Figure 6From: A compressed sensing-based iterative algorithm for CT reconstruction and its possible application to phase contrast imaging Computation of sensing matrix weights model. Eight arrow lines represent X-rays. The rays at different angles are labeled by different letters a, b, c, and d. The subscripts represent the detector array's position. α, (90- α), (90+ α) and (180- α): angles from X-axis to X-rays.Back to article page