Multiframe blind deconvolution, super-resolution, and saturation correction via incremental EM

We formulate the multiframe blind deconvolution problem in an incremental expectation maximization (EM) framework. Beyond deconvolution, we show how to use the same framework to address: (i) super-resolution despite noise and unknown blurring; (ii) saturationcorrection of overexposed pixels that confound image restoration. The abundance of data allows us to address both of these without using explicit image or blur priors. The end result is a simple but effective algorithm with no hyperparameters. We apply this algorithm to real-world images from astronomy and to super resolution tasks: for both, our algorithm yields increased resolution and deconvolved images simultaneously.

• Type: Journal
• Year: 2010
• Where: ICIP
• Authors: Stefan Harmeling, Suvrit Sra, Michael Hirsch, Bernhard Schölkopf
• Keywords: Blind Deconvolution Problem, ICIP 2010, Image Processing, Images, Incremental Expectation Maximization