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研究生:蔡博賢
研究生(外文):Po-hsien Tsai
論文名稱:攝影機中數位信號處理器之演算法及即時硬體系統實現
論文名稱(外文):Algorithms and Real Time Hardware System Implementation for Camera Digital Signal Processor
指導教授:夏世昌夏世昌引用關係
指導教授(外文):Shih Chang Hsia
學位類別:碩士
校院名稱:國立高雄第一科技大學
系所名稱:電腦與通訊工程所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:73
中文關鍵詞:自動白平衡色彩內插
外文關鍵詞:auto white balancecolor interpolation
相關次數:
  • 被引用被引用:5
  • 點閱點閱:177
  • 評分評分:
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
近年來,視訊簡報投影系統因為使用方便而廣為流行。在本論文中,我們提出一個高效率可控制式的彩色影像數位信號處理器的架構,此處理器具有彩色內插,光源平衡,反光偵測,自動白平衡及色彩加強的功能,首先我們發展高效率之演算法,其中彩色內插演算法具有邊緣加權及區域增益的特性,以提升影像解析度,光源平衡處理使用非均勻增益控制,解決不同光源產生之光源不均勻問題。根據這些演算法設計即時處理器架構,最後使用XILINX公司所生產的FPGA來做硬體實現,並在實際投影簡報系統上做驗證,從測試結果中確認電路設計正確,符合1024 pixels x 768 lines x 15 frames 系統規格需求。
Recently, video presentation systems have become popular for its convenience. In this thesis, we present an efficient and programmable color image processor, which the function has color interpolation , light balance, light reflection detection , automatic white balance and color enhancement control . The proposed color interpolation algorithm can provide high resolution with edge direction weighting and a local gain approach and a non-uniform auto gain control is proposed for light balance processing. Based on the proposed algorithm, we develop real-time architecture for practical applications. The whole hardware circuit are finally simulated and verified by using a FPGA with XILINX development tools. This proposed camera digital signal processor is successfully implemented in the 1024 pixels x 768 lines x 15 frames practical video presentation system.
壹、緒論
一前言
二研究動機
三論文組織
貳、內插演算法
一彩色濾波陣列
二內插演算法簡介
三高效率色彩內插演算法
四演算法模擬與比較
參、即時色彩內插處理器架構
一色彩內插處理器系統方塊
二各模組詳細說明
肆、光源亮度控制演算法
一反光偵測
二自動增益控制調整亮度
三光源平衡
伍、色彩處理
一自動白平衡技術
二色彩轉換
三色彩加強
陸、硬體實做與測試驗證
一投影簡報系統
二處理器設計架構
三測試及驗證
四硬體實現
柒、結論
參考文獻
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