Image quality assessment based on energy of structural distortion

Authors:
Jianxin Pang;Rong Zhang;Lu Lu;Zhengkai Liu
Affiliations:
MOE-Microsoft Key Laboratory of Multimedia Computing and Communication, Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, Anhui, P ...;MOE-Microsoft Key Laboratory of Multimedia Computing and Communication, Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, Anhui, P ...;MOE-Microsoft Key Laboratory of Multimedia Computing and Communication, Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, Anhui, P ...;MOE-Microsoft Key Laboratory of Multimedia Computing and Communication, Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, Anhui, P ...
Venue:
PCM'07 Proceedings of the multimedia 8th Pacific Rim conference on Advances in multimedia information processing
Year:
2007

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Abstract

Objective image quality assessment (QA), which automatically evaluates the image quality consistently with human perception, is essentially important for numerous image and video processing applications. We propose a new objective QA method for full reference model based on the energy of structural distortion (ESD). Firstly, we collect the characteristics of the structural information by the normalization processing for the reference image. Secondly, the information of ESD is gained by projecting the image onto the characteristic signal of the structural information independently. Finally the objective quality score is obtained by computing the differences of ESD between the reference and distorted images. In this paper, we propose one implementation with simple parameters for our image QA. Experimental results show that the proposed method is well consistent with the subjective quality score.