Shape VQ-based adaptive predictive lossless image coder

Authors

Jiazhao Wang, University of WollongongFollow
Philip Ogunbona, University of WollongongFollow
Golshah Naghdy, University of WollongongFollow

RIS ID

65861

Publication Details

Wang, J., Ogunbona, P. & Naghdy, G. (1997). Shape VQ-based adaptive predictive lossless image coder. IEEE Region 10 Annual International Conference: Speech and Image Technologies for Computing and Telecommunications (pp. 561-564). IEEE.

Abstract

A new shape adaptive predictive lossless image coder is proposed. Three classes of block shapes are delineated with associated “optimum” predctors. Each image is partitioned into sub-blocks that are classified into one of the three classes using vector quantisation. The encoder then employs the predictor corresponding to the class of the block under consideration. Performance evaluation of the proposed coder in comparison with four other lossless coders includmg lossless JPEG indicates its superiority.