Referenceless Measure of Blocking Artifacts by Tchebichef Kernel Analysis

Abstract

This letter presents a Referenceless quality Measure of Blocking artifacts (RMB) using Tchebichef moments. It is based on the observation that Tchebichef kernels with different orders have varying abilities to capture blockiness. In a block manner, high-odd-order moments are computed to score the blocking artifacts. The blockiness scores are further weighted to incorporate the characteristic of Human Visual System (HVS), which is achieved by classifying the blocks into smooth and textured. Experimental results and comparisons demonstrate the advantage of the proposed method.