On the contribution of the perceptual decomposition and spatial pooling to the performances of fidelity metrics

Based on the several visual fidelity metrics proposed in the literature, we sought to determine a metric having low complexity and high performances. A full reference quality metric has been designed and effort has been focused on the perceptual decomposition and spatial pooling. Four perceptual decompositions have been considered. Three of them include both radial and angular sensitivities while the fourth one analyzes the visual input by only a set of radial channels. For each of these decompositions, the performances of two new spatial pooling models have been compared with the most used Minkowski summation.