浅析多媒体数据压缩

Superficial Analys is of the Multi-media Data Compressing Technique

伴随着多媒体技术应用的日益普及,各种各样的信息(如声音,图像,文字等)在介质中占有越来越大的空间,如何对这些信息进行快速地检索,分类,存储,传送及显示,是当前所面临的最为迫切的问题之一。首先说明数据压缩的必要性和可行性,其次介绍数据压缩技术的分类。并详细分析了ADPCM编码、DCT变换。

With the multi-media technology applications gaining popularity,a wide range of information(such as voice,images,text,etc) are occupying more and more space in the media,how to information retrieval,classification,storage,transmission and display is currently facing one of the most urgent issues.firstly,Data compression is necessity and feasibility,secondly introduce the classification of data compression technology and detailed analysis of the ADPCM coding,DCT transform.