Kunjalal Talukdar. "Accessory head of sternocleidomastoid-a case report." National Journal of Clinical Anatomy 04, no. 04 (2015): 205–7. http://dx.doi.org/10.1055/s-0039-3401578.

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AbstractAs many important nerves emerge from the posterior border of sternocleidomastoid (SCM), it is important to know the morphological anatomy of sternocleidomastoid for surgical as well as radiological purpose. During routine dissection of head and neck for student demonstration, an accessory head of sternocleidomastoid was found arising from the superior surface of the middle third of the clavicle on the right side of the neck. Sternocleidomastoid is a key landmark as it divides the neck into anterior and lateral regions (anterior and posterior triangles respectively. Morphological variat

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Rupic, Ivana, Ivana Čuković-Bagić, Vladimir Ivković, and Tomislav Lauc. "Assessment of facial landmarks for bone asymmetry in geometric morphometric studies: A review." South European Journal of Orthodontics and Dentofacial Research 7, no. 2(S) (2021): 6–16. http://dx.doi.org/10.5937/sejodr7-29735.

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Background Anthropometrical points or landmarks are key for facial shape analysis using geometric morphometrics. In the early 1990s Fred Bookstein created a classification system with landmarks type 1., type 2., type 3. based on anatomical landmark homology. However, thirty years later, a uniform referece index of landmarks that can be used for assessing facial asymmetry still does not exist. The criteria for selecting landmark points are not fully defined, which makes classification of homology and and landmarks prone to arbitrary interpretations. A systematic review of literature indic

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Jha, Aaradhana J., Gean C. Viner, Haley McKissack, et al. "Accuracy of talonavicular injection using ultrasound versus anatomical landmark: a cadaver study." Acta Radiologica 61, no. 10 (2020): 1359–64. http://dx.doi.org/10.1177/0284185120901507.

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Background Intra-articular injections have diagnostic and therapeutic roles in foot and ankle pathologies due to complex anatomy, small size, diverse bones, and joints with proximity in this region. Conventionally, these injections are carried out using anatomical landmark technique and/or fluoroscopic guidance. The small joint space and needle size make the injection challenging. Fluoroscopy is not readily available in the clinical setting; ultrasound-guidance for injections is therefore increasingly being used. We compared the accuracy of intra-articular talonavicular injections using the an

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Manh, Hung Nguyen, Ching-Chun Huang, and Lee Hsiao-Yi. "Landmark-based device calibration and region-based modeling for RSS-based localization." Wireless Communications and Mobile Computing 16, no. 13 (2015): 1726–45. http://dx.doi.org/10.1002/wcm.2647.

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Cao, Shaomeng, Zhiye Chen, Congsheng Li, Chuanfeng Lv, Tongning Wu, and Bin Lv. "Landmark‐based multi‐region ensemble convolutional neural networks for bone age assessment." International Journal of Imaging Systems and Technology 29, no. 4 (2019): 457–64. http://dx.doi.org/10.1002/ima.22323.

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Cheng, Hong, Zicheng Liu, and Jie Yang. "Multi-support-region image descriptors and its application to street landmark localization." Machine Vision and Applications 23, no. 4 (2011): 805–19. http://dx.doi.org/10.1007/s00138-011-0323-2.

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Isla, Armando T., and Josefino G. Hernandez. "Retroverted Uncinate Process: An Anatomic Variation." Philippine Journal of Otolaryngology-Head and Neck Surgery 24, no. 2 (2009): 40. http://dx.doi.org/10.32412/pjohns.v24i2.691.

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Considerable attention has been directed toward analysis of paranasal sinus anatomy through coronal plane computerized tomographic (CT) imaging in this age of functional endoscopic sinus surgery. Recently, it has become apparent that anatomic variations are also evident on CT analysis of patients. Subtle anatomic features can now be imaged through CT, with a level of clarity previously not afforded by standard sinus radiographs.1     The key to a successful endoscopic sinus surgery is the proper identification of landmarks, and intelligent decision-making should t

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Zhong, Xu, Yu Zhou, and Hanyu Liu. "Design and recognition of artificial landmarks for reliable indoor self-localization of mobile robots." International Journal of Advanced Robotic Systems 14, no. 1 (2017): 172988141769348. http://dx.doi.org/10.1177/1729881417693489.

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This article presents a self-localization scheme for indoor mobile robot navigation based on reliable design and recognition of artificial visual landmarks. Each landmark is patterned with a set of concentric circular rings in black and white, which reliably encodes the landmark’s identity under environmental illumination. A mobile robot in navigation uses an onboard camera to capture landmarks in the environment. The landmarks in an image are detected and identified using a bilayer recognition algorithm: A global recognition process initially extracts candidate landmark regions across the who

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Budhiraja, Virendra, Rakhi Rastogi, Rekha Lalwani, Prabhat Goel, and Subhash Chandra Bose. "Study of Position, Shape, and Size of Mental Foramen Utilizing Various Parameters in Dry Adult Human Mandibles from North India." ISRN Anatomy 2013 (December 17, 2013): 1–5. http://dx.doi.org/10.5402/2013/961429.

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Background. As the mental foramen (MF) is an important landmark to facilitate surgical, local anesthetic, and other invasive procedures, the present study was aimed to elucidate its morphological features and morphometric parameters with reference to surrounding landmarks. Material and Method. 105 dry adult human mandibles of unknown sex were observed for position, shape, and number of mental foramina. Their size was measured using a digital vernier caliper and statistically analyzed by mean and standard deviations (SD). Results. In most cases (74.3%), the MF was oval in shape and situated on

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Yu, Xiaohui, Fei Wang, and Lina Wang. "Preservation Strategies of Longdong Ancient City Walls in Systematic Perspective." Open House International 41, no. 3 (2016): 50–55. http://dx.doi.org/10.1108/ohi-03-2016-b0008.

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City wall is an important symbol of ancient Chinese cities with unique geographical and cultural characteristics. Thus, the preservation of this historic landmark is considered significantly important. However, numerous residential construction activities and changes in ecological environment have destructed a great portion of the city walls in recent years. This study looks into the preservation of the ancient city walls from the systematic perspective and in line with the actual characteristics of Longdong Region to provide guideline measures for the protection and restoration of such landma

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39

Gruber, Leonhard, Alexander Loizides, Siegfried Peer, et al. "Ultrasonography of the Peripheral Nerves of the Forearm, Wrist and Hand: Definition of Landmarks, Anatomical Correlation and Clinical Implications." RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren 192, no. 11 (2020): 1060–72. http://dx.doi.org/10.1055/a-1110-7508.

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Background Peripheral nerve pathologies of the upper extremity are increasingly assessed by high-resolution ultrasonography (HRUS), yet rapid identification of nerve segments can be difficult due to small nerve diameters and complex regional anatomy. We propose a landmark-based approach to speed up and facilitate evaluation and intervention in this region. Method Relevant landmarks and section planes for eleven nerve segments of the forearm, wrist and hand were defined by ultrasonography in cadaver arms before cryosection and topographical neurovascular preparation. Information on all nerve se

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40

Udekwe, Charles Nnamdi, and Akinlolu Adediran Ponnle. "Cardinal Points Symmetry Landmarks Distribution Model for Segmentation of Region of Interest in Simulated B-Mode Ultrasound Carotid Artery Images." European Journal of Engineering Research and Science 4, no. 5 (2019): 26–33. http://dx.doi.org/10.24018/ejers.2019.4.5.1243.

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Measurement accuracy and understanding of geometry of Common Carotid Artery (CCA) play an important role in carotid atherosclerosis assessment and management. In order to device techniques that can accurately analyze the effects of plaques on the carotid artery, a model that can sufficiently segment the Region of Interest (ROI) in the B-mode ultrasound image of carotid artery is needed. In this paper, a new Cardinal Points Symmetry Landmarks Distribution Model (CPS-LDM) to sufficiently segment the ROI in the carotid artery B-mode ultrasound imaged in the transverse plane is developed. The deve

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41

TAKEISHI, Naoya, Akira TANIMOTO, Takehisa YAIRI, et al. "Evaluation of Interest-region Detectors and Descriptors for Automatic Landmark Tracking on Asteroids." TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 58, no. 1 (2015): 45–53. http://dx.doi.org/10.2322/tjsass.58.45.

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42

Webster, Mark, and Nigel C. Hughes. "Compaction-related deformation in Cambrian olenelloid trilobites and its implications for fossil morphometry." Journal of Paleontology 73, no. 2 (1999): 355–71. http://dx.doi.org/10.1017/s0022336000027827.

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Morphometric analyses of silicified and nonsilicified (preserved in shale) specimens of the olenelloid trilobites Olenellus (Olenellus) gilberti Meek (in White, 1874) and Nephrolenellus geniculatus Palmer, 1998, from the Lower Cambrian C-Shale Member of the Pioche Formation show that even well-preserved specimens in shales have undergone significant changes in lateral as well as vertical dimensions as a result of compaction. Analyses of cephalic landmarks show that in both species compaction causes posteriordirected collapse of the anterior lobe of the glabella, adaxial deformation of the ocul

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43

Liu, Zheng, Qin He, Fengyuan Zou, Yuyan Ding, and Bugao Xu. "Apparel ease distribution analysis using three-dimensional motion capture." Textile Research Journal 89, no. 19-20 (2019): 4323–35. http://dx.doi.org/10.1177/0040517519832842.

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When an ease allowance at a body landmark is given, the ease distribution along the circumference at this landmark can still change with the wearing circumstance. This paper investigates both static and dynamic ease distributions of clothes at bust and waist lines by using a three-dimensional motion capture system (3DMCS). Female participants with the same body type were recruited to conduct experiments to examine how ease distributions change with body motions. Specific markers provided with the 3DMCS were adhered to the surfaces of a participant and her clothes along the bust and waist lines

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44

Liu, Hongzhe, Weicheng Zheng, Cheng Xu, Teng Liu, and Min Zuo. "Facial Landmark Detection Using Generative Adversarial Network Combined with Autoencoder for Occlusion." Mathematical Problems in Engineering 2020 (November 26, 2020): 1–8. http://dx.doi.org/10.1155/2020/4589260.

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The performance of the facial landmark detection model will be in trouble when it is under occlusion condition. In this paper, we present an effective framework with the objective of addressing the occlusion problem for facial landmark detection, which includes a generative adversarial network with improved autoencoders (GAN-IAs) and deep regression networks. In this model, GAN-IA can restore the occluded face region by utilizing skip concatenation among feature maps to keep more details. Meanwhile, self-attention mechanism that is effective in modeling long-range dependencies is employed to r

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Arora, Archana, Manish Munjal, and Damanpreet Singh. "Transnasal hypophysectomy in conchal sella: a case report." International Journal of Otorhinolaryngology and Head and Neck Surgery 3, no. 1 (2016): 156. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20164822.

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<p class="abstract"><span>The trans-sphenoid access to the pituitary gland is the most common approach for pituitary adenomas. The different routes to the sella ultimately traverse the sphenoid sinus. Therefore the anatomical variations of the sphenoid sinus have major impact on the surgical access. </span>The conchal non-pneumatized sphenoid was always considered to be a contraindication to the trans-sphenoid approach to the sella. The preset study was conducted on a 50 year old male with conchal sella with chief complains of headache and associated loss of vision in left ey

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KOISO, KENGO, TAKEHISA MORI, HIROAKI KAWAGISHI, KATSUMI TANAKA, and TAKAHIRO MATSUMOTO. "INFOLOD AND LANDMARK: SPATIAL PRESENTATION OF ATTRIBUTE INFORMATION AND COMPUTING REPRESENTATIVE OBJECTS FOR SPATIAL DATA." International Journal of Cooperative Information Systems 09, no. 01n02 (2000): 53–75. http://dx.doi.org/10.1142/s0218843000000053.

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In this paper, we will propose a way of visualizing attribute information for spatial objects in the three-dimensional space and a calculation method for extracting a representative object from objects in a given region. In conventional three-dimensional visualizations such as architectural simulations, most of the attention has been paid to image data such as colors, shapes, and textures of spatial objects. In this research, we will focus on the attribute information of spatial objects including image data. We propose InfoLOD concept which introduces the notion of level of detail(LOD) to attr

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Poliachik, Sandra L., Andrew V. Poliakov, Laura A. Jansen, et al. "Tissue localization during resective epilepsy surgery." Neurosurgical Focus 34, no. 6 (2013): E8. http://dx.doi.org/10.3171/2013.3.focus1360.

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Object Imaging-guided surgery (IGS) systems are widely used in neurosurgical practice. During epilepsy surgery, the authors routinely use IGS landmarks to localize intracranial electrodes and/or specific brain regions. The authors have developed a technique to coregister these landmarks with pre- and postoperative scans and the Montreal Neurological Institute (MNI) standard space brain MRI to allow 1) localization and identification of tissue anatomy; and 2) identification of Brodmann areas (BAs) of the tissue resected during epilepsy surgery. Tracking tissue in this fashion allows for better

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Wang, Yuwei, Yuanying Qiu, Peitao Cheng, and Xuechao Duan. "Robust Loop Closure Detection Integrating Visual–Spatial–Semantic Information via Topological Graphs and CNN Features." Remote Sensing 12, no. 23 (2020): 3890. http://dx.doi.org/10.3390/rs12233890.

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Loop closure detection is a key module for visual simultaneous localization and mapping (SLAM). Most previous methods for this module have not made full use of the information provided by images, i.e., they have only used the visual appearance or have only considered the spatial relationships of landmarks; the visual, spatial and semantic information have not been fully integrated. In this paper, a robust loop closure detection approach integrating visual–spatial–semantic information is proposed by employing topological graphs and convolutional neural network (CNN) features. Firstly, to reduce

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49

Ivan, Moysiyenko, Zakharova Maryna, Melnik Ruslan, and Sadova Olena. "An annotated list of the flora of the landmark Burkuty Plavni (Kherson region, Ukraine)." Chornomorski Botanical Journal 14, no. 1 (2018): 6–25. http://dx.doi.org/10.14255/2308-9628/18.141/1.

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Schultz, Sarah M., Michelle M. Jacobs, Kara S. Gorgos, Nicole T. Wasylyk, Sean Hanrahan, and Bonnie L. Van Lunen. "Reliability of Entry-Level Athletic Trainers' Palpation Skills of Bony Anatomical Landmarks in the Lumbopelvic Region." Athletic Training Education Journal 10, no. 4 (2015): 296–301. http://dx.doi.org/10.4085/1004296.

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Context Accuracy of locating various lumbopelvic landmarks for novice athletic trainers has not been examined. Objective To examine reliability of novice athletic trainers for identification of the L4 spinous process and right and left posterior superior iliac spine (PSIS). Design Cross-sectional reliability. Setting Laboratory. Patients or Other Participants Sixteen physically active volunteers participated (age = 22.56 ± 2.67 years, height = 172.0 ± 9.38 cm, mass = 67.39 ± 9.73 kg, body mass index = 22.8 ± 1.97). Four novice athletic trainers (certified &lt; 2 years) served as the tester

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