Fig. 2From: A photoacoustic imaging reconstruction method based on directional total variation with adaptive directivityReconstructed images of the transverse texture from the FBP, the TV and the DDTV algorithm. The first to third rows refer to the FBP (a–c), the TV (d–f) and the DDTV (g–i) reconstructed images, respectively. The first to third columns refer to 180-view (a, d, g), 90-view (b, e, h) and 30-view (c, f, i) sampling results, respectivelyBack to article page