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.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0709109-193237 |
| Date | 09 July 2009 |
| Creators | Lee, Chen-wei |
| Contributors | Wei-hung Su, Yi-jen Chiu, Chao-kuei Lee, Ann-kuo Chu |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0709109-193237 |
| Rights | not_available, Copyright information available at source archive |
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