三维光声图像重建的交替方向加权算法

doi:10.3969/j.issn.0255-8297.2019.03.004

Journal of Applied Sciences ›› 2019, Vol. 37 ›› Issue (3): 336-348.doi: 10.3969/j.issn.0255-8297.2019.03.004

• Signal and Information Processing • Previous Articles Next Articles

Three-Dimensional Photoacoustic Image Reconstruction Using Weighted Alternating Direction Method

QI Mengyu¹, ZHAO Lili¹, LIU Xin^1,2, YAN Zhuangzhi^1,2

1. School of Communication and Information Engineering, Shanghai University Shanghai 200444, China;
2. Shanghai Institute of Biomedical Engineering, Shanghai University, Shanghai 200444, China

Received:2018-04-25 Revised:2018-05-17 Online:2019-05-31 Published:2019-05-31

Abstract

Abstract: Based on conventional alternating direction method (ADM), an advanced method called weighted ADM is proposed for three-dimensional photoacoustic reconstructions, to obtain better images with fewer measurements. Take advantage of structural information of targets as priori information, the iteration process of ADM is improved and optimized, and the reconstructed images were compared with the sparse equations and least squares methods (LSQR) and conventional ADM method. Simulation analysis showed that the proposed method is able to provide photoacoustic images with better accuracy and better spatial resolution in the circumstance of under-sampling, compared with the two other methods.

Key words: image reconstruction, photoacoustic imaging, undersampling, sparse reconstruction

CLC Number:

TN911.73

QI Mengyu, ZHAO Lili, LIU Xin, YAN Zhuangzhi. Three-Dimensional Photoacoustic Image Reconstruction Using Weighted Alternating Direction Method[J]. Journal of Applied Sciences, 2019, 37(3): 336-348.

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Three-Dimensional Photoacoustic Image Reconstruction Using Weighted Alternating Direction Method

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