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Reduced-Reference Image Quality Assessment Based on Discrete Cosine Transform Entropy

Yazhong ZHANG, Jinjian WU, Guangming SHI, Xuemei XIE, Yi NIU, Chunxiao FAN

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Summary :

Reduced-reference (RR) image quality assessment (IQA) algorithm aims to automatically evaluate the distorted image quality with partial reference data. The goal of RR IQA metric is to achieve higher quality prediction accuracy using less reference information. In this paper, we introduce a new RR IQA metric by quantifying the difference of discrete cosine transform (DCT) entropy features between the reference and distorted images. Neurophysiological evidences indicate that the human visual system presents different sensitivities to different frequency bands. Moreover, distortions on different bands result in individual quality degradations. Therefore, we suggest to calculate the information degradation on each band separately for quality assessment. The information degradations are firstly measured by the entropy difference of reorganized DCT coefficients. Then, the entropy differences on all bands are pooled to obtain the quality score. Experimental results on LIVE, CSIQ, TID2008, Toyama and IVC databases show that the proposed method performs highly consistent with human perception with limited reference data (8 values).

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E98-A No.12 pp.2642-2649
Publication Date
2015/12/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E98.A.2642
Type of Manuscript
PAPER
Category
Digital Signal Processing

Authors

Yazhong ZHANG
  Xidian University
Jinjian WU
  Xidian University
Guangming SHI
  Xidian University
Xuemei XIE
  Xidian University
Yi NIU
  Xidian University
Chunxiao FAN
  Xidian University

Keyword