Log in

Relevant bibliographies by topics / Ultra-wide angle camera / Journal articles

To see the other types of publications on this topic, follow the link: Ultra-wide angle camera.

Journal articles on the topic 'Ultra-wide angle camera'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 45 journal articles for your research on the topic 'Ultra-wide angle camera.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Shim, Dongha, Hyung O. Kim, Minwoo Lee, et al. "An ultra-wide-angle wireless camera using ultra wide band communication." International Journal of Sensor Networks 19, no. 1 (2015): 37. http://dx.doi.org/10.1504/ijsnet.2015.071392.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Li, Lijun, Yuanda Wang, Chao Xiong, and Wei Shang. "Rendezvous of Nonholonomic Unmanned Ground Vehicles with Ultra-Wide-Angle Cameras." World Electric Vehicle Journal 15, no. 8 (2024): 370. http://dx.doi.org/10.3390/wevj15080370.

Full text

Abstract:

In this paper, a time-varying delay output feedback control method based on the potential barrier function is proposed, which can solve the communication delay and field-of-view (FOV) constraints of Unmanned Ground Vehicle (UGV) clusters when communicating with ultra-wide-angle cameras. First, a second-order oscillator and an output feedback controller are utilized to feed back the position and direction of neighboring vehicles by exchanging control quantities and to solve the time-varying delay in the position computation of the ultra-wide-angle camera. Due to the limited target radiation ran

APA, Harvard, Vancouver, ISO, and other styles

3

Shim, Dongha, and Jason Yi. "Ultra-wide-angle Wireless Endoscope with a Backend-camera-controller Architecture." International Journal of Electronics and Telecommunications 63, no. 1 (2017): 19–24. http://dx.doi.org/10.1515/eletel-2017-0003.

Full text

Abstract:

Abstract This paper presents a wireless endoscope with an ultra-wide FOV (Field of View) of 130° and HD resolution (1280×720 pixels). The proposed endoscope consists of a camera head, cable, camera controller, and wireless handle. The lens module with a 150° degrees AOV (Angle of View) is achieved using the plastic injection-molding process to reduce manufacturing costs. A serial CMOS image sensor using the MIPI (Mobile Industry Processor Interface) CSI-2 (Camera Serial Interface-2) interface physically separates the camera processor from the camera head. The camera head and the cable have a c

APA, Harvard, Vancouver, ISO, and other styles

4

Alkhimova, Svitlana, and Illia Davydovych. "Accuracy assessment of marker recognition using ultra wide angle camera." Technology audit and production reserves 3, no. 2(65) (2022): 6–10. http://dx.doi.org/10.15587/2706-5448.2022.259068.

Full text

Abstract:

Modern devices that support augmented reality technology are widely used in various fields of human activity, including medicine. Head mounted displays may provide an attractive alternative to traditional surgery navigation systems because allow users to stand at the first point of view and interact with objects in their surroundings naturally. Thus, the object of research in this study is recognition accuracy of fiducial markers in zones where ultra-wide angle camera distort the most. This is motivated by the need to increase user workspace for interaction with markers compare to the workspac

APA, Harvard, Vancouver, ISO, and other styles

5

Svitlana, Alkhimova, and Davydovych Illia. "Accuracy assessment of marker recognition using ultra wide angle camera." Technology audit and production reserves 3, no. 2(65) (2022): 6–10. https://doi.org/10.15587/2706-5448.2022.259068.

Full text

Abstract:

<em>Modern devices that support augmented reality technology are widely used in various fields of human activity, including medicine. Head mounted displays may provide an attractive alternative to traditional surgery navigation systems because allow users to stand at the first point of view and interact with objects in their surroundings naturally. Thus, the object of research in this study is recognition accuracy of fiducial markers in zones where ultra-wide angle camera distort the most. This is motivated by the need to increase user workspace for interaction with markers compare to the work

APA, Harvard, Vancouver, ISO, and other styles

6

Penshin, I. N. "Application of a spherical camera model for solving photogrammetric tasks." Geodesy and Cartography 997, no. 7 (2023): 38–46. http://dx.doi.org/10.22389/0016-7126-2023-997-7-38-46.

Full text

Abstract:

In this paper, we consider the Unified Camera Model and its properties, as well as investigate and apply the improved Double-Spherical one (DS-model) in the task of restoring exterior and interior orientation elements for a set of images with ultra-wide-angle fisheye lens. The use of panoramic cameras in photogrammetry issues is a new trend, while the spherical model fully inherits the properties of the classical central-projection sample. The mathematical concept of using it is presented, as well as the solution of the optimization problem of calculating the elements of the internal and exter

APA, Harvard, Vancouver, ISO, and other styles

7

Takahashi, Tadayuki, Shin'ichiro Takeda, and Shin Watanabe. "1 Visualization of Radioactive Substances with an Ultra-wide Angle Compton Camera." Journal of the Institute of Image Information and Television Engineers 67, no. 3 (2013): 197–201. http://dx.doi.org/10.3169/itej.67.197.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Chen, Yichao, Fu-yu Huang, Feng-ming Shi, Bing-qi Liu, and Hao Yu. "Plane chessboard-based calibration method for a LWIR ultra-wide-angle camera." Applied Optics 58, no. 4 (2019): 744. http://dx.doi.org/10.1364/ao.58.000744.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Wang, Ziang, Bingqi Liu, Fuyu Huang, Yichao Chen, Shuai Zhang, and Yue Cheng. "Corners positioning for binocular ultra-wide angle long-wave infrared camera calibration." Optik 206 (March 2020): 163441. http://dx.doi.org/10.1016/j.ijleo.2019.163441.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Birukov, Elissey D., Boris Kh Barladyan, Lev Z. Shapiro, Ildar V. Valiev, and Alexei G. Voloboy. "Modelling and Verification of Car Rear View Camera Using Ray Optics Algorithms." Light & Engineering, no. 02-2024 (April 2024): 55–62. http://dx.doi.org/10.33383/2023-080.

Full text

Abstract:

Rear view cameras are widely used in the automotive industry. They are used in modern car navigation systems to improve the driver’s perception of the situation behind the car. Ultra-wide-angle fisheye lenses are installed on the car for maximum coverage. But such images are not comfortable for human perception. Therefore, one of the main problems in using such cameras is fast algorithms for converting fisheye images into a set of images corresponding to wide-angle and normal virtual cameras, as well as constructing a “top view”. This work examines two image transformation algorithms, both of

APA, Harvard, Vancouver, ISO, and other styles

11

Irawanto, Zulis, I. Made Ariana, and Erwandi Erwandi. "Low-Cost Ultra Wide-Angle Camera for Motion Tracking in Ship Maneuvering Experiments." International Journal on Engineering Applications (IREA) 11, no. 2 (2023): 89. http://dx.doi.org/10.15866/irea.v11i2.23318.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Zhu, Yong Jian, Jing Xin Na, Jian Feng Sun, and Shao Hui Yin. "Ultra-Wide Car Lens Optimization Based on Low-Tg Aspheric Glass." Advanced Materials Research 497 (April 2012): 230–34. http://dx.doi.org/10.4028/www.scientific.net/amr.497.230.

Full text

Abstract:

Car camera lens is widely used for the safety system of all kinds of vehicles. The car lens should have very wide field angle, strong ability to endure vibration and thermo-mechanical instability as well as erosion. According to these requirements, a new car lens is designed based on the aspheric glass lenses. The whole structure of car lens contains six separated glass lenses including two aspheric lenses. To reduce the cost, the aspheric lenses are made from low-Tg glass which is adaptable for mass production by glass molding press. The total track of lens is less than 30mm. For the enhancem

APA, Harvard, Vancouver, ISO, and other styles

13

Gašparović, M., and D. Gajski. "TWO-STEP CAMERA CALIBRATION METHOD DEVELOPED FOR MICRO UAV'S." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 6, 2016): 829–33. http://dx.doi.org/10.5194/isprs-archives-xli-b1-829-2016.

Full text

Abstract:

The development of unmanned aerial vehicles (UAVs) and continuous price reduction of unmanned systems attracted us to this research. Professional measuring systems are dozens of times more expensive and often heavier than "amateur", non-metric UAVs. For this reason, we tested the DJI Phantom 2 Vision Plus UAV. Phantom’s smaller mass and velocity can develop less kinetic energy in relation to the professional measurement platforms, which makes it potentially less dangerous for use in populated areas. In this research, we wanted to investigate the ability of such non-metric UAV and find the proc

APA, Harvard, Vancouver, ISO, and other styles

14

Gašparović, M., and D. Gajski. "TWO-STEP CAMERA CALIBRATION METHOD DEVELOPED FOR MICRO UAV'S." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 6, 2016): 829–33. http://dx.doi.org/10.5194/isprsarchives-xli-b1-829-2016.

Full text

Abstract:

The development of unmanned aerial vehicles (UAVs) and continuous price reduction of unmanned systems attracted us to this research. Professional measuring systems are dozens of times more expensive and often heavier than "amateur", non-metric UAVs. For this reason, we tested the DJI Phantom 2 Vision Plus UAV. Phantom’s smaller mass and velocity can develop less kinetic energy in relation to the professional measurement platforms, which makes it potentially less dangerous for use in populated areas. In this research, we wanted to investigate the ability of such non-metric UAV and find the proc

APA, Harvard, Vancouver, ISO, and other styles

15

Zhi, Zheng, Hongsong Qu, Shuping Tao, Liangliang Zheng, Shipeng Ying, and Heqian Zhu. "The Design of Cone and Pendulum Scanning Mode Using Dual-Camera with Multi-Dimensional Motion Imaging Micro-Nanosatellite." Remote Sensing 14, no. 18 (2022): 4613. http://dx.doi.org/10.3390/rs14184613.

Full text

Abstract:

This paper focuses on the design of a new optical cone and pendulum scanning imaging mode for micro-nanosatellites. This kind of satellite uses a high-resolution camera with a small imaging plane to achieve high-resolution and ultra-wide coverage imaging through the three-dimensional motion of the camera’s wobble, satellite spin, and satellite orbital motion. First, this paper designs a single-camera constant speed OCPSI (optical cone and pendulum scanning imaging) mode. On the premise of ensuring coverage, the motion parameters and imaging parameters are derived. Then, in order to improve the

APA, Harvard, Vancouver, ISO, and other styles

16

Parrill, Joanne Levine, Jerome B. Cohen, and Yip-Wah Chung. "Ultra-High Vacuum Grazing Incidence Small Angle X-Ray Scattering Camera for in Situ Surface Analysis." Advances in X-ray Analysis 37 (1993): 413–18. http://dx.doi.org/10.1154/s0376030800015937.

Full text

Abstract:

AbstractAn ultra-high vacuum chamber designed for in situ grazing incidence small angle x-ray scattering (GISAXS) surface analysis is described. Unique features of this equipment are the precision rotary feedthrough for angular alignment of the sample, the sample heating design, the Be window arrangement, and the compatibility of this chamber with both a rotating anode and a synchrotron beamline. This chamber was used as part of a GISAXS camera utilizing a 18 kW Rigaku rotating anode, pin-hole collimation, and a position sensitive detector. The resolution of this camera was 0.007 A-1 with a 1.

APA, Harvard, Vancouver, ISO, and other styles

17

Qiu Zhenwei, 裘桢炜, 洪津 Hong Jin, 李双 Li Shuang, and 孙亮 Sun Liang. "Methods to Simultaneously Achieve Radiometric and Polarimetric Accuracy for Multichannel Ultra-Wide-Angle Polarimetric Camera." Acta Optica Sinica 33, no. 8 (2013): 0828003. http://dx.doi.org/10.3788/aos201333.0828003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Wang, Ziang, Bingqi Liu, Fuyu Huang, Yichao Chen, and Shuai Zhang. "Stereo calibration of binocular ultra-wide angle long-wave infrared camera based on an equivalent small field of view camera." Journal of Modern Optics 67, no. 4 (2020): 297–306. http://dx.doi.org/10.1080/09500340.2019.1697834.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Zhang, Bao Long, Shao Jing Zhang, Wei Qi Ding, and Hui Shuang Shi. "Fisheye Lens Distortion Calibration Based on the Lens Charactetic Curves." Applied Mechanics and Materials 519-520 (February 2014): 636–39. http://dx.doi.org/10.4028/www.scientific.net/amm.519-520.636.

Full text

Abstract:

The fisheye lens is a kind of ultra wide angle lens, which can produce a big super-wide-angle lens distortion. In order to cover a large scope of light, barrel distortion is artificially added to the optical system. However, in some cases this distortion is not allowed, then it requires calibrations of those distortions. Most of the traditional distortion calibration method uses target plane calibration to do it. This paper discusses the way of design fisheye lens, through which we can know the forming process of distortion clearly. Based on this paper, a simple and effective calibration metho

APA, Harvard, Vancouver, ISO, and other styles

20

da Silva, Rebeca Campos Emiliano, Antonio Maria Garcia Tommaselli, Nilton Nobuhiro Imai, Rorai Pereira Martins-Neto, Daniel da Silva da Silveira, and Edemar Moro. "Dry mass grassland estimation using UAV ultra-wide RGB images." ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences X-3-2024 (November 4, 2024): 69–75. http://dx.doi.org/10.5194/isprs-annals-x-3-2024-69-2024.

Full text

Abstract:

Abstract. Dry mass is an important parameter to optimise grassland management. Traditionally, dry mass values are estimated manually by cutting, drying, and weighing vegetation samples. In large areas of cultivation, this becomes a time-consuming and costly activity. In recent years, many researchers have studied different sensors embedded in Unmanned Aerial Vehicles (UAV) to collect spatial data and estimate biomass using machine learning algorithms for forest and agricultural applications. However, there needs to be more research dealing with estimating production indices for pasture, especi

APA, Harvard, Vancouver, ISO, and other styles

21

Lai, Jhe-Syuan, Yu-Chi Peng, Min-Jhen Chang, and Jun-Yi Huang. "Panoramic Mapping with Information Technologies for Supporting Engineering Education: A Preliminary Exploration." ISPRS International Journal of Geo-Information 9, no. 11 (2020): 689. http://dx.doi.org/10.3390/ijgi9110689.

Full text

Abstract:

The present researchers took multistation-based panoramic images and imported the processed images into a virtual tour platform to create webpages and a virtual reality environment. The integrated multimedia platform aims to assist students in a surveying practice course. A questionnaire survey was conducted to evaluate the platform’s usefulness to students, and its design was modified according to respondents’ feedback. Panoramic photos were taken using a full-frame digital single-lens reflex camera with an ultra-wide-angle zoom lens mounted on a panoramic instrument. The camera took photos a

APA, Harvard, Vancouver, ISO, and other styles

22

RICCI, M. "THE JEM-EUSO MISSION: OBSERVATION OF ULTRA-HIGH ENERGY COSMIC RAYS FROM SPACE." International Journal of Modern Physics: Conference Series 23 (January 2013): 329–34. http://dx.doi.org/10.1142/s2010194513011574.

Full text

Abstract:

The Extreme Universe Space Observatory on Japanese Experiment Module (JEM-EUSO) is a science mission planned to be launched in 2017 to the International Space Station (ISS) to investigate the nature and origin of Ultra High Energy Cosmic Rays (UHECR) beyond energy 3 × 1019 eV. JEM-EUSO is a wide-angle telescope (60 degrees full field of view) and consists of a high-transmittance Fresnel lenses 2.5 m in diameter, an advanced photo-sensitive detector at the focal surface and a suitable electronics. An infrared camera and a LIDAR system will also be used to monitor the Earth's atmosphere and prov

APA, Harvard, Vancouver, ISO, and other styles

23

Nagasawa, Toshihiko, Hitoshi Tabuchi, Hiroki Masumoto, et al. "Accuracy of deep learning, a machine learning technology, using ultra-wide-field fundus ophthalmoscopy for detecting idiopathic macular holes." PeerJ 6 (October 22, 2018): e5696. http://dx.doi.org/10.7717/peerj.5696.

Full text

Abstract:

We aimed to investigate the detection of idiopathic macular holes (MHs) using ultra-wide-field fundus images (Optos) with deep learning, which is a machine learning technology. The study included 910 Optos color images (715 normal images, 195 MH images). Of these 910 images, 637 were learning images (501 normal images, 136 MH images) and 273 were test images (214 normal images and 59 MH images). We conducted training with a deep convolutional neural network (CNN) using the images and constructed a deep-learning model. The CNN exhibited high sensitivity of 100% (95% confidence interval CI [93.5

APA, Harvard, Vancouver, ISO, and other styles

24

Zhang, Xufeng, Peng Wang, Wu Xue, and Xian Liu. "Geometric Calibration of Parameters in the Perpendicular-Orbit Circular Scanning Satellite Camera." Remote Sensing 17, no. 3 (2025): 472. https://doi.org/10.3390/rs17030472.

Full text

Abstract:

Perpendicular-orbit circular scanning satellites overcome the conflict between ground resolution and width observed in traditional optical satellites by using a perpendicular-orbit circular scanning imaging method and splicing along the orbit, achieving a balance between an ultra-large width and a high resolution. However, laboratory calibrations of perpendicular-orbit circular scanning satellites exhibit large errors due to the influence of factors such as the thermal and mechanical environment of space during the launch and operation of satellites, and thus, they cannot be applied. In this p

APA, Harvard, Vancouver, ISO, and other styles

25

Werner, K., K. Bagschik, T. Rauch, and R. Napiwotzki. "A search for Planetary Nebulae around hot white dwarfs." Symposium - International Astronomical Union 180 (1997): 393–94. http://dx.doi.org/10.1017/s0074180900131559.

Full text

Abstract:

Time scales for post-AGB stellar evolution are still unclear. In order to study them it is useful to look for old PNe and compare nebula expansion and stellar evolutionary ages. We have selected very hot members from different white dwarf sub-classes. Many of them are objects recently discovered in the Hamburg-Schmidt Survey (Hagen et al. 1995). The sample includes three peculiar objects whose spectra show signatures of an extremely hot wind (≈ 106 K), namely absorption lines of ultra-high ionized metals, e.g. O VIII (Werner et al. 1995). A complete list is given in the table below. The search

APA, Harvard, Vancouver, ISO, and other styles

26

Wang, Zhanchao, Min Huang, Lulu Qian, et al. "Near-Space Wide-Area and High-Resolution Imaging System Design and Implementation." Sensors 23, no. 14 (2023): 6454. http://dx.doi.org/10.3390/s23146454.

Full text

Abstract:

The near-space atmosphere is thin, and the atmospheric refraction and scattering on optical observation is very small, making it very suitable for wide-area and high-resolution surveillance using high-altitude balloon platforms. This paper adopts a 9344 × 7000 CMOS sensor to obtain high-resolution images, generating large-field-of-view imaging through the swing scanning of the photoelectric sphere and image stitching. In addition, a zoom lens is designed to achieve flexible applications for different scenarios, such as large-field-of-view and high-resolution imaging. The optical design results

APA, Harvard, Vancouver, ISO, and other styles

27

Samala, Agariadne Dwinggo, Fadhli Ranuharja, Bayu Ramadhani Fajri, Yose Indarta, and Winda Agustiarmi. "ViCT—Virtual Campus Tour Environment with Spherical Panorama: A Preliminary Exploration." International Journal of Interactive Mobile Technologies (iJIM) 16, no. 16 (2022): 205–25. http://dx.doi.org/10.3991/ijim.v16i16.32889.

Full text

Abstract:

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 resea

APA, Harvard, Vancouver, ISO, and other styles

28

Veselov, V. V., A. M. Nechipai, E. A. Poltoryhina, and A. V. Vasilchenko. "FIRST EXPERIENCE IN FULL-SPECTRUM COLONOSCOPY." Koloproktologia, no. 2 (June 30, 2017): 36–46. http://dx.doi.org/10.33878/2073-7556-2017-0-2-36-46.

Full text

Abstract:

Colonoscopy with a forward-viewing camera leaves regions that are not visualized in detail. Thus development of video-enoscopy systems with wide angle of view is needed. Full-spectrum colonoscopes providing image of Ultra HD 4K quality are now available in Russia. MATERIALS AND METHODS. Seventy patents were assessed with a full-spectrum colonoscope. In 51 (72,8°%) of them the procedure was performed also for physician's training purposes. Fifteen (21,4%) patients underwent simultaneous full-spectrum and forward-viewing colonoscopies, while in 4 (5,7%) full-spectrum endoscope was used to visual

APA, Harvard, Vancouver, ISO, and other styles

29

Kaneko, Hiroki, Eimei Ra, Kenichi Kawano, et al. "Surgical Videos with Synchronised Vertical 2-Split Screens Recording the Surgeons' Hand Movement." Ophthalmologica 234, no. 4 (2015): 243–46. http://dx.doi.org/10.1159/000439119.

Full text

Abstract:

Purpose: To improve the state-of-the-art teaching system by creating surgical videos with synchronised vertical 2-split screens. Methods: An ultra-compact, wide-angle point-of-view camcorder (HX-A1, Panasonic) was mounted on the surgical microscope focusing mostly on the surgeons' hand movements. In combination with the regular surgical videos obtained from the CCD camera in the surgical microscope, synchronised vertical 2-split-screen surgical videos were generated with the video-editing software. Results: Using synchronised vertical 2-split-screen videos, residents of the ophthalmology depar

APA, Harvard, Vancouver, ISO, and other styles

30

Dos Anjos Souza, Diego, Maricelma Simiano Jung, and Rodrigo Ávila Mendonça. "Copulation record of Tropidurus imbituba (Squamata: Tropiduridae)." Acta Biológica Catarinense 11, no. 1 (2024): 14–18. http://dx.doi.org/10.21726/abc.v11i1.2139.

Full text

Abstract:

Tropidurus imbituba is a lizard with endemic distribution. Data on the species are scarce as it is a new species and has the only known habitat to date. Understanding reproductive aspects is important for their conservation. Thus, the present study presents the first records of the courtship and copulation behavior of T. imbituba. Sampling was carried out in spring 2022 and summer 2023, between September 24, 2022 and March 19, 2023. Monitoring was adapted from the Squamata Reptile Monitoring Protocol in Federal Conservation Units of the Caatinga Biome, following the active search method withou

APA, Harvard, Vancouver, ISO, and other styles

31

Xin, Li-Ping, Hua-li Li, Jing Wang, et al. "A huge-amplitude white-light superflare on a L0 brown dwarf discovered by GWAC survey." Monthly Notices of the Royal Astronomical Society 527, no. 2 (2023): 2232–39. http://dx.doi.org/10.1093/mnras/stad960.

Full text

Abstract:

ABSTRACT White-light superflares from ultra-cool stars are thought to be resulted from magnetic reconnection, but the magnetic dynamics in a fully convective star is not clear yet. In this paper, we report a stellar superflare detected with the ground wide angle camera (GWAC), along with rapid follow-ups with the F60A, Xinglong 2.16-m, and LCOGT telescopes. The effective temperature of the counterpart is estimated to be 2200 ± 50 K by the BT-Settl model, corresponding to a spectral type of L0. The R-band light curve can be modelled as a sum of three exponential decay components, where the impu

APA, Harvard, Vancouver, ISO, and other styles

32

Samy, Ahmed Mahmoud, and Zhishan Gao. "Fovea-stereographic: a projection function for ultra-wide-angle cameras." Optical Engineering 54, no. 4 (2015): 045104. http://dx.doi.org/10.1117/1.oe.54.4.045104.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Ando, Yoshinobu, Takashi Tsubouchi, and Shin’ichi Yuta. "Development of Ultra-Wide-Angle Laser Range Sensor and Navigation of a Mobile Robot in a Corridor Environment." Journal of Robotics and Mechatronics 11, no. 1 (1999): 25–32. http://dx.doi.org/10.20965/jrm.1999.p0025.

Full text

Abstract:

The present authors developed a laser range sensor with an ultra-wide view angle and a navigation scheme for a mobile robot to move along a corridor. Although the range sensor uses orthodox triangulation in measurement, the detectable angle is extended to 260 degrees. This ultra-wide-angle sensor consists of 5 laser fan beam projectors and 3 CCD cameras. All fan beams from laser projectors are aligned in one plane parallel to the floor, and beam reflections on objects are detected by CCD cameras with super-wide-angle lenses. This paper presents schemes for obtaining range data with the sensor

APA, Harvard, Vancouver, ISO, and other styles

34

Tsai, Chun-Ming, and Frank Y. Shih. "An Efficient Image Stitching Method for Heterogeneous Car Videos Based on Bounding Boxes of Features." International Journal of Pattern Recognition and Artificial Intelligence 31, no. 05 (2017): 1755008. http://dx.doi.org/10.1142/s0218001417550084.

Full text

Abstract:

Heterogeneous car video recorders can capture scene information with different modalities including viewing angles, resolutions, and lens sensors. Traditional methods cannot accurately perform image stitching on the images captured by heterogeneous cameras. This paper presents an efficient method to stitch heterogeneous images by allowing a driver to view an ultra-wide angle without blind spots. It extracts bounding boxes of brake lights and license plate numbers as feature points to be matched. A homography matrix is computed to stitch the heterogeneous video images. Experimental results show

APA, Harvard, Vancouver, ISO, and other styles

35

Toulouse, Andrea, Johannes Drozella, Pascal Motzfeld, et al. "Ultra-compact 3D-printed wide-angle cameras realized by multi-aperture freeform optical design." Optics Express 30, no. 2 (2022): 707. http://dx.doi.org/10.1364/oe.439963.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Nakamoto, Rikuto, Sota Shimizu, Tetsuya Oda, Yosuke Noguchi, Alessandro Carfi, and Fulvio Mastrogiovanni. "Calibration Method for Ultra-Wide-Angle Cameras based on Extensive Correction Lookup Tables Taking into Account Color Aberrations." Journal of the Robotics Society of Japan 42, no. 8 (2024): 793–96. http://dx.doi.org/10.7210/jrsj.42.793.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Komoriya, Kiyoshi. "Special Issue on Mobile Robot." Journal of Robotics and Mechatronics 11, no. 1 (1999): 1. http://dx.doi.org/10.20965/jrm.1999.p0001.

Full text

Abstract:

Mobility, or locomotion, is as important a function for robots as manipulation. A robot can enlarge its work space by locomotion. It can also recognize its environment well with its sensors by moving around and by observing its surroundings from various directions. Much researches has been done on mobile robots and the research appears to be mature. Research activity on robot mobility is still very active; for example, 22% of the sessions at ICRA'98 - the International Conference on Robotics and Automation - and 24% of the sessions at IROS'98 - the International Conference on Intelligent Robot

APA, Harvard, Vancouver, ISO, and other styles

38

Kim, Hyungtae, and Joonki Paik. "Minimizing Optical Attribute Errors for Lane Departure Warning System Using Ultra-Wide Angle Camera." Journal of the Optical Society of America A, March 25, 2024. http://dx.doi.org/10.1364/josaa.495368.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

КУЛЯС, О. Л., and А. С. ЛОШКАРЕВ. "MONITORING THE LONGITUDINAL POSITION OF A VIDEO CAMERA DURING TELEVISION INSPECTION OF THE INTERNAL SURFACE OF PIPES." Приборы и системы. Управление, контроль, диагностика, no. 1 (January 28, 2024). http://dx.doi.org/10.25791/pribor.1.2024.1465.

Full text

Abstract:

Рассматривается метод вычисления продольного положения видеокамеры со сверхширокоугольной оптической системой типа «Fisheye», которая перемещается в трубе с целью автоматизированного контроля качества внутренней поверхности. Необходимость определения положения камеры связана с решением задачи определения координат обнаруженных дефектов. Метод реализован без усложнения аппаратной части системы и основан на цифровой обработке изображений, формируемых видеокамерой. A method is considered for calculating the longitudinal position of a video camera with an ultra-wide-angle optical system of the "Fi

APA, Harvard, Vancouver, ISO, and other styles

40

Tsubaki, Ryota, and Runye Zhu. "Optical Ortho-Rectification for Image-Based Stream Surface Flow Observations Using a Ground Camera." Frontiers in Water 3 (September 7, 2021). http://dx.doi.org/10.3389/frwa.2021.700946.

Full text

Abstract:

Image-based stream flow observation consists of three components: (i) image acquisition, (ii) ortho-rectification, and (iii) an image-based velocity estimation. Ortho-rectification is a type of coordinate transformation. When ortho-rectifying a raster image, pixel interpolation is needed and causes the degradation of image resolution, especially in areas located far from the camera and in the direction parallel to the viewing angle. When measuring the water surface flow of rivers with a wide channel width, reduced and distorted image resolution limits the applicability of image-based flow obse

APA, Harvard, Vancouver, ISO, and other styles

41

Vigano, Giorgio, Gert H. ten Brink, Max Groenendijk, et al. "Laser texturing of a St. Jude Medical RegentTM mechanical heart valve prosthesis: the proof of concept." Interactive CardioVascular and Thoracic Surgery, July 19, 2021. http://dx.doi.org/10.1093/icvts/ivab185.

Full text

Abstract:

Abstract OBJECTIVES The liquid–solid interactions have attracted broad interest since solid surfaces can either repel or attract fluids, configuring a wide spectrum of wetting states (from superhydrophilicity to superhydrophobicity). Since the blood–artificial surface interaction of bileaflet mechanical heart valves essentially represents a liquid–solid interaction, we analysed the thrombogenicity of mechanical heart valve prostheses from innovative perspectives. The aim of the present study was to modify the surface wettability of standard St. Jude Medical Regent™ occluders. METHODS Four pyro

APA, Harvard, Vancouver, ISO, and other styles

42

Wu, Kunlun, Haifeng Sang, Yanhao Xing, and Yao Lu. "Design of wireless in-pipe inspection robot for image acquisition." Industrial Robot: the international journal of robotics research and application, August 23, 2022. http://dx.doi.org/10.1108/ir-02-2022-0043.

Full text

Abstract:

Purpose Pipeline robots are often used in pipeline non-destructive testing. Given the need for long-range in-pipe inspections, this study aims to develop a wireless in-pipe inspection robot for image acquisition. Design/methodology/approach In this paper, an in-pipe robot with a new mechanical system is proposed. This system combines a three-arm load-bearing structure with spring sleeves and a half-umbrella diametric change structure, which can ensure the stability of the camera when acquiring images while maintaining the robot’s flexibility. In addition, data were transmitted wirelessly via a

APA, Harvard, Vancouver, ISO, and other styles

43

Zha, Kan, Radu-Catalin Florea, and Marcis Jansons. "Soot Evolution With Cyclic Crank-Angle-Resolved Two-Color Thermometry in an Optical Diesel Engine Fueled With Biodiesel Blend and ULSD." Journal of Engineering for Gas Turbines and Power 134, no. 9 (2012). http://dx.doi.org/10.1115/1.4006710.

Full text

Abstract:

Biodiesel is a desirable alternative fuel for the diesel engine due to its low engine-out soot emission tendency. When blended with petroleum-based diesel fuels, soot emissions generally decrease in proportion to the volume fraction of biodiesel in the mixture. While comparisons of engine-out soot measurements between biodiesel blends and petroleum-based diesel have been widely reported, in-cylinder soot evolution has not been experimentally explored to the same extent. To elucidate the soot emission reduction mechanism of biodiesel, a single-cylinder optically-accessible diesel engine was use

APA, Harvard, Vancouver, ISO, and other styles

44

"Measurement of characteristics and assessment of the capabilities of cameras with ultra-wide angle optics." Physics of Wave Processes and Radio Systems, March 31, 2020. http://dx.doi.org/10.18469/1810-3189.2020.23.1.89-99.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

sprotocols. "Biofunctionalization of PDMS-based microfluidic systems." January 18, 2015. https://doi.org/10.5281/zenodo.14013.

Full text

Abstract:

Authors: Bergoi Ibarlucea, Cesar Fernández-Sánchez, Stefanie Demming, Stephanus Büttgenbach & Andreu Llobera ### Abstract Three simple approaches for the selective immobilization of biomolecules on the surface of poly(dimethylsiloxane) (PDMS) microfluidic systems that do not require any specific instrumentation, are described and compared. They are based in the introduction of hydroxyl groups on the PDMS surface by direct adsorption of either polyethylene glycol (PEG) or polyvinyl alcohol (PVA) as well as by a liquid-based oxidation step. The hydroxyl groups are then silanized using a sila

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!