Research Papers: Imaging

Autocorrelation noise removal for optical coherence tomography by sparse filter design

[+] Author Affiliations
Hon Luen Seck, Ying Zhang

Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, 638075, Singapore

Yeng Chai Soh

Nanyang Technological University, School of Electrical and Electronic Engineering, Nanyang Avenue, 639798, Singapore

J. Biomed. Opt. 17(7), 076029 (Jul 27, 2012). doi:10.1117/1.JBO.17.7.076029
History: Received June 25, 2011; Revised March 27, 2012; Accepted June 25, 2012
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Abstract.  We present a reconstruction method to eliminate the autocorrelation noise (ACN) in optical coherence tomography (OCT). In this method, the optical fields scattered from the sample features are regarded as the response of a sparse finite impulse response (FIR) filter. Then the OCT reconstruction is formulated as one of identifying the parameters of a sparse FIR filter, which are obtained via an 1 optimization with soft thresholding. The experimental results show that the proposed method can obtain OCT reconstruction results with effective attenuation of ACN.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Hon Luen Seck ; Ying Zhang and Yeng Chai Soh
"Autocorrelation noise removal for optical coherence tomography by sparse filter design", J. Biomed. Opt. 17(7), 076029 (Jul 27, 2012). ; http://dx.doi.org/10.1117/1.JBO.17.7.076029


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