Employing frequency-dependent property of the human visual systems (HVS) for DCT and other orthogonal transform coding

Nan Li; Luc Van Eycken; Andre J. Oosterlinck

doi:10.1117/12.177707

1 June 1994 Employing frequency-dependent property of the human visual systems (HVS) for DCT and other orthogonal transform coding

Nan Li, Luc Van Eycken, Andre J. Oosterlinck

Author Affiliations +

Proceedings Volume 2238, Hybrid Image and Signal Processing IV; (1994) https://doi.org/10.1117/12.177707
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

Besides the advantage in statistical efficiency, coding images in certain transform domain also facilitates the adoption of the sensitivity function of the human visual systems (HVS). This involves establishing in that transform domain a subjective distortion criterion in the form of weighted mean square error. In this paper, after a brief review over some existing methods for that purpose, the method used in a recent study is described. Through a special arrangement with DCT coding, it is examined in parallel with the method by Katto et al. The rate-distortion relation from the coding process indicates that the two methods are robust and close in efficiency.

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Nan Li, Luc Van Eycken, and Andre J. Oosterlinck "Employing frequency-dependent property of the human visual systems (HVS) for DCT and other orthogonal transform coding", Proc. SPIE 2238, Hybrid Image and Signal Processing IV, (1 June 1994); https://doi.org/10.1117/12.177707

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