Fig. 4From: Cosparsity-based Stagewise Matching Pursuit algorithm for reconstruction of the cosparse signals a Shepp-Logan Phantom image. b 22 sampled radial lines. c Noisy image with a SNR of 20 dB. d Location of non-zero elements in the difference map. e Recovery image using CSMP with s = 4000 and q = 50 and only using 22 radial lines. f Recovery image using GAP and only using 22 radial linesBack to article page