摘要
从现有的传输网络出发 ,根据数字图像压缩比大的特点 ,论述数字图像在网络传输过程中产生误码或数据包丢失的原因 ,从理论上分三个方面阐明传输误差对数字图像序列产生的影响 。
Based on message transmission networks at present, according to the characteristic of digital picture large compression ratio, this paper discussed the reason of bit errors or data packet losing .how the transmitting errors effect digital visual sequence is elaborated in theory. Finally I introduced and studied some possible methods that can decrease errors.
出处
《中国有线电视》
北大核心
2003年第6期9-11,共3页
China Digital Cable TV
关键词
误码率
信元
量化
编码宏块
纠错编码
比特流
图像通信
bit ratio
information cell
quantification
coding macro-block
correct and coding
bit stream
