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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 11, Iss. 10 — Oct. 1, 2013
  • pp: 101101–

ESPI filtering method based on anisotropic coherence diffusion and Perona-Malik diffusion

Zhitao Xiao, Zhenbei Xu, Fang Zhang, Lei Geng, Jun Wu, Quan Yuan, and Jiangtao Xi  »View Author Affiliations


Chinese Optics Letters, Vol. 11, Issue 10, pp. 101101- (2013)


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Abstract

Noise reduction is one of the most important concerns in electronic speckle pattern interferometry (ESPI). According to partial differential equation (PDE) filtering theory, we present an anisotropic PDE noise-reduction model based on fringe structure information for interferometric fringe patterns. This model is based on coherence diffusion and Perona-Malik (P-M) diffusion. The former can protect the structure information offringe pattern, while the latter can effectively filter off the noise inside the fringes. The proposed model generated by the two diffusion methods helps to obtain good effects of denoising and fidelity. ESPI fringes and the phase pattern are tested. Experimental results validate the performance of the proposed filtering model.

© 2013 Chinese Optics Letters

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(110.6150) Imaging systems : Speckle imaging
(100.3008) Image processing : Image recognition, algorithms and filters

ToC Category:
Imaging Systems

Citation
Zhitao Xiao, Zhenbei Xu, Fang Zhang, Lei Geng, Jun Wu, Quan Yuan, and Jiangtao Xi, "ESPI filtering method based on anisotropic coherence diffusion and Perona-Malik diffusion," Chin. Opt. Lett. 11, 101101- (2013)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-11-10-101101


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