| 研究生: |
郭拱辰 Guo, Gong-Chen |
|---|---|
| 論文名稱: |
具邊緣偵測影像處理功能之CMOS影像感測晶片 A CMOS Imager with an Edge-Detection Image Processing Function |
| 指導教授: |
王俊智
Wang, Ching-Chun |
| 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: | 2006 |
| 畢業學年度: | 94 |
| 語文別: | 中文 |
| 論文頁數: | 83 |
| 中文關鍵詞: | 交換式電容電路 、邊緣偵測 、CMOS影像感測器 |
| 外文關鍵詞: | Switched-Capacitor Circuits, Edge-Detection, CMOS Image Sensor |
| 相關次數: | 點閱:157 下載:11 |
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影像分割為數位影像處理中相當重要之功能,而邊緣偵測為影像分割其中之一方法。本論文提出一硬體邊緣偵測架構,利用CMOS影像感測器高度整合性之優點,實作一包含影像感測器及硬體邊緣偵測電路之影像感測晶片。此架構將邊緣偵測電路獨立於影像感測器陣列,採平行處理運算,此架構具有的優點為高動態範圍輸入、高填充率、高速,且適用於大尺寸之應用。邊緣偵測電路中採用之交換式電容電路將有助於提高運算之解析度。
本設計採用國家晶片中心(CIC)提供之TSMC 0.35 2P4M 3.3V製程,實際下線像素陣列50x50之影像感測晶片,以驗證其邊緣偵測功能。晶片架構包含像素陣列、相關性二次取樣電路及邊緣偵測電路。晶片面積為2.36mm x 1.358mm,像素尺寸為10mm x 10mm。本晶片輸出速度可符合HDTV 1080P規格,以50x50畫面輸出,每秒666頁,所消耗之功率為26.4mW。
Image decomposition is one of the important functions of digital image processing, and edge-detection is an issue of image decomposition. In this thesis, a new hardware’s structure of edge-detection function has been presented. With highly integrated image system, the implemented of the imager integrate the pixel array with edge-detect hardware. The edge-detection circuits with column-parallel output are not contained in the pixel array, and that with the advantages of high dynamic range input, high fill factor, and high speed output. By implementing the edge-detection circuits with switched-capacitor amplifiers are beneficial for the resolution of the system.
The 50x50 pixel array imager that fabricated by TSMC 0.35 2P4M 3.3V process is proposed to verify the edge-detection function. The system contains pixel array, correlated double sampling array, and edge-detection hardware. The area of each pixel is 10mm x 10mm , and whole chip occupies 2.36mm x 1.358mm. The speed specification of the chip reaches HDTV 1080P, and power consumer is 26.4mW when the output of 50x50 resolution with 666 frames per second.
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