| Pseudophase information from the complex analytic signal of speckle fields and its applications. Part II: statistical properties of the analytic signal of a white-light speckle pattern applied to the microdisplacement measurement. | |
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MedLine Citation:
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PMID: 16114529 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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To provide a theoretical background for the superiority of the signal-domain phase-only correlation (SDPOC) technique proposed here for microdisplacement measurement, we study the first- and the second-order statistical properties of the complex amplitude of an analytic signal of a white-light speckle pattern, under the assumption of a Gaussian random process, and give a formula for the autocorrelation function of the pseudophase associated with the complex analytic signal. Based on these results, we show mathematically that SDPOC has a performance advantage over conventional intensity-based correlation techniques. |
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Authors:
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Wei Wang; Nobuo Ishii; Steen G Hanson; Yoko Miyamoto; Mitsuo Takeda |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Applied optics Volume: 44 ISSN: 0003-6935 ISO Abbreviation: Appl Opt Publication Date: 2005 Aug |
Date Detail:
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Created Date: 2005-08-23 Completed Date: 2005-10-18 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0247660 Medline TA: Appl Opt Country: United States |
Other Details:
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Languages: eng Pagination: 4916-21 Citation Subset: - |
Affiliation:
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Department of Information and Communication Engineering, Laboratory for Information Photonics and Wave Signal Processing, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan. weiwang@ice.uec.ac.jp |
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