A Study of Synchronization of Two Optoelectronic Motion Trackers
碩士 === 國立成功大學 === 機械工程學系碩博士班 === 94 === The purpose of the study is to focus on the improvement of the CCD board and the synchronization issues of a 3D human body motion tracker. The motion tracker uses three linear CCD and cylindrical lens to detect the 3D position of the infrared LED in space. A...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2006
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| Online Access: | http://ndltd.ncl.edu.tw/handle/52968314747837691111 |
| Summary: | 碩士 === 國立成功大學 === 機械工程學系碩博士班 === 94 === The purpose of the study is to focus on the improvement of the CCD board and the synchronization issues of a 3D human body motion tracker. The motion tracker uses three linear CCD and cylindrical lens to detect the 3D position of the infrared LED in space. A DSP chip is used to process the output image from linear CCD and calculate the peak position of the image. The synchronization problems of the system include the synchronization of the LED flashing and the CCD capturing and the synchronization of the three CCD modules’ exposure. We use the CCD exposure ROG signal to contest the synchronization of the LED flashing and CCD image capturing. In order to synchronize three CCDs capturing, we use a CPLD to produce working clock for the three CCDs. For reducing the occlusion of markers, we use two motion trackers to capture the subject’s motion. This task also generates the synchronization and data transfer problems between the two motion trackers. In this study, we also postulate a method to solve the problems.
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