Heliograph Imaging Based on Total Variation Constraint and Nonlocal Operator

Figure 5

(a) The image of Cygnus A. (b) Reconstructed image using CSC algorithm (RelErr = 75.2%, SNR = 18.2). (c) Reconstructed image using CS algorithm (RelErr = 23.5%, SNR = 10.2). (d) Reconstructed image using our method (RelErr = 15.7%, SNR = 23.6).

(a)

(b)

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(d)