综述电视信号的数字化与码率压缩  

On the Digital and Coding Compression of TV Signal

作　　者：李翠花[1] 吴疆 

机构地区：[1]合肥学院基础教学部,合肥230022 [2]合肥海尔信息产品有限公司开发部,合肥230601

出　　处：《合肥学院学报（自然科学版）》2005年第4期50-52,共3页Journal of Hefei University :Natural Sciences

摘　　要：由于电视图像包含的信息十分巨大,因此为了便于电视信号的存储和传输,需要对图像信息进行数字化和码率压缩。介绍了电视图像信号压缩编码的几种方法:降低抽样频率、差值脉冲编码、线性变换编码、离散余弦变换。Owing to enormous information of the image, and because of the memory and transmission of the picture, condensation of image signal is demanded. The purpose of condensation is to use as few as codes to denote and construct the original image. The means of coding compression is as follows： sample frequency coding reduction, different predictive coding, linearity transform coding, discrete cosine transform.

关 键 词：图像信号 电视信号 数字化 压缩编码 

分 类 号：TN911.7[电子电信—通信与信息系统]