Title :
Dual-mode image quality assessment metric
Author :
Chin, F.Z.C. ; Xydeas, C.S.
Author_Institution :
Dept. of Commun. Syst., Lancaster Univ., UK
Abstract :
This paper presents a perceptual image quality assessment metric based on the visible differences predictor (VDP) (Daly, 1993). The proposed metric operates in two modes. In quality mode, the metric produces a single value representation of the overall visible image quality (VIQ), whereas in distortion mode, the metric provides four distortion values each associated with a specific type of image content. The correlation coefficient between the objective VIQ and subjective test results is 0.96, compared to 0.86 obtained by the PSNR measure.
Keywords :
image classification; visual perception; correlation coefficient; distortion mode; image content; image quality assessment metric; image region classification; mean opinion score; objective VIQ; perceptual image quality; quality mode; single value representation; subjective test results; visible differences predictor; visible image quality; Distortion measurement; Frequency; Humans; Image edge detection; Image quality; Nonlinear distortion; PSNR; Pixel; Testing; Visual system;
Conference_Titel :
Video/Image Processing and Multimedia Communications 4th EURASIP-IEEE Region 8 International Symposium on VIPromCom
Print_ISBN :
953-7044-01-7
DOI :
10.1109/VIPROM.2002.1026643
