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On the Convergence of Generalized Simultaneous Iterative Reconstruction Algorithms

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2 Author(s)
Jiiong Wang ; Dept. of Electr. & Comput. Eng, Virginia Univ., Charlottesville, VA ; Zheng, Yibin

In this paper, we generalize the widely used simultaneous block iterative reconstruction algorithm and show that it converges, at a linear rate, to a weighted least-squares and weighted minimum-norm reconstruction. Our theoretical result provides a much simpler proof of the convergence properties obtained by Jiang and Wang and covers a much more general class of algorithms. The frequency domain iterative reconstruction algorithm is then introduced as a special application of our theory

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Image Processing, IEEE Transactions on  (Volume:16 ,  Issue: 1 )