TY - JOUR T1 - Variational Iterative Algorithms in Photoacoustic Tomography with Variable Sound Speed JO - Journal of Computational Mathematics VL - 5 SP - 579 EP - 600 PY - 2014 DA - 2014/10 SN - 32 DO - http://doi.org/10.4208/jcm.1403-m4433 UR - https://global-sci.org/intro/article_detail/jcm/9905.html KW - Photoacoustic Tomography, Variational iterative algorithms. AB -

In this paper, we investigate the adjoint equation in photoacoustic tomography with variable sound speed, and propose three variational iterative algorithms. The basic idea of these algorithms is to compute the original equation and the adjoint equation iteratively. We present numerical examples and show the well performance of these variational iterative algorithms.