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標題: 利用不連續點和區塊接合進行形貌不連續相位展開
Phase unwrapping with physical discontinuities by residues and submap stitching
作者: 蔡宗燁
Tsai, Tsung-Yeh
關鍵字: residues;不連續點;phase unwrapping;submap-stitching;相位展開;區塊接合
出版社: 機械工程學系所
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The paper proposes a phase unwrapping method with physical discontinuties, it is a spatial phase unwrapping. First, change images into wrapped phase map through phase shift formula, then look for residues that appears because of physical discotinuties. Find out the position of physical discotinuties according to link each other of residuses. Use this information and submap stitching to cut image apart into smaller sub regions. Use parallel phase unwrapping separately to each sub region. Finally, compared difference of among each sub region boundary, and dispelling this difference. Make unwrapped phase map have more obvious drop in the position of physical discotinuties.
In this paper, there were two experiments, structured light method and electronic speckle pattern interferometry. The structured light method use sinusoidal fringe that projected to object, measured the relative altitude. Electronic speckle pattern interferometry use after changing interfere image to before changing interfere image and get wrapped phase map. Utilize two methods prove this paper proposes the suitability.
其他識別: U0005-2408201019014900
Appears in Collections:機械工程學系所

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