期刊名称：The International Arab Journal of Information Technology
印刷版ISSN：1683-3198
出版年度：2011
卷号：8
期号：4
出版社：Zarqa Private University
摘要：Re-quantization is a key technology for reducing the bit rate of compressed data. This reduction of the bit rate; and in certain cases may result in signal quality degradation. Therefore the proposed techniques used 9/7 wavelet transform before optimal re-quantization and finally, the output stream of coding symbols is entropy coded by lossless entropy coder; run-length encoding. Simulation results show that a better low Bit Rate has been obtained compared with other different techniques
关键词：Software engineering education; reflective learning and teaching; vector quantization; wavelet; 9/7 filter; general VQ; fingerprint; and optimal VQ.
