In this paper, we extend the Richardson-Lucy (RL) method to block-iterative versions, separated BI-RL, and interlaced\nBI-RL, for image deblurring applications. We propose combining algorithms for separated BI-RL to form block\nartifact-free output images from separately deblurred block images. For interlaced BI-RL to accelerate the iteration,\nwe propose an interlaced block-iteration algorithm on down-sampled blocks of the observed image. Simulation\nstudies show that separated BI-RL and interlaced BI-RL achieve desired goals in Gaussian and diagonal deblurrings.
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