An inexpensive stereo-image capture tool for motion study
Article
Article Title | An inexpensive stereo-image capture tool for motion study |
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ERA Journal ID | 4654 |
Article Category | Article |
Authors | |
Author | Chong, Albert K.-F. |
Journal Title | The Photogrammetric Record |
Journal Citation | 22 (119), pp. 226-237 |
Number of Pages | 12 |
Year | 2007 |
Place of Publication | Oxford, UK |
ISSN | 0031-868X |
1477-9730 | |
Digital Object Identifier (DOI) | https://doi.org/10.1111/j.1477-9730.2007.00439.x |
Abstract | This paper discusses the evaluation of a video stereo-image capture tool for photogrammetric applications. The 'NuView Adapter', a commonly available video-image splitting device, and a digital video camera (DV) could be used to capture stereoscopic video footage for many photogrammetric applications in which low-cost near-simultaneous stereo-images are required for 3D viewing or for 3D spatial data capture. Relevant photogrammetric applications might include: aerial surveillance, human/animal motion study (tracking), bank/security surveillance and precise 3D animation. The device permits two distinct views (left and right perspective views) to enter a single lens DV. A single convergence control in the device allows the user to obtain a stereo view of near and far objects. The system is easy to operate and the stereo-images give a good visual 3D effect. Research was carried out to determine the quality of the stereo-image for 3D measurement. The investigation involved: (1) the calibration of a customised system for optimum close range photogrammetric application; and (2) a case study involving motion tracking. A semi-automated monodigitising photogrammetric technique was used to determine the accuracy of the system. The results show that this system could achieve a spatial data accuracy of better than 13 mm at an object distance of 9 m. The horizontal and vertical accuracies are similar to those obtained by the conventional stereoscopic camera technique using a ''normal case'' configuration with 86% overlap |
Keywords | de-interlacing; digital video; movement tracking; NuView Adapter; stereoscopic video; digital video; computer graphics; multimedia systems; adapters (Telecommunication); telecommunication systems; stereoscopic cameras; photography; stereoscopic |
ANZSRC Field of Research 2020 | 400907. Industrial electronics |
401304. Photogrammetry and remote sensing | |
Public Notes | The definitive version is available at www3.interscience.wiley.com. Copyright 2007 The Author. Journal Compilation Copyright 2007 The Remote Sensing and Photogrammetry Society and Blackwell Publishing Ltd. |
Byline Affiliations | University of Otago, New Zealand |
https://research.usq.edu.au/item/9zq52/an-inexpensive-stereo-image-capture-tool-for-motion-study
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