Fig. 14From: Algorithms for joint activity–attenuation estimation from positron emission tomography scatterCrosstalk study of a low-resolution, high-attenuation (human-sized) phantom (as in Fig. 4): a true activity and attenuation; b activity and attenuation used to initialize MLAA; c activity and attenuation after apparent MLAA convergence, used to initialize the 4-algorithm; and d activity and attenuation after 1000 sub-iterations (500 iterations) of the 4-algorithmBack to article page