1. A method implemented on a computing device having a processor and a memory for assessing perceptual objective video quality that predicts human visual video quality perception behaviours, comprising: producing a multi-dimensional quality map of a video being assessed, where the map indicates local quality variations of the video in a multi-dimensional space including one or more of two spatial dimensions, one scale dimension, one time dimension, and one distortion type dimension; and combining the multi-dimensional quality map into a scalar or vector-valued measure on the quality of the video being assessed.