直方图约束下的康普顿散射图像重建

Histogram Constrained Reconstruction of Compton Scattering Image

利用康普顿散射光子能谱可以重建物质的电子密度图像。针对传统的连续近似算法收敛性能差,重建效果不理想,本文提出一种结合直方图约束和Tikhonov-Miller正则化的连续近似迭代算法,加快了收敛速度,改善了重建质量,并给出了计算机仿真的结果。

Compton scattering can be utilized for electron density imaging. The traditional successive approximation process algorithm has poor performance in convergence and the reconstruction result is inferiors. In this paper, an improved successive approximation process algorithm based on histogram constraint and Tikhonov-Miller regularization is proposed with the purpose of speeding up convergence and improving reconstruction result. Some simulation results are presented in this paper.