| 研究生: |
鍾書銘 Chung, Shu-Ming |
|---|---|
| 論文名稱: |
以SOPC實現強健性彩色影像物體追蹤及移動預測系統 Using SOPC to Implement Robust Color Image System for Object Tracking and Motion Estimation |
| 指導教授: |
楊明興
Young, Ming-Shing |
| 學位類別: |
碩士 Master |
| 系所名稱: |
電機資訊學院 - 電機工程學系 Department of Electrical Engineering |
| 論文出版年: | 2004 |
| 畢業學年度: | 92 |
| 語文別: | 中文 |
| 論文頁數: | 81 |
| 中文關鍵詞: | 權重值、感興趣區域、移動預測、SOPC |
| 外文關鍵詞: | SOPC, weight value, motion estimation, ROI(Region of Interest) |
| 相關次數: | 點閱:99 下載:4 |
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本研究利用高整合性的SOPC系統結合彩色影像追蹤模組,實現一個強健性的物體追蹤及預測系統。其主要透過對二值化的視訊畫面進行分割,得到M x N的區塊與各區塊X、Y的位址定位。並將每區塊中二值化得到的數值累加,得到該區塊分數。將每個區塊不同的分數除以總分,定義得到的值為各區塊的權重值。並將每個區塊不同的權重值與區塊位址相乘並加總,可計算得追蹤物體的中心位置。
系統中亦規劃感興趣區域的範圍,對於追蹤物體劃分出一個矩形區域邊界。利用感興趣區域的規劃,可結合影像壓縮技術使得應用在監視系統時,減少影像儲存量,降低監視系統建構成本。移動預測功能則可結合主動式攝影機;透過預測的移動趨勢,將追蹤目標物維持在影像畫面的中心,以達到最佳追蹤及紀錄效果。
This research utilized the highly integrated SOPC to combine the color tracking module so as to implement a robust object tracking and motion estimation system. First, it would divide the binary image into M×N blocks matrix and define positions of X, and Y of each block. Then, this research would use accumulator to add up the binary value of every block and it would regard it as the scores for each block. After that, it would divide these scores by the total score of current frame. Then, the result could be defined as the weight value of all blocks. The sum of these weight values that were multiplied by blocks’ position is the actual location of the tracking object.
In this system, it also schemed out a rectangular region as the ROI of the tracking object. According to the result, it suggested that it would be better to process the ROI cooperate with novel image compression technology, JPEG200 or MPEG4 in the future. The storage capacity could be reduced for image and the surveillance system’s price could be cost down. The function of motion estimation can be used with active CCD camera. By the predicted trend of the tracking object, the object could be kept in the center of image and the best record and tracking could be achieved.
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