Filtered back-projection reconstruction of photo-acoustic imaging based on an modified wavelet threshold function

Zhong Ren; Guodong Liu; Zhen Huang

doi:10.1117/12.2243976

19 October 2016 Filtered back-projection reconstruction of photo-acoustic imaging based on an modified wavelet threshold function

Zhong Ren, Guodong Liu, Zhen Huang

Author Affiliations +

Proceedings Volume 10155, Optical Measurement Technology and Instrumentation; 101550D (2016) https://doi.org/10.1117/12.2243976
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

In this study, the filtered back-projection algorithm was used to reconstruct the photoacoustic imaging. To improve the quality of the reconstructed image, the wavelet threshold denoising method was combined into the filtered back-projection reconstruction algorithm. To obtain the reconstructed effect of the photoacoustic imaging, a modified wavelet threshold function was proposed. To verify the feasibility of the modified wavelet threshold function, the simulation experiments of the standard test phantom were performed by using three different wavelet threshold functions. Compared with the soft- and hard-threshold functions, the modified wavelet threshold function has better denoised and reconstructed effect. Moreover, the peak signal-to-noises ratio (PSNR) value of the modified function is largest, and its mean root square error (MRSE) value is lest than that of two others. Therefore, the filtered back-projection reconstruction algorithm combined with the modified wavelet threshold function has potential value in the reconstruction of the photoacoustic imaging.

Citation Download Citation

Zhong Ren, Guodong Liu, and Zhen Huang "Filtered back-projection reconstruction of photo-acoustic imaging based on an modified wavelet threshold function", Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 101550D (19 October 2016); https://doi.org/10.1117/12.2243976

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