本論文提立體視覺系統的方法，將物體的三維形貌量測的影像精
準重建出來。投影至待測物表面的2D正弦圖案，在不同的量測位置下，
都有相同的相位值(φ)。因此，可由比對相位值的方式，來達成圖形配
準(Image Registration)之目的，進一步找到各局部形貌間的關聯性，而
重建出待測物體的三維形貌。
本論文提出的立體視覺架構法較其他方法優越之處有：
(1) 成功設計出穿透率為弦狀的二維圖案，條紋精確值可達次微米。
(2) 利用2D正弦圖案，使圖形配準(Image registration)更容易達成。
(3) 使用Optical spot method重建出3D形貌，量測時間短，且其橫向精
確度比單一影像擷取系統的橫向精確度高。

This paper presents a novel technique which actually restructures the 3D image profiled by stereovision method. Correspondence between two images is addressed by projecting a 2D fringe pattern. These projected patterns fix their positions to the tested object during two segmented measurements. Finding two matched surface points becomes a problem of searching for two identical phases in the fused data sets. The proposed method is superior to the other methods because of the following reasons:
(1)We successfully designed a 2-D fringe pattern whose the transmittance is sinusoidal and the accuracy of the sinusoidal fringe pattern was of the order of sub-microns.
(2)By using the 2-D fringe pattern, image registration was achieved more easily.
(3)By using the optical spot method, the 3d image profiled was restructured such that the computational time was reduced and the crabwise accuracy was better than that of a single CCD system.

目錄

致謝……………………………………………………………Ⅰ
目錄………………………………………………………………………Ⅱ
中文摘要…………………………………………………………………Ⅴ
英文摘要…………………………………………………………………Ⅵ
表目錄……………………………………………………………………Ⅶ
圖目錄……………………………………………………………………Ⅷ
第一章 導論………………………………………………………………1
1-1 前言…………………………………………………………1
1-2 立體視覺法技術與發展……………………………………3
1-3 研究動機……………………………………………………5
1-4 論文架構……………………………………………………6
第二章 文獻回顧 ………………………………………………………8
2-1立體視覺………………………………………………………8
2-2影像對應方式…………………………………………………10
2-3立體視覺的透視理論發展與應用……………………………11
第三章 基本原理…………………………………………………………14
3-1 2-D正弦圖案…………………………………………………14
3-2相位量測技術…………………………………………………18
3-2-1傅立葉轉換法……………………………………………18
3-2-2相位展開…………………………………………………23
3-2-3相位移技術………………………………………………21
3-3立體視覺法……………………………………………………25
3-2-1 圖形配準(Image Registration)…………………………26
3-2-2 Optical Spot Method ……………………………………27
第四章 實驗架構…………………………………………………………30
4-1實驗裝置………………………………………………………31
4-2程式流程………………………………………………………33
第五章 實驗結果…………………………………………………………34
5-1系統精確值……………………………………………………34
5-2貝殼形貌之量測………………………………………………45
5-3紙黏土形貌之量測……………………………………………53
第六章 結論 ……………………………………………………………61
參考文獻…………………………………………………………………62
表…………………………………………………………………………36
圖…………………………………………………………………………41
附錄A Code written in matlab to calculation the phase distribution using
Fourier transform method ………………………………………68
附錄B Code written in the C programming language for phase unwrapping
Algorithm ………………………………………………………70
附錄C Code written in the C programming language for image
Registration ………………………………………………………83
附錄D Code written in matlab to calculation x data、y data and z data using
Optical spot method………………………………………………88

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