利用光導管增加數位全像空間帶寬乘積之研究

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姓名

林廷瑋(Ting-Wei Lin) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

利用光導管增加數位全像空間帶寬乘積之研究
(Study of Extension of Space-Bandwidth Product with a Light Pipe for Digital Holography)

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摘要(中)

本文提出利用光導管增加空間帶寬乘積，意旨在相同解析度（Resolution）下增加視野（Field of View，簡稱FOV）範圍、或者在相同視野下增加解析度，其應用範圍廣泛，例如在數位全像顯微鏡架構中，取代物鏡之功能達到微小化目的；另一方面，用於數位全像儲存系統中，可以等效放大其電子感光元件之畫素總數，對於資料讀取速率上有更多幫助。
本實驗室提出在物與影像偵測元件之間加入矩形光導管，藉由矩形光導管之反射面來蒐集大角度之高頻訊號光，並使用影像矩陣鏡射之技術來克服空間帶寬限制，大幅增進重建影像之品質。我們建立了在不同物光或參考光時重建影像之運算原理與方式，最後以實驗驗證此方式提升還原影像解析度與視野之結果。

摘要(英)

In this thesis, we propose a new method that using light pipe to extend space-bandwidth product by increasing field of view and the resolution at the same field of view simultaneously. One of the applications is to use light pipe to replace the objective lens for miniaturize the microscope with digital holography. On the other hand, this method can be used to extend effective CCD pixel number so that it is helpful to storage capacity and access rate.
We propose to use light pipe between object and image detector. It can enhance resolution of reconstructed image by using reflective surface to collect signal light in high frequency. We also use mirror image to overcome space-bandwidth limit, and establish a computing method to reconstruct image in different object lights or reference light. Finally, the corresponding experiments are done, and image resolution and field of view are improved, respectively.

關鍵字(中)

★ 空間帶寬乘積
★ 數位全像
★ 光導管

關鍵字(英)

★ Space-Bandwidth Product
★ Digital Holography
★ Light Pipe

論文目次

摘要 IV
Abstract V
誌謝 VI
目錄 VII
圖索引 X
表索引 XIII
第一章緒論 1
1.1 數位全像顯微術與數位全像儲存系統之發展 1
1.2 研究動機與挑戰 3
1.3 論文大綱 4
第二章原理介紹 5
2.1 全像術理論與發展 5
2.2 數位全像術 7
2.2.1 數位全像術的架構與紀錄 7
2.2.2 數位全像術的影像重建 9
2.3 取樣定理、空間帶寬乘積與繞射 13
第三章使用光導管提升解析度之原理、模擬與實驗 17
3.1 全像術中加入光導管提升系統解析度之原理 17
3.2 使用光導管之數位全像重建提高影像解析度方法 19
3.3 模擬分析 25
3.3.1 模擬參數設定 25
3.3.2 直接傅氏轉換法與角譜重建法之雜訊比較 27
3.3.3 改良直接傅氏轉換法解決雜訊問題 29
3.3.4 重建方式之分析與比較 32
3.3.5 模擬結果與討論 33
3.4 實驗驗證與討論 35
3.4.1 實驗架構 35
3.4.2 實驗結果與討論 38

第四章使用光導管增加視野之原理、模擬與實驗 43
4.1 全像術中加入光導管增加視野之原理 43
4.2 使用光導管之數位全像重建增加影像視野方法 45
4.3 模擬分析 46
4.3.1 模擬參數設定 46
4.3.2 模擬結果與討論 47
4.4 實驗驗證及討論 48
4.4.1 實驗架構 48
4.4.2 實驗結果與討論 50
第五章結論 52
參考文獻 54
中英名詞對照表 58

參考文獻

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指導教授

孫慶成(Ching-Cherng Sun)

審核日期

2014-7-29

推文