Maryam Moazeni Alex A. T. Bui Majid Sarrafzadeh Accelerating total variation regularization for matrix-valued images on GPUs. 137-146 2009 Conf. Computing Frontiers http://doi.acm.org/10.1145/1531743.1531765 conf/cf/2009 db/conf/cf/cf2009.html#MoazeniBS09