標題: An integrated method in wavelet-based image compression
作者: Hsu, HH
Hu, YQ
Wu, BF
電控工程研究所
Institute of Electrical and Control Engineering
公開日期: 1-八月-1998
摘要: In this paper, we propose an integrated image compression method, which contains the discrete wavelet transform, scalar quantization and some lossless codings, to gain higher compression ratios while maintaining the image fidelity. The discrete wavelet transform has the properties of entropy reduction and energy concentration in high frequency subimages. An innovative approach, called revised rein-length coding, is proposed to improve the compression performance. The idea of this approach is to represent the appearance of symbols of the run-length cone in exponential expression for saving the storage in bits. The differential pulse code modulation is used to reduce the entropy of the lowest frequency subimage of the discrete wavelet transform and to achieve high compression effects losslessly. (C) 1998 The Franklin Institute. Published by Elsevier Science Ltd.
URI: http://dx.doi.org/10.1016/S0016-0032(97)00050-1
http://hdl.handle.net/11536/32492
ISSN: 0016-0032
DOI: 10.1016/S0016-0032(97)00050-1
期刊: JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
Volume: 335B
Issue: 6
起始頁: 1053
結束頁: 1068
顯示於類別:期刊論文


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  1. 000074307900005.pdf