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Speckle-reduction using the empirical mode decomposition for fringe analysis

Phase-extraction from fringe patterns is an inevitable procedure in many applications, such as interferometry,Moiré analysis, and profilometry using structured light illumination. However, speckle noises could be introduced when a coherent light source is used. In this thesis, we use the empirical mode decomposition (EMD) to perform the speckle-reduction. It is found that phases can be extracted with high accuracy once speckle-reduction is performed with the EMD.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0709109-193237
Date09 July 2009
CreatorsLee, Chen-wei
ContributorsWei-hung Su, Yi-jen Chiu, Chao-kuei Lee, Ann-kuo Chu
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageEnglish
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0709109-193237
Rightsnot_available, Copyright information available at source archive

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