文章基本信息

标题：Empirical Evaluation of Decomposition Strategy for Wavelet Video Compression
本地全文：下载
作者：Mr. Rohmad Fakeh ; Mr. Abdul Azim Abd Ghani
期刊名称：International Journal of Image Processing (IJIP)
电子版ISSN：1985-2304
出版年度：2009
卷号：3
期号：1
页码：31-54
出版社：Computer Science Journals
摘要：Abstract The wavelet transform has become the most interesting new algorithm for video compression. Yet there are many parameters within a wavelet analysis and synthesis which govern the quality of a decoded video. In this paper different wavelet decomposition strategies and their implications for the decoded video are discussed. A pool of color video sequences has been wavelet-transformed at different settings of the wavelet filter bank and quantization threshold and with decomposition of dyadic and packet wavelet transformation strategies. The empirical evaluation of the decomposition strategy is based on three benchmarks: a first judgment regards the perceived quality of the decoded video. The compression rate is a second crucial factor, and finally the best parameter setting with regards to the Peak Signal to Noise Ratio (PSNR). The investigation proposes dyadic decomposition as the chosen decomposition strategy.
关键词：Wavelet Analysis; Decomposition Strategies; Empirical Evaluation