標題: On the perceptual interband correlation for octave subband coding
作者: Liu, CM
Wang, CN
資訊工程學系
Department of Computer Science
公開日期: 1998
摘要: The ability of human vision systems to distinguishing gray values of pixels depends on factors such as background luminance, the nearby image contents, etc. Thus, for any image, there are various representations subjectively judged to be the same with the original. This subjective phenomenon provides the conjecture that some of the various representations may provide the statistical interband correlation instead of just the perceptual similarity with the original image. This conjecture motivates the work to exploit the desired representations and check the associated new merits. This paper demonstrates that the most desired representation can be systematically exploited such that the interband correlation of octave subbands is increased. We present two methods with different complexity and show the resultant coding gains. The gains indicate that there exist amounts of perceptual correlation applicable to image coding despite that the original interband correlation has been considered low.
URI: http://hdl.handle.net/11536/19546
ISBN: 0-7803-4455-3
期刊: ISCAS '98 - PROCEEDINGS OF THE 1998 INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-6
起始頁: C166
結束頁: C169
Appears in Collections:Conferences Paper