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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/65007完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 楊志忠 | |
| dc.contributor.author | Chiung-Ting Wu | en |
| dc.contributor.author | 巫炯霆 | zh_TW |
| dc.date.accessioned | 2021-06-16T23:14:47Z | - |
| dc.date.available | 2012-08-03 | |
| dc.date.copyright | 2012-08-03 | |
| dc.date.issued | 2012 | |
| dc.date.submitted | 2012-08-01 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/65007 | - |
| dc.description.abstract | 我們展示了在傅氏域光學同調斷層掃瞄的一個省時之鏡像消除
方法，包括了理論說明及實驗結果。這新方法利用基於實像與鏡像之 系統相位差相反的性質，來區別兩者。基於合理的假設，我們可以求 得兩個聯立方程式之解，由此可得到實像訊號。於本論中，我們說明 了這個方法的理論基礎，並且證明使用平均和疊代步驟可以進一步改 善實像品質。再者，我們估算在不同影像處理條件下之鏡像消除比 值，包括不同的疊代次數以及兩條A-模掃瞄間不同系統相位差等條 件變化。同時，我們比較我們的方法與廣泛使用的BM 掃瞄法結果之 不同，在我們的方法中使用兩次疊代之鏡像消除品質可勝過BM 掃瞄 法，而使用我們的方法所需電腦運算時間明顯地較BM 掃瞄法短。 基於傅氏域鎖模雷射之製作，我們還建置了一套高速掃頻光學同 調斷層掃瞄系統，該雷射之中心波長在1290 奈米附近，在空氣中光 學同調斷層掃瞄系統之軸向解析度約為10 微米。傅氏域鎖模雷射系 統內包含作為增益介質以及輸出功率放大器之半導體光學放大器，其 掃頻功能係由在適當的頻率下控制法布立－培若可調式濾波器來達 成。我們使用雙重延遲技術使掃頻速率變為四倍，達二十四萬赫茲， 傅氏域鎖模雷射的輸出功率約為40 毫瓦。掃瞄一張具有500000 A- 模掃瞄之三維圖像所需時間只要2.1 秒。 | zh_TW |
| dc.description.provenance | Made available in DSpace on 2021-06-16T23:14:47Z (GMT). No. of bitstreams: 1 ntu-101-R99941042-1.pdf: 3386666 bytes, checksum: 46c3875edc150c0176badc0947163de2 (MD5) Previous issue date: 2012 | en |
| dc.description.tableofcontents | 致謝.………………………….…………………………i
中文摘要........................................................................ ii Abstracts....................................................................... iii Contents...........................................................................v Chapter 1 Introduction - Optical Coherence Tomography......... 1 1.1 Introduction................................................................................... 1 1.2 Theory of Optical Coherence Tomography................................ 4 1.3 Fourier-domain Optical Coherence Tomography.................... 10 1.3.1 Spectral-domain Optical Coherence Tomography............ 10 1.3.2 Swept-source Optical Coherence Tomography................. 11 1.4 Mirror Image............................................................................... 14 1.5 Research Motivations.................................................................. 19 Chapter 2 A Computation Time-saving Mirror Image Suppression Method in Fourier-domain Optical Coherence Tomography............................................. 22 2.1 Theory........................................................................................... 22 2.2 Mirror Image Suppression Demonstration............................... 28 2.3 Mirror Image Suppression Ratio............................................... 35 Chapter 3 High-speed Swept-source Optical Coherence Tomography Based on a Fourier-domain Mode-locking Laser......................................................48 3.1 Introduction................................................................................. 48 3.2 Setup of FDML Laser and SS-OCT………………………....... 50 3.3 High-speed SS-OCT Scanning Results………………………...53 Chapter 4 Conclusions and Future Work .................................. 58 4.1 Summary...................................................................................... 58 4.2 Future Work................................................................................ 60 References ....................................................................61 | |
| dc.language.iso | en | |
| dc.subject | 傅氏域光學同調斷層掃瞄 | zh_TW |
| dc.subject | 鏡像 | zh_TW |
| dc.subject | 相位差 | zh_TW |
| dc.subject | 傅氏域鎖模雷射 | zh_TW |
| dc.subject | 法布立－培若可調式濾波器 | zh_TW |
| dc.subject | mirror image | en |
| dc.subject | phase shift | en |
| dc.subject | Fourier-domain mode-locking laser | en |
| dc.subject | fiber Fabry-Perot tunable filter | en |
| dc.subject | Fourier-domain optical coherence tomography | en |
| dc.title | 傅氏域光學同調斷層掃瞄技術研究 | zh_TW |
| dc.title | Technique Development of Fourier-domain Optical Coherence Tomography | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 100-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蔡孟燦,呂志偉,江衍偉 | |
| dc.subject.keyword | 傅氏域光學同調斷層掃瞄,鏡像,相位差,傅氏域鎖模雷射,法布立－培若可調式濾波器, | zh_TW |
| dc.subject.keyword | Fourier-domain optical coherence tomography,mirror image,phase shift,Fourier-domain mode-locking laser,fiber Fabry-Perot tunable filter, | en |
| dc.relation.page | 65 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2012-08-03 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 光電工程學研究所 | zh_TW |
| 顯示於系所單位： | 光電工程學研究所 | |
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| ntu-101-1.pdf 未授權公開取用 | 3.31 MB | Adobe PDF |
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