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Phase unwrapping for noisy phase map using localized compensator

AO51-21_4984-4994.pdf2.81 MBPDF見る/開く

タイトル: Phase unwrapping for noisy phase map using localized compensator
著者: Tomioka, Satoshi 著作を一覧する
Nishiyama, Shusuke 著作を一覧する
発行日: 2012年 7月20日
出版者: Optical Society of America
誌名: Applied Optics
巻: 51
号: 21
開始ページ: 4984
終了ページ: 4994
出版社 DOI: 10.1364/AO.51.004984
抄録: Phase unwrapping for a noisy image suffers from many singular points. Singularity-spreading methods are useful for the noisy image to regularize the singularity. However, the methods have a drawback of distorting phase distribution in a regular area that contains no singular points. When the singular points are confined in some local areas, the regular region is not distorted. This paper proposes a new phase unwrapping algorithm that uses a localized compensator obtained by clustering and by solving Poisson's equation for the localized areas. The numerical results demonstrate that the proposed method can improve the accuracy compared with other singularity-spreading methods.
Rights: © 2012 Optical Society of America
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 富岡 智


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