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SUBJECTIVE AND OBJECTIVE QUALITY EVALUATION OF LAR CODED ART IMAGES C. Strauss, F. Pasteau, F. Autrusseau, M. Babel, L. Bedat, O. Deforges
 

Summary: SUBJECTIVE AND OBJECTIVE QUALITY EVALUATION OF LAR CODED ART IMAGES
C. Strauss, F. Pasteau, F. Autrusseau, M. Babel, L. BŽedat, O. DŽeforges
IETR UMR CNRS 6164 - Image Group
INSA of Rennes, France
IRCCyN UMR CNRS 6597
Image and Videocommunications Team, France
ABSTRACT
Quality assessment is of major importance when designing and
testing an image/video coding technique. Compression perfor-
mances are usually evaluated by means of rate-distortion curves.
However, the PSNR is commonly employed as the distortion mea-
sure. We hereby present a full quality assessment benchmark for the
LAR (Locally Adaptive Resolution) coder. We conducted a subjec-
tive experiment, where nineteen observers were asked to assess the
perceptual quality of LAR coded images under normalized viewing
conditions. Furthermore, five objective quality assessment metrics
were used in order to determine the most suitable metric for the
LAR coder. Finally, both JPEG and JPEG200 images were gener-
ated and assessed during the subjective experiment in order to define
the optimal quality metric which should be used when comparing

  

Source: Autrusseau, Florent - IRCCyN-IVC, Ecole Polytechnique, Universite de Nantes

 

Collections: Biology and Medicine; Computer Technologies and Information Sciences