The dct was used as the main method of image transform coding for a long time 图像压缩编码长期以来利用离散余弦变换( dct )作为变换编码的主要技术。
In a word , bit allocation is the method deciding how to allocate definite bits to a variety of subbands 本课题着重研究基于小波变换的数字图像压缩编码中的比特分配问题。
Second , the paper presents the definition of the nearby principle and the most complexity of image partitions 2针对分形图像压缩编码耗时长的缺点，提出了就近原则和最大划块复杂度的概念。
In this dissertation , a image compression coding method based on wavelet transformation and vector quantization is discussed in detail 本文详细研究了基于小波变换和矢量量化的静态图像压缩编码方法。
The basic aim of image compression is minimizing the distortion with the needed bit - rate . the image compression based on wavelet transform is 图像压缩编码的根本目的,是在给定比特率下,使图像失真达到最小。
Iso has established a series of standards for video coding standard . mpeg - 4 is used as the coding and decoding standard in this system Iso已制定出一系列视频图像压缩编码标准，本系统采用mpeg - 4作为编解码标准。
Wavelet analysis have a variety of advantages , so there are a lot of image compression methods based on wavelet transform 图像压缩编码的根本目的，是在给定比特率( bitrate )下，力求使图像失真( distortion )达到最小。
Wavelet transform becomes the main subject of image compression coding for it has the advantage of describing non - steady signal 小波变换由于具有能够有效描述非平稳信号的独特优点而成为当前图像压缩编码研究的主要方向。
The purpose of digital image compress coding is to token the image within the limit of bit , and to maintain the quality of renew image 数字图像压缩编码的目的就是要以尽可能少的比特数来表征图像,同时又必须保持恢复图像的质量。
First , the paper introduces the importance and the feasibility of the video compression , and introduces the history and development of the video compression 首先，针对视频图像压缩编码的必要性和可能性进行介绍，并简单地介绍了图像编码的历史和发展现状。
