The purpose of this paper is to investigate the ability of the infimal convolution regular- ization in curing the staircasing artifacts of the TV model in the SPECT reconstruction. We formulate the problem of SPECT re...
supported by an NSF VIGRE grant (DMS-0240058);supported in part by NSF CAREER Award DMS-0748839 and ONR Grant N00014-08-1-1101;supported in part by NSF Grant DMS-0811188 and ONR Grant N00014-08-1-1101
Fixed-point continuation (FPC) is an approach, based on operator-splitting and continuation, for solving minimization problems with l1-regularization:min ||x||1+uf(x).We investigate the application of this a...