Accelerated augmented Lagrangian method for few-view CT reconstruction

Junfeng Wu; Xuanqin Mou

doi:10.1117/12.911783

3 March 2012 Accelerated augmented Lagrangian method for few-view CT reconstruction

Junfeng Wu, Xuanqin Mou

Proceedings Volume 8313, Medical Imaging 2012: Physics of Medical Imaging; 83132N (2012) https://doi.org/10.1117/12.911783
Event: SPIE Medical Imaging, 2012, San Diego, California, United States

Abstract

Recently iterative reconstruction algorithms with total variation (TV) regularization have shown its tremendous power in image reconstruction from few-view projection data, but it is much more demanding in computation. In this paper, we propose an accelerated augmented Lagrangian method (ALM) for few-view CT reconstruction with total variation regularization. Experimental phantom results demonstrate that the proposed method not only reconstruct high quality image from few-view projection data but also converge fast to the optimal solution.

Citation Download Citation

Junfeng Wu and Xuanqin Mou "Accelerated augmented Lagrangian method for few-view CT reconstruction", Proc. SPIE 8313, Medical Imaging 2012: Physics of Medical Imaging, 83132N (3 March 2012); https://doi.org/10.1117/12.911783

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