| Fast frequency-guided sequential demodulation of a single fringe pattern. | |
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MedLine Citation:
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PMID: 21081974 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Fast frequency-guided sequential demodulation (FFSD) for demodulating a single closed-fringe pattern is proposed as an improvement of frequency-guided sequential demodulation (FSD). Instead of using optimization to estimate the local frequencies for determining the sign of the phase, the FFSD estimates the local frequencies by directly calculating the gradient of the obtained phase with an undetermined sign. This improvement considerably reduces the computational complexity of the FSD and leads to a faster and simpler method. Simulated and experimental fringe patterns are used to test the proposed method and show that the demodulation speed of FFSD is about 150 times faster than that of the FSD, while the robustness and accuracy remain almost the same. |
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Authors:
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Li Kai; Qian Kemao |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Optics letters Volume: 35 ISSN: 1539-4794 ISO Abbreviation: Opt Lett Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-11-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7708433 Medline TA: Opt Lett Country: United States |
Other Details:
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Languages: eng Pagination: 3718-20 Citation Subset: - |
Affiliation:
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Department of Mechanics, Shanghai University, Shanghai 200444, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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