TY - JOUR T1 - Inversion of Electron Tomography Images Using $L^2$-Gradient Flows — Computational Methods JO - Journal of Computational Mathematics VL - 5 SP - 501 EP - 525 PY - 2011 DA - 2011/10 SN - 29 DO - http://doi.org/10.4208/jcm.1106-m3302 UR - https://global-sci.org/intro/article_detail/jcm/8491.html KW - Computational Inversion, Reconstruction, Electric Tomography. AB -

In this paper, we present a stable, reliable and robust method for reconstructing a three dimensional density function from a set of two dimensional electric tomographic images. By minimizing an energy functional consisting of a fidelity term and a regularization term, an $L^2$-gradient flow is derived. The flow is integrated by a finite element method in the spatial direction and an explicit Euler scheme in temporal direction. The experimental results show that the proposed method is efficient and effective.