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Journal articles on the topic 'Stereoscopic cameras'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Chiu, Chuang-Yuan, Michael Thelwell, Terry Senior, Simon Choppin, John Hart, and Jon Wheat. "Comparison of depth cameras for three-dimensional reconstruction in medicine." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 233, no. 9 (2019): 938–47. http://dx.doi.org/10.1177/0954411919859922.

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KinectFusion is a typical three-dimensional reconstruction technique which enables generation of individual three-dimensional human models from consumer depth cameras for understanding body shapes. The aim of this study was to compare three-dimensional reconstruction results obtained using KinectFusion from data collected with two different types of depth camera (time-of-flight and stereoscopic cameras) and compare these results with those of a commercial three-dimensional scanning system to determine which type of depth camera gives improved reconstruction. Torso mannequins and machined alumi

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Jia, Chen Yu, Ze Hua Gao, Xun Bo Yu, Xin Zhu Sang, and Tian Qi Zhao. "Auto-Stereoscopic 3D Video Conversation System Based on an Improved Eye Tracking Method." Applied Mechanics and Materials 513-517 (February 2014): 3907–10. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.3907.

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An auto-stereoscopic 3D video conversation system is demonstrated with an improved eye-tracking method based on a lenticular sheet and two cameras. The two cameras are used to get stereoscopic picture pairs and addressed the viewers position by an Improved Eye Tracking Method. The computer combines the stereoscopic picture pairs with different masks graphic processing unit. Low crosstalk correct stereoscopic video pairs for the end-to-end commutation are achieved.

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Novac, Petr, Vladimír Mostýn, Tomáš Kot, and Václav Krys. "Stereoscopic System with the Tight Tilted Cameras." Applied Mechanics and Materials 332 (July 2013): 154–64. http://dx.doi.org/10.4028/www.scientific.net/amm.332.154.

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Thispaper describes a stereoscopic camera system based on a pair of separate cameras.The cameras are stationary and tilted together. The value of their tiltingangle is derived in regards to their maximal possible utilization of the chiparea with the minimalizing unused parts. It can increase the size of the croppedimage of both left and right images as well as their resolution. The resultswere tested and verified on a real stereoscopic system used for the exploratory, emergency and rescue mobile robots Hercules, Ares and Hardy.

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Rovira-Más, Francisco, Qi Wang, and Qin Zhang. "Bifocal Stereoscopic Vision for Intelligent Vehicles." International Journal of Vehicular Technology 2009 (March 29, 2009): 1–9. http://dx.doi.org/10.1155/2009/123231.

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The numerous benefits of real-time 3D awareness for autonomous vehicles have motivated the incorporation of stereo cameras to the perception units of intelligent vehicles. The availability of the distance between camera and objects is essential for such applications as automatic guidance and safeguarding; however, a poor estimation of the position of the objects in front of the vehicle can result in dangerous actions. There is an emphasis, therefore, in the design of perception engines that can make available a rich and reliable interval of ranges in front of the camera. The objective of this

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Lavrushkin, Sergey, Ivan Molodetskikh, Konstantin Kozhemyakov, and Dmitriy Vatolin. "Stereoscopic quality assessment of 1,000 VR180 videos using 8 metrics." Electronic Imaging 2021, no. 2 (2021): 350–1. http://dx.doi.org/10.2352/issn.2470-1173.2021.2.sda-350.

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In this work we present a large-scale analysis of stereoscopic quality for 1,000 VR180 YouTube videos. VR180 is a new S3D format for VR devices which stores the view for only a single hemisphere. Instead of a multi-camera rig, this format requires just two cameras with fisheye lenses similar to conventional 3D-shooting, resulting in cost reduction of the final device and simplification of the shooting process. But as in the conventional stereoscopic format, VR180 videos suffer from stereoscopyrelated problems specific to 3D shooting. In this paper we analyze videos to detect the most common st

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Choi, Sung-In, and Soon-Yong Park. "DOF Correction of Heterogeneous Stereoscopic Cameras." Journal of the Institute of Electronics and Information Engineers 51, no. 7 (2014): 169–79. http://dx.doi.org/10.5573/ieie.2014.51.7.169.

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Birnbaum, Faith A., Aaron Wang, and Christopher J. Brady. "Stereoscopic Surgical Recording Using GoPro Cameras." JAMA Ophthalmology 133, no. 12 (2015): 1483. http://dx.doi.org/10.1001/jamaophthalmol.2015.3865.

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Jeon, Minkyung, Jinhong Park, Jin-Woo Kim, and Sungmin Woo. "Triple-Camera Rectification for Depth Estimation Sensor." Sensors 24, no. 18 (2024): 6100. http://dx.doi.org/10.3390/s24186100.

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In this study, we propose a novel rectification method for three cameras using a single image for depth estimation. Stereo rectification serves as a fundamental preprocessing step for disparity estimation in stereoscopic cameras. However, off-the-shelf depth cameras often include an additional RGB camera for creating 3D point clouds. Existing rectification methods only align two cameras, necessitating an additional rectification and remapping process to align the third camera. Moreover, these methods require multiple reference checkerboard images for calibration and aim to minimize alignment e

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Sommer, Bjorn. "Hybrid Stereoscopic Photography - Analogue Stereo Photography meets the Digital Age with the StereoCompass app." Electronic Imaging 2021, no. 2 (2021): 58–1. http://dx.doi.org/10.2352/issn.2470-1173.2021.2.sda-058.

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Stereoscopic photography has a long history which started just a few years after the first known photo was taken: 1849 Sir David Brewster introduced the first binocular camera. Whereas mobile photography is omnipresent because of the wide distribution of smart phones, stereoscopic photography is only used by a very small set of enthusiasts or professional (stereo) photographers. One important aspect of professional stereoscopic photography is that the required technology is usually quite expensive. Here, we present an alternative approach, uniting easily affordable vintage analogue SLR cameras

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Rzeszotarski, Dariusz, and Paweł Pełczyński. "Software Application for Calibration of Stereoscopic Camera Setups." Metrology and Measurement Systems 19, no. 4 (2012): 805–16. http://dx.doi.org/10.2478/v10178-012-0072-1.

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Abstract The article describes an application for calibration of a stereovision camera setup constructed for the needs of an electronic travel aid for the blind. The application can be used to calibrate any stereovision system consisting of two DirectShow compatible cameras using a reference checkerboard of known dimensions. A method for experimental verification of the correctness of the calibration is also presented. The developed software is intended for calibration of mobile stereovision systems that focus mainly on obstacle detection.

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Peczyński, Paweł, and Bartosz Ostrowski. "Automatic Calibration of Stereoscopic Cameras in an Electronic Travel Aid for the Blind." Metrology and Measurement Systems 20, no. 2 (2013): 229–38. http://dx.doi.org/10.2478/mms-2013-0020.

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Abstract The article describes a technique developed for identification of extrinsic parameters of a stereovision camera system for the purpose of image rectification without the use of reference calibration objects. The goal of the presented algorithm is the determination of the mutual position of cameras, under the assumption that they can be modeled by pinhole cameras, are separated by a fixed distance and are moving through a stationary scene. The developed method was verified experimentally on image sequences of a scene with a known structure.

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Garg, Sunir. "Stereoscopic Surgical Recording Using GoPro Cameras—Reply." JAMA Ophthalmology 133, no. 12 (2015): 1484. http://dx.doi.org/10.1001/jamaophthalmol.2015.3879.

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Wang, Mi, Beibei Guo, Ying Zhu, Yufeng Cheng, and Chenhui Nie. "On-Orbit Calibration Approach Based on Partial Calibration-Field Coverage for the GF-1/WFV Camera." Photogrammetric Engineering & Remote Sensing 85, no. 11 (2019): 815–27. http://dx.doi.org/10.14358/pers.85.11.815.

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The Gaofen-1 (GF1) optical remote sensing satellite is the first in China's series of high-resolution civilian satellites and is equipped with four wide-field-of-view cameras. The cameras work together to obtain an image 800 km wide, with a resolution of 16 m, allowing GF1 to complete a global scan in four days. To achieve high-accuracy calibration of the wide-field-of-view cameras on GF1, the calibration field should have high resolution and broad coverage based on the traditional calibration method. In this study, a GF self-calibration scheme was developed. It uses partial reference calibrat

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Lee, ChaBum, and Xiangyu Guo. "Spatially resolved stereoscopic surface profiling by using a feature-selective segmentation and merging technique." Surface Topography: Metrology and Properties 10, no. 1 (2022): 014002. http://dx.doi.org/10.1088/2051-672x/ac5998.

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Abstract We present a feature-selective segmentation and merging technique to achieve spatially resolved surface profiles of the parts by 3D stereoscopy and strobo-stereoscopy. A pair of vision cameras capture images of the parts at different angles, and 3D stereoscopic images can be reconstructed. Conventional filtering processes of the 3D images involve data loss and lower the spatial resolution of the image. In this study, the 3D reconstructed image was spatially resolved by automatically recognizing and segmenting the features on the raw images, locally and adaptively applying super-resolu

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Marzi, Christian, Andreas Wachter, and Werner Nahm. "Design of an experimental four-camera setup for enhanced 3D surface reconstruction in microsurgery." Current Directions in Biomedical Engineering 3, no. 2 (2017): 539–42. http://dx.doi.org/10.1515/cdbme-2017-0185.

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AbstractFuture fully digital surgical visualization systems enable a wide range of new options. Caused by optomechanical limitations a main disadvantage of today’s surgical microscopes is their incapability of providing arbitrary perspectives to more than two observers. In a fully digital microscopic system, multiple arbitrary views can be generated from a 3D reconstruction. Modern surgical microscopes allow replacing the eyepieces by cameras in order to record stereoscopic videos. A reconstruction from these videos can only contain the amount of detail the recording camera system gathers from

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Lee, Cheon, Hyok Song, Byeongho Choi, and Yo-Sung Ho. "3D scene capturing using stereoscopic cameras and a time-of-flight camera." IEEE Transactions on Consumer Electronics 57, no. 3 (2011): 1370–76. http://dx.doi.org/10.1109/tce.2011.6018896.

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Balogh, Attila, Mark C. Preul, Mark Schornak, Michael Hickman, and Robert F. Spetzler. "Intraoperative stereoscopic QuickTime Virtual Reality." Journal of Neurosurgery 100, no. 4 (2004): 591–96. http://dx.doi.org/10.3171/jns.2004.100.4.0591.

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Object. The aim of this study was to acquire intraoperative images during neurosurgical procedures for later reconstruction into a stereoscopic image system (QuickTime Virtual Reality [QTVR]) that would improve visualization of complex neurosurgical procedures. Methods. A robotic microscope and digital cameras were used to acquire left and right image pairs during cranial surgery; a grid system facilitated image acquisition with the microscope. The surgeon determined a field of interest and a target or pivot point for image acquisition. Images were processed with commercially available softwar

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Gao, Zhi-Wei, Wen-Kuo Lin, Yu-Shian Shen, Chia-Yen Lin, and Wen-Chung Kao. "Design of signal processing pipeline for stereoscopic cameras." IEEE Transactions on Consumer Electronics 56, no. 2 (2010): 324–31. http://dx.doi.org/10.1109/tce.2010.5505935.

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Kim, Sung-Yeol, Eun-Kyung Lee, and Yo-Sung Ho. "Generation of ROI Enhanced Depth Maps Using Stereoscopic Cameras and a Depth Camera." IEEE Transactions on Broadcasting 54, no. 4 (2008): 732–40. http://dx.doi.org/10.1109/tbc.2008.2002338.

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Honkavaara, E., T. Hakala, O. Nevalainen, et al. "GEOMETRIC AND REFLECTANCE SIGNATURE CHARACTERIZATION OF COMPLEX CANOPIES USING HYPERSPECTRAL STEREOSCOPIC IMAGES FROM UAV AND TERRESTRIAL PLATFORMS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B7 (June 17, 2016): 77–82. http://dx.doi.org/10.5194/isprs-archives-xli-b7-77-2016.

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Light-weight hyperspectral frame cameras represent novel developments in remote sensing technology. With frame camera technology, when capturing images with stereoscopic overlaps, it is possible to derive 3D hyperspectral reflectance information and 3D geometric data of targets of interest, which enables detailed geometric and radiometric characterization of the object. These technologies are expected to provide efficient tools in various environmental remote sensing applications, such as canopy classification, canopy stress analysis, precision agriculture, and urban material classification. F

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Honkavaara, E., T. Hakala, O. Nevalainen, et al. "GEOMETRIC AND REFLECTANCE SIGNATURE CHARACTERIZATION OF COMPLEX CANOPIES USING HYPERSPECTRAL STEREOSCOPIC IMAGES FROM UAV AND TERRESTRIAL PLATFORMS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B7 (June 17, 2016): 77–82. http://dx.doi.org/10.5194/isprsarchives-xli-b7-77-2016.

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Light-weight hyperspectral frame cameras represent novel developments in remote sensing technology. With frame camera technology, when capturing images with stereoscopic overlaps, it is possible to derive 3D hyperspectral reflectance information and 3D geometric data of targets of interest, which enables detailed geometric and radiometric characterization of the object. These technologies are expected to provide efficient tools in various environmental remote sensing applications, such as canopy classification, canopy stress analysis, precision agriculture, and urban material classification. F

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Davies, Ross, Ian Wilson, and Andrew Ware. "Stereoscopic Human Detection in a Natural Environment." Annals of Emerging Technologies in Computing 2, no. 2 (2018): 15–23. http://dx.doi.org/10.33166/aetic.2018.02.002.

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The algorithm presented in this paper is designed to detect people in real-time from 3D footage for use in Augmented Reality applications. Techniques are discussed that hold potential for a detection system when combined with stereoscopic video capture using the extra depth included in the footage. This information allows for the production of a robust and reliable system. To utilise stereoscopic imagery, two separate images are analysed, combined and the human region detected and extracted. The greatest benefit of this system is the second image, which contains additional information to which

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Kozelov, B. V., S. V. Pilgaev, L. P. Borovkov, and V. E. Yurov. "Multi-scale auroral observations in Apatity: winter 2010–2011." Geoscientific Instrumentation, Methods and Data Systems Discussions 1, no. 1 (2011): 31–45. http://dx.doi.org/10.5194/gid-1-31-2011.

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Abstract. Routine observations of the aurora are conducted in Apatity by a set of five cameras: (i) all-sky TV camera Watec WAT-902K (1/2"CCD) with Fujinon lens YV2.2 × 1.4A-SA2; (ii) two monochromatic cameras Guppy F-044B NIR (1/2"CCD) with Fujinon HF25HA-1B (1:1.4/25 mm) lens for 18° field of view and glass filter 558 nm; (iii) two color cameras Guppy F-044C NIR (1/2"CCD) with Fujinon DF6HA-1B (1:1.2/6 mm) lens for 67° field of view. The observational complex is aimed at investigating spatial structure of the aurora, its scaling properties, and vertical distribution in the rayed forms. The c

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Kozelov, B. V., S. V. Pilgaev, L. P. Borovkov, and V. E. Yurov. "Multi-scale auroral observations in Apatity: winter 2010–2011." Geoscientific Instrumentation, Methods and Data Systems 1, no. 1 (2012): 1–6. http://dx.doi.org/10.5194/gi-1-1-2012.

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Abstract. Routine observations of the aurora are conducted in Apatity by a set of five cameras: (i) all-sky TV camera Watec WAT-902K (1/2"CCD) with Fujinon lens YV2.2 × 1.4A-SA2; (ii) two monochromatic cameras Guppy F-044B NIR (1/2"CCD) with Fujinon HF25HA-1B (1:1.4/25 mm) lens for 18° field of view and glass filter 558 nm; (iii) two color cameras Guppy F-044C NIR (1/2"CCD) with Fujinon DF6HA-1B (1:1.2/6 mm) lens for 67° field of view. The observational complex is aimed at investigating spatial structure of the aurora, its scaling properties, and vertical distribution in the rayed forms. The c

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Kim, Hak Gu, Minho Park, Sangmin Lee, Seongyeop Kim, and Yong Man Ro. "Visual Comfort Aware-Reinforcement Learning for Depth Adjustment of Stereoscopic 3D Images." Proceedings of the AAAI Conference on Artificial Intelligence 35, no. 2 (2021): 1762–70. http://dx.doi.org/10.1609/aaai.v35i2.16270.

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Depth adjustment aims to enhance the visual experience of stereoscopic 3D (S3D) images, which accompanied with improving visual comfort and depth perception. For a human expert, the depth adjustment procedure is a sequence of iterative decision making. The human expert iteratively adjusted the depth until he is satisfied with the both levels of visual comfort and the perceived depth. In this work, we present a novel deep reinforcement learning (DRL)-based approach for depth adjustment named VCA-RL (Visual Comfort Aware Reinforcement Learning) to explicitly model human sequential decision makin

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Szubert, Aleksander. "Stereoscopic Image Acquisition for Analysis and 3D Cameras Calibration." ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA 1, no. 12 (2016): 29–32. http://dx.doi.org/10.15199/13.2016.12.4.

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Tubaro, Stefano. "Letter a precise stereoscopic system with two video cameras." European Transactions on Telecommunications 3, no. 3 (1992): 275–80. http://dx.doi.org/10.1002/ett.4460030309.

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Nicholson, Paul T. "Three-dimensional imaging in archaeology: its history and future." Antiquity 75, no. 288 (2001): 402–9. http://dx.doi.org/10.1017/s0003598x00061056.

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Whilst digital cameras and computer graphics are starting to be used in archaeological recording, stereoscopic photography tends to be overlooked. This technique has been used successfully in three recent projects and could be beneficial as a means of 3D photographic recording.

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Madeira, Bruno Eduardo, and Luiz Velho. "Virtual Table-Teleporter: Image Processing and Rendering for Horizontal Stereoscopic Display." International Journal of Virtual Reality 12, no. 1 (2013): 30–43. http://dx.doi.org/10.20870/ijvr.2013.12.1.2856.

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We describe a new architecture composed of software and hardware for displaying stereoscopic images over a horizontal surface. It works as a ``Virtual Table and Teleporter'', in the sense that virtual objects depicted over a table have the appearance of real objects. This system can be used for visualization and interaction. We propose two basic configurations: the Virtual Table, consisting of a single display surface, and the Virtual Teleporter, consisting of a pair of tables for image capture and display. The Virtual Table displays either 3D computer generated images or previously captured s

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Xi, K., and Y. Duan. "AMS-3000 LARGE FIELD VIEW AERIAL MAPPING SYSTEM: BASIC PRINCIPLES AND THE WORKFLOW." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B1-2020 (August 6, 2020): 79–84. http://dx.doi.org/10.5194/isprs-archives-xliii-b1-2020-79-2020.

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Abstract. Three-line array stereo aerial survey camera is a typical mapping equipment of aerial photogrammetry. As one of the airborne equipment, it can quickly obtain a large range of basic geographic information with high precision. At present, typical three-line array stereoscopic aerial survey cameras, such as Leica ADS40 and 80, have the disadvantages of small field of view and low resolution, which makes it difficult to meet the demand of large-scale topographic mapping for economic construction. For the urgent need of domestic three linear array aerial mapping camera in our project, we

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Kataoka, R., Y. Miyoshi, K. Shigematsu, et al. "Stereoscopic determination of all-sky altitude map of aurora using two ground-based Nikon DSLR cameras." Annales Geophysicae 31, no. 9 (2013): 1543–48. http://dx.doi.org/10.5194/angeo-31-1543-2013.

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Abstract. A new stereoscopic measurement technique is developed to obtain an all-sky altitude map of aurora using two ground-based digital single-lens reflex (DSLR) cameras. Two identical full-color all-sky cameras were set with an 8 km separation across the Chatanika area in Alaska (Poker Flat Research Range and Aurora Borealis Lodge) to find localized emission height with the maximum correlation of the apparent patterns in the localized pixels applying a method of the geographical coordinate transform. It is found that a typical ray structure of discrete aurora shows the broad altitude distr

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Tanduo, Beatrice, Edward Borgogno, Filiberto Chiabrando, et al. "Underwater Heritage documentation using photogrammetry: the CRAB system." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLVIII-2/W10-2025 (July 7, 2025): 295–302. https://doi.org/10.5194/isprs-archives-xlviii-2-w10-2025-295-2025.

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Abstract. The documentation and preservation of submerged cultural heritage present significant challenges due to the complexity of the underwater environment, including issues related to accessibility, visibility, and the lack of reliable reference data for scaling and orientation. This study introduces CRAB (Calibrated Rig for Aquatic photogrammetric Bicamera system), a stereoscopic imaging system designed to support high-resolution 3D reconstruction of underwater archaeological sites. The system integrates two synchronised, full-frame 60 MP cameras on a fixed baseline and employs dome ports

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Ribas, Guilherme Carvalhal, Ricardo Ferreira Bento, and Aldo Junqueira Rodrigues. "Anaglyphic three-dimensional stereoscopic printing: revival of an old method for anatomical and surgical teaching and reporting." Journal of Neurosurgery 95, no. 6 (2001): 1057–66. http://dx.doi.org/10.3171/jns.2001.95.6.1057.

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✓ The authors describe how to use the three-dimensional (3D) anaglyphic method to produce stereoscopic prints for anatomical and surgical teaching and reports preparation by using currently available nonprofessional photographic and computer methods. As with any other method of producing stereoscopic images, the anaglyphic procedure is based on the superimposition of two slightly different images of the object to be reproduced, one seen more from a left-sided point of view and the other seen more from a right-sided point of view. The pictures are obtained using a single camera, which following

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Jama, Michal, and Dale Schinstock. "Parallel Tracking and Mapping for Controlling VTOL Airframe." Journal of Control Science and Engineering 2011 (2011): 1–10. http://dx.doi.org/10.1155/2011/413074.

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This work presents a vision based system for navigation on a vertical takeoff and landing unmanned aerial vehicle (UAV). This is a monocular vision based, simultaneous localization and mapping (SLAM) system, which measures the position and orientation of the camera and builds a map of the environment using a video stream from a single camera. This is different from past SLAM solutions on UAV which use sensors that measure depth, like LIDAR, stereoscopic cameras or depth cameras. Solution presented in this paper extends and significantly modifies a recent open-source algorithm that solves SLAM

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Ogawa, Masahiko, Kazunori Shidoji, and Yuji Matsuki. "Assessment of Stereoscopic Multi-resolution Images for a Virtual Reality System." International Journal of Virtual Reality 9, no. 2 (2010): 31–37. http://dx.doi.org/10.20870/ijvr.2010.9.2.2769.

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A camera and monitor system that projects actual real-world images has yet to be developed due to the technical limitation that the existing cameras cannot simultaneously acquire high-resolution and wide-angle images. In this research, we try to resolve this issue by superimposing images; a method which is effective because the entire wide-angle image does not necessarily need to be of high resolution because of perceptual characteristics of the human visual system. First, we examined the minimum resolution required for the field of view, which indicated that a triple-resolution image where po

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Dueholm, K. S. "Geologic photogrammetry using standard small-frame cameras." Rapport Grønlands Geologiske Undersøgelse 156 (January 1, 1992): 7–17. http://dx.doi.org/10.34194/rapggu.v156.8187.

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Multi-model photogrammetry enables precise three-dimensional measurements from strips or blocks of overlapping small-frame photographs (colour slides). The method can be used for geo-scientific terrain analysis and mapping. Of special interest is the ability to map otherwise inaccessible terrain features such as geological outcrops on steep mountain faces and canyon walls. Field photography is carried out without special photogrammetric training using ordinary small-frame cameras. Photographs can be taken at any scale and angle from terrestrial stations, helicopters, light planes, or boats. In

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Ioli, F., E. Bruno, D. Calzolari, et al. "A REPLICABLE OPEN-SOURCE MULTI-CAMERA SYSTEM FOR LOW-COST 4D GLACIER MONITORING." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLVIII-M-1-2023 (April 21, 2023): 137–44. http://dx.doi.org/10.5194/isprs-archives-xlviii-m-1-2023-137-2023.

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Abstract. Image-based monitoring has emerged as a prevalent technique for sensing mountain environments. Monoscopic time-lapse cameras, which rely on digital image correlation to quantify glacier motion, have limitations due to the need for a Digital Elevation Model for deriving 3D flow velocity fields. Multi-camera systems overcome this limitation, as they allow for a 3D reconstruction of the scene. This paper presents a replicable low-cost stereoscopic system designed for 4D glacier monitoring. The system consists of independent and autonomous units, built from off-the-shelves components, su

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Panday, Sanjeeb Prasad. "Stereoscopic Correspondence of Particles for 3-Dimensional Particle Tracking Velocimetry by using Genetic Algorithm." Journal of the Institute of Engineering 12, no. 1 (2017): 10–26. http://dx.doi.org/10.3126/jie.v12i1.16706.

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The genetic algorithm (GA) based stereo particle-pairing algorithm has been developed and applied to the spatial particle-pairing problem of the stereoscopic three-dimensional (3-D) PTV system. In this 3 D PTV system, particles viewed by two (or more than two) stereoscopic cameras with a parallax have to be correctly paired at every synchronized time step. This is important because the 3-D coordinates of individual particles cannot be computed without the knowledge of the correct stereo correspondence of the particles. In the present study, the GA algorithm is applied to the epipolar line prox

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Cai, Chengtao, Bing Fan, Xin Liang, and Qidan Zhu. "Automatic Rectification of the Hybrid Stereo Vision System." Sensors 18, no. 10 (2018): 3355. http://dx.doi.org/10.3390/s18103355.

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By combining the advantages of 360-degree field of view cameras and the high resolution of conventional cameras, the hybrid stereo vision system could be widely used in surveillance. As the relative position of the two cameras is not constant over time, its automatic rectification is highly desirable when adopting a hybrid stereo vision system for practical use. In this work, we provide a method for rectifying the dynamic hybrid stereo vision system automatically. A perspective projection model is proposed to reduce the computation complexity of the hybrid stereoscopic 3D reconstruction. The r

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Pavlov, V. I. "Aerial photography of the water area." Geodesy and Cartography 956, no. 2 (2020): 18–24. http://dx.doi.org/10.22389/0016-7126-2020-956-2-18-24.

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During the development of water resources the characteristics of excitement, direction, and flow velocity, depth, points of bottom, temperature and chemical composition of water is to be taken into account. Some of these indicators are determined through the results of measuring single aerial photographs and their stereoscopic pairs. Making aerial photography (APS) of water surface on technology for topographic land survey enables obtaining only single overlapping aerial photographs, as the water surface is in constant motion. Stereoscopic pairs of aerial photographs can be obtained if photogr

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Midulla, P. "BIFOCAL PAIRS OF IMAGES FOR LOW-COST SURVEY IN CLOSE RANGE PHOTOGRAMMETRY." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W17 (November 29, 2019): 203–7. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w17-203-2019.

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Abstract. This paper present a method for close range photogrammetry based on an camera positioning scheme in which two cameras capture an equal portion of an object at the same scale, but have different focal lengths and camera-to-object distances. This scheme is alternative to the stereoscopic scheme and is associated with a system of equations which permits one to calculate first the relief displacement of points on a photograph and then their relief relative to a reference plane. The obtained relief and relief displacement values can be used to produce low-cost orthophotographs by using so

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Ciullo, Vito, Lucile Rossi, and Antoine Pieri. "Experimental Fire Measurement with UAV Multimodal Stereovision." Remote Sensing 12, no. 21 (2020): 3546. http://dx.doi.org/10.3390/rs12213546.

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In wildfire research, systems that are able to estimate the geometric characteristics of fire, in order to understand and model the behavior of this spreading and dangerous phenomenon, are required. Over the past decade, there has been a growing interest in the use of computer vision and image processing technologies. The majority of these works have considered multiple mono-camera systems, merging the information obtained from each camera. Recent studies have introduced the use of stereovision in this field; for example, a framework with multiple ground stereo pairs of cameras has been develo

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Porreca, Luca, Anestis I. Kalfas, Reza S. Abhari, Yong Il Yun, and Seung Jin Song. "Stereoscopic PIV measurements in a two-stage axial turbine." E3S Web of Conferences 345 (2022): 01013. http://dx.doi.org/10.1051/e3sconf/202234501013.

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In the present work, the three-dimensional flow field in the interstage region of a twostage axial turbine has been measured by a stereoscopic PIV system. The stereoscopic method is used to compensate for perspective as well as to observe the highly threedimensional flows. The digital images are recorded with a set of two cameras positioned perpendicularly to the measurement plane and inclined by an angle varying between 22° and 30° to allow stereoscopic measurements. The laser beam is delivered to a laser endoscope able to access the measurement areas. By traversing radially, several blade-to

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Steinbuck, Jonah V., Paul L. D. Roberts, Cary D. Troy, et al. "An Autonomous Open-Ocean Stereoscopic PIV Profiler." Journal of Atmospheric and Oceanic Technology 27, no. 8 (2010): 1362–80. http://dx.doi.org/10.1175/2010jtecho694.1.

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Abstract Over the past decade, a novel free-fall imaging profiler has been under development at the Scripps Institution of Oceanography to observe and quantify biological and physical structure in the upper 100 m of the ocean. The profiler provided the first detailed view of microscale phytoplankton distributions using in situ planar laser-induced fluorescence. The present study examines a recent incarnation of the profiler that features microscale turbulent flow measurement capabilities using stereoscopic particle image velocimetry (PIV). As the profiler descends through the water column, a v

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Lee, Cheon, Hyok Song, Byeong-Ho Choi, and Yo-Sung Ho. "Multi-view Generation using High Resolution Stereoscopic Cameras and a Low Resolution Time-of-Flight Camera." Journal of Korea Information and Communications Society 37, no. 4A (2012): 239–49. http://dx.doi.org/10.7840/kics.2012.37a.4.239.

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Sugita, Kenichiro, Yohji Ohohigashi, and Shigeaki Kobayashi. "Stereoscopic television system for use with the operating microscope." Journal of Neurosurgery 62, no. 4 (1985): 610–11. http://dx.doi.org/10.3171/jns.1985.62.4.0610.

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✓ A new and simple method of stereoscopic television imaging of surgical procedures performed under an operating microscope has been developed. Two television cameras of the same type, two television monitors of the same size, and a mirror box for fusion of the two visual objects on the two television monitors are used. No significant modifications of available components are necessary. The method can be applied to all operating microscopes with a beam splitter.

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Chen, Hongru, Nicolas Rambaux, and Jérémie Vaubaillon. "Accuracy of meteor positioning from space- and ground-based observations." Astronomy & Astrophysics 642 (October 2020): L11. http://dx.doi.org/10.1051/0004-6361/202039014.

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Aims. The knowledge of the orbits and origins derived from meteors is important for the study of meteoroids and of the early solar system. With an increase in nano-satellite projects dedicated to Earth observations or directly to meteor observations (e.g., the Meteorix CubeSat), we investigate the stereoscopic measurement of meteor positions using a pair of cameras, one deployed in space and one on the ground, and aim to understand the accuracy and the main driving factors. This study will reveal the requirements for system setups and the geometry favorable for meteor triangulation. Methods. T

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Kataoka, R., Y. Fukuda, H. A. Uchida, et al. "High-speed stereoscopy of aurora." Annales Geophysicae 34, no. 1 (2016): 41–44. http://dx.doi.org/10.5194/angeo-34-41-2016.

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Abstract. We performed 100 fps stereoscopic imaging of aurora for the first time. Two identical sCMOS cameras equipped with narrow field-of-view lenses (15° by 15°) were directed at magnetic zenith with the north–south base distance of 8.1 km. Here we show the best example that a rapidly pulsating diffuse patch and a streaming discrete arc were observed at the same time with different parallaxes, and the emission altitudes were estimated as 85–95 km and > 100 km, respectively. The estimated emission altitudes are consistent with those estimated in previous studies, and it is suggested that

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Sun, Hai, David W. Roberts, Hany Farid, Ziji Wu, Alex Hartov, and Keith D. Paulsen. "Cortical Surface Tracking Using a Stereoscopic Operating Microscope." Operative Neurosurgery 56, suppl_1 (2005): ONS—86—ONS—97. http://dx.doi.org/10.1227/01.neu.0000146263.98583.cc.

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Abstract OBJECTIVE: To measure and compensate for soft tissue deformation during image-guided neurosurgery, we have developed a novel approach to estimate the three-dimensional (3-D) topology of the cortical surface and track its motion over time. METHODS: We use stereopsis to estimate the 3-D cortical topology during neurosurgical procedures. To facilitate this process, two charge-coupled device cameras have been attached to the binocular optics of a stereoscopic operating microscope. Before surgery, this stereo imaging system is calibrated to obtain the extrinsic and intrinsic camera paramet

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Romps, David M., and Ruşen Öktem. "Observing Clouds in 4D with Multiview Stereophotogrammetry." Bulletin of the American Meteorological Society 99, no. 12 (2018): 2575–86. http://dx.doi.org/10.1175/bams-d-18-0029.1.

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AbstractNewly installed stereo cameras ringing the Southern Great Plains (SGP) Atmospheric Radiation Measurement (ARM) site in Oklahoma are providing a 4D gridded view of shallow clouds. Six digital cameras have been installed in pairs at a distance of 6 km from the site and with a spacing of 500 m between cameras in a pair. These pairs of cameras provide stereoscopic views of shallow clouds from all sides; when these data are combined, they allow for a complete stereo reconstruction. The result—the Clouds Optically Gridded by Stereo (COGS) product—is a 4D grid of cloudiness covering a 6 km ×

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