中国激光, 2018, 45 (3): 0307018, 网络出版: 2018-03-06
基于Lanczos双对角化的快速光声成像重建方法 
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Fast Photoacoustic Imaging Reconstruction Method Based on Lanczos Double Diagonalization
图 & 表
图 1. 单源仿真中正则化参数变化时两种滤波因子的曲线
Fig. 1. Curves of two filter factors versus regularization parameters in single source simulation
图 4. 真实单源分布和单源时不同算法的重建结果。(a)真实单源分布;基于(b) BP、(c) Tikhonov、(d) EF和(e) Lanczos-EF方法的重建结果
Fig. 4. Distribution of true single source and reconstruction results using different algorithms in case of signal source.(a) Distribution of true single source; reconstruction results obtained by (b) BP, (c) Tikhonov,(d) EF, and (e) Lanczos-EF methods
图 5. 单源时不同方法的量化结果比较。(a) PC;(b) CNR;(c)重建时间
Fig. 5. Comparison of quantitative results using different reconstruction methods in case of single source.(a) PC; (b) CNR; (c) reconstruction time
图 6. 真实双源分布和双源时不同算法的重建结果。(a)真实双源分布;基于(b) BP、(c) Tikhonov、(d) EF和(e) Lanczos-EF方法的重建结果
Fig. 6. Distribution of true two sources and reconstruction results using different algorithms in case of two sources.(a) Distribution of true two sources; reconstruction results obtained by (b) BP, (c) Tikhonov,(d) EF and (e) Lanczos-EF methods
图 7. 双源时不同方法的量化结果比较。(a) PC;(b) CNR;(c)重建时间
Fig. 7. Comparison of quantitative results using different reconstruction methods in case of two sources.(a) PC; (b) CNR; (c) reconstruction time
图 8. 真实血管图像分布和血管仿真结果。(a)真实血管图像分布;基于(b) BP、(c) Tikhonov、(d) EF和(e) Lanczos-EF方法的重建结果
Fig. 8. Distribution of true blood vessel image and simulation results of blood vessel. (a) Distribution of true blood vessel image; reconstruction results obtained by (b) BP, (c) Tikhonov, (d) EF and (e) Lanczos-EF methods
表 14种重建方法的量化结果比较
Table1. Comparison of quantitative results of four reconstruction methods
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张娜, 冯金超, 李哲, 贾克斌. 基于Lanczos双对角化的快速光声成像重建方法[J]. 中国激光, 2018, 45(3): 0307018. Zhang Na, Feng Jinchao, Li Zhe, Jia Kebin. Fast Photoacoustic Imaging Reconstruction Method Based on Lanczos Double Diagonalization[J]. Chinese Journal of Lasers, 2018, 45(3): 0307018.
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