摘要
随着数字化技术与计算机技术的发展,数字信号已取代了传统的模拟信号,成为视频信息存储与传输的主要方式。为解决数字信号编码的数据膨胀问题,各类视频标准均采用了高效的压缩算法对数字信号进行编码压缩,本文详细分析当前主流的视频标准MPEG标准的核心压缩算法,并对视频压缩算法的技术趋势进行了展望。
With the development of digital technology and computer technology,traditional analog signal has been replaced by digital signal,and now digital signal become the main way of the video information storage and transmission.To solve the problem of data expansion which happened in signal video encoding,various types of video standards use efficient compression algorithms for the digital signal compression encoding.This paper gives a detailed analysis of the compression algorithm which has been used in the widespread video standard,MPEG,and gives a outlook of the trend of video compression technology.
出处
《计算机与现代化》
2012年第10期92-95,115,共5页
Computer and Modernization
关键词
视频压缩
DCT变换
差分编码
游程编码
动作补偿
video compression
DCT transform
differential encoding
run length encoding
motion compensation
