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研究生:賴乾志
研究生(外文):Cian-Jhih Lai
論文名稱:影像處理結合人工智慧於相位重建法之研究
指導教授:黃敏睿 
指導教授(外文):M. J. Huang
學位類別:碩士
校院名稱:國立中興大學
系所名稱:機械工程學系
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2001
畢業學年度:89
語文別:中文
論文頁數:62
中文關鍵詞:相位重建模糊邏輯影像處理
外文關鍵詞:phase unwrappingfuzzy logicimage processing
相關次數:
  • 被引用被引用:5
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本論文主要目的是對現有的相位重建技術,及其相關之基礎學術與應用技術做一深入的探討研究,並針對這些方法之缺點進行改善,擬建立一快速且無誤差的相位重建技術。
論文中首先針對平行性相位重建法(Parallel Phase Unwrapping)的特性以及性能進行探討,進而提出一個較為簡潔、快速且強健的平行性相位重建法,此方法可直接對高奇異點密度分佈之相位圖進行重建,無需先對奇異點進行偵測及處理。
接著本論文更提出一利用phase jumps分區塊的相位重建法,此方法以全域(global)及區域(local)混合處理之方式,進行高效能之相位重建。首先對無phase jump之區域執行全域的相位重建,隨後處理phase jump區的相位重建;它大幅地節省了全域處理區所須之相位重建時間,因此此法擁有相當快速的相位重建速度。
最後結合人工智慧之模糊(Fuzzy)理論的應用,以決定各點之偏差(Bias)值直接進行相位之重建,其速度與精度皆遠較前述之方法為佳。
An innovative phase unwrapping algorithm is proposed here. It has a parallel and noise-immune nature. The criterion itself is simple, concise and robust. Unlike earlier parallel unwrapping algorithm, which converts the wrapped data into a saw-tooth format as soon as possible, the proposed algorithm converts the wrapped map into a clear map in several times of iteration and then shifts the clear fringes, one pixel per frame, outside of the map.
Advantageously, the algorithm could be applied only to the data, located on the wrapped band, leaving data elsewhere with an appropriate global movement. In this approach, null dummy work is done during the hybrid implementation. Therefore, it is a highly efficient work. Finally, a fuzzy logic is applied to the wrapped data to decide the bias of each pixel of the map. Once done, the unwrapped phase field could be successfully achieved.
中文摘要……………………………………………………………..Ⅰ
英文摘要……………………………………………………………..Ⅱ
致謝…………………………………………………………………..Ⅲ
目錄…………………………………………………………………..Ⅳ
圖目錄………………………………………………………………..Ⅵ
表目錄………………………………………………………………..Ⅸ
第一章緒論
1.1前言…………………………………………………………….1
1.2相位重建技術之基本觀念…………………………………….3
1.3論文架構………………………………………………………10
第二章Parallel Phase Unwrapping
2.1 Cellular Automata (CA)演算法的介紹……………………11
2.2快速且強健的平行性相位重建法之研製……………………15
2.3性能比較………………………………………………………22
2.4結論…………………………………………………………..32
第三章Phase Unwrapping By Blocks
3.1分區塊的相位重建法之介紹…………………………………33
3.2自動分區的相位重建法之研製………………………………36
3.3結論……………………………………………………………42
第四章Phase Unwrapping Using Artificial Intelligence
4.1模糊邏輯的介紹………………………………………………44
4.2使用模糊邏輯的相位重建法…………………………………48
4.3性能測試………………………………………………………53
4.4結論……………………………………………………………57
第五章結論…………………………………………………………...58
參考文獻………………………………………………………….……59
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