摘要
HDTV的信源部分包括信源编码和信源解码两个部分,采用的1440×1250/50/2:1的HDTV格式,由于HDTV的数据量庞大,其编码要求有非常高的处理速度。所以为了降低编码的复杂度,并充分利用现有的有关芯片,这就必然要求并行处理,需要将每一幅HDTV图象先划分成四个子图,然后再同时分别对每一子图进行子图编码。
Because HDTV has a very great number of pixels, the speed of processing is very high. In order to reduce the complexity of the encoder of HDTV and to utilize the existing chips that the image of HDTV needs to be divided into four subimages. Then the subimages are encoded separately.
出处
《电视技术》
北大核心
1998年第4期6-8,共3页
Video Engineering
基金
国家科委HDTV专项资金资助