Fig. 8From: A photoacoustic imaging reconstruction method based on directional total variation with adaptive directivityReconstructed results of the Shepp–Logan phantom by the FBP, the TV and the DDTV, respectively. The first to third rows refer to reconstructed images by the FBP (a–d), the TV (e–h) and the DDTV (i–l), respectively. The first to fourth columns refer to results from 180-view (a, e, i), 90-view (b, f, j), 60-view (c, g, k), 30-view (d, h, l) sampling, respectivelyBack to article page