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| 研究生： |
林烝祺 |
|---|---|
| 論文名稱： |
以FPGA實現可自動對焦之 3D數位全像重建系統 The Implementation of Autofocusing System by FPGA for 3D Digital Holography Reconstruction |
| 指導教授： | 黃文吉 |
| 學位類別： |
碩士 Master |
| 系所名稱： |
資訊工程學系 Department of Computer Science and Information Engineering |
| 論文出版年： | 2014 |
| 畢業學年度： | 102 |
| 語文別： | 中文 |
| 論文頁數： | 57 |
| 中文關鍵詞： | 現場可程式化閘陣列 、菲涅耳轉換 、自動焦距校正 |
| 英文關鍵詞： | FPGA, Fresnel Transform, Autofocusing |
| 論文種類： | 學術論文 |
| 相關次數： | 點閱：173 下載：4 |
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本論文主要目的為在FPGA(Field Programmable Gate Array)平台提出一個硬體電路架構以實現全像圖的3D影像重建，此架構提供3D影像還原其相位所需的繞射計算以及相位展開功能，並且能夠對影像還原的焦距進行自動校正。此架構具有兩大優勢，其一為解決現存以GPU為主的3D影像還原系統功率消耗較高的缺點。其二為提供大多3D影像重建系統缺少的自動焦距校正功能。此架構中利用硬體進行菲涅耳轉換(Fresnel Transform)以執行繞射計算，自動焦距校正的部分則使用Normalized Variance數值來評估不同焦距下的影像清晰度。
在論文中我們將以FPGA來實現上述之硬體架構，並實際量測此架構執行之效能與功耗，根據實驗結果，本論文提出的架構較GPU或其他實現方式更具有可攜性、低功率消耗以及高速計算的優點。對於嵌入式數位全像顯微鏡(Embedded Digital Holographic Microscopy)等相關應用下是相當適合的設計架構。
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