Motion measurement with high-speed video |
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| Institution: | 1. Division of Obstetrics & Gynaecology, KK Women''s and Children''s Hospital, Singapore;2. Duke-NUS Medical School, National University of Singapore, Singapore;1. Key Laboratory of Western China’s Mineral Resources and Geological Engineering, Ministry of Education, School of Earth Science and Resources, Chang''an University, Xi''an 710054, Shaanxi, China;2. Xinjiang Natural Resources and Ecological Environment Research Center, Urumqi 830000, China;1. Department of Neurosurgery, Tashkent Pediatric Medical Institute, Uzbekistan;2. Republican Specialized Scientific and Practical Medical Center of Neurosurgery, Uzbekistan;3. Neurosurgeon of Neurovascular Department, Republican Specialized Scientific and Practical Medical Center of Neurosurgery, Uzbekistan |
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| Abstract: | A new kinematic measurement system based on a high-speed video system, combined with a computer-assisted evaluation for the analysis of gait patterns, is described. The system allows both a reviewable visual assessment in slow motion (up to 1000 frames s−1 as well as automatic measurement of the kinematics of body segments. Specially developed software, which uses a pattern search algorithm and an additional subpixel correction, results in a deviation of less than 0.1% (without considering the lens nonlinearity). For most cases the recognition and tracking of temporarily concealed markers is also achieved. The results of the computer-assisted high-speed video analysis are being applied in rehabilitation programmes to increase the objectivity of standard movements, e.g. gait analysis of people with artificial limbs. |
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