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Phase unwrapping for noisy phase map using localized compensator |
Applied Optics, Vol. 51, Issue 21, pp. 4984-4994 (2012)
http://dx.doi.org/10.1364/AO.51.004984
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Abstract
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.
© 2012 Optical Society of America
OCIS Codes
(030.4280) Coherence and statistical optics : Noise in imaging systems
(090.2880) Holography : Holographic interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(100.3175) Image processing : Interferometric imaging
(110.5086) Imaging systems : Phase unwrapping
(100.5088) Image processing : Phase unwrapping
ToC Category:
Image Processing
History
Original Manuscript: January 11, 2012
Revised Manuscript: May 21, 2012
Manuscript Accepted: May 28, 2012
Published: July 11, 2012
Citation
Satoshi Tomioka and Shusuke Nishiyama, "Phase unwrapping for noisy phase map using localized compensator," Appl. Opt. 51, 4984-4994 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-21-4984
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