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.
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
.
DOI: 10.3969/j.issn.0255-8297.2019.03.004
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