PYRAMID-STRUCTURED PROGRESSIVE IMAGE TRANSMISSION USING QUANTIZATION-ERROR DELIVERY IN TRANSFORM DOMAINS

Authors
Citation
Jh. Kim et Wj. Song, PYRAMID-STRUCTURED PROGRESSIVE IMAGE TRANSMISSION USING QUANTIZATION-ERROR DELIVERY IN TRANSFORM DOMAINS, IEE proceedings. Vision, image and signal processing, 143(2), 1996, pp. 132-136
Citations number
15
Categorie Soggetti
Engineering, Eletrical & Electronic
ISSN journal
1350245X
Volume
143
Issue
2
Year of publication
1996
Pages
132 - 136
Database
ISI
SICI code
1350-245X(1996)143:2<132:PPITUQ>2.0.ZU;2-L
Abstract
The authors propose a pyramid-structured progressive image transmissio n scheme in which quantisation error delivery is applied to the transf orm coefficients of the images represented by the pyramid. Quantisatio n error delivery makes it possible to reprocess at the lower level the information lost at each level of the pyramid. This is one important method for achieving lossless reproduction of an original image in pyr amid-structured progressive image transmission. When the images repres ented by the pyramid are compressed by the transform and the quantisat ion is applied to the transform coefficients, however, the existing ap proach in the literature requires the inverse transform of the quantis ation error, which is a computational overhead. To remove this drawbac k, the authors propose a new method to accomplish quantisation error d elivery directly in the transform domain. Using the proposed method, t he quantisation error at the transform coefficient of each level can b e delivered and Incorporated in the transform coefficient of the lower level. The simulation results show that the proposed method also has excellent coding performance for the intermediate levels of the pyrami d.