A Simple Quality Assessment Index for Stereoscopic Images Based on 3D Gradient Magnitude

Figure 3

Examples of quality degraded left images and the corresponding gradient maps of “Balloons” test sequence. (a)~(d): (a) Gaussian blurred image; (b) horizontal gradient map of (a); (c) vertical gradient map of (a); (d) viewpoint gradient map of (a). DMOS = 29.435, 3D-GMS = 0.9720; (d)~(g): (e) JPEG compressed image; (f) horizontal gradient map of (e); (g) vertical gradient map of (e); (h) viewpoint gradient map of (e). DMOS = 30.609, 3D-GMS = 0.9803; (i)~(l): (i) WN distorted image; (j) horizontal gradient map of (i); (k) vertical gradient map of (i); (l) viewpoint gradient map of (i). DMOS = 30.130, 3D-GMS = 0.9793.

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