本文主要發展人體運動追蹤器的系統，利用三台線性CCD模組與柱狀透鏡對空間中的紅外光LED進行定位，並使用DSP對CCD的輸出影像進行處理與數學運算。研究內容包括CCD模組電路板的改善與系統同步問題的處理，而系統同步問題包括LED閃滅與CCD曝光同步、三台CCD模組取像之同步。本文提出以CCD的曝光控制訊號為時間上的依據達到LED閃滅與CCD曝光同步的目的。另外，本文使用同一顆CPLD提供工作時脈給三台CCD模組，使得三台CCD模組達到取像同步的目的。為了減少marker遮蔽的問題，試圖以兩組以上的motion tracker同時對受測者進行運動紀錄，本文亦針對兩組motion tracker所衍生的系統同步與資料傳輸問題提出克服的方式。

　　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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