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为了加快广电行业向高清转换的速度,广电总局要求各级电视台加快高标清同播频道的建设速度,而如何构建高标清同播频道,使得高清和标清播出均达到最佳的收视效果,是很多电视台即将面临的现实问题。本文主要就高标清混合制播下的高标清画面幅型变换进行分析,并就高标清一体化播出系统中AFD的具体应用做一探讨。
In order to speed up the broadcasting industry to high-definition conversion rate, SARFT requires all levels of television stations to speed up the SD broadcasting channel construction speed, and how to build high standard definition oncast channel, making HD and SD broadcast to achieve the best viewing results are Many television stations are facing real problems. In this paper, we mainly analyze the format conversion of high standard definition (HDTV) frames in high standard definition mixing system and discuss the specific application of AFD in high definition standard definition broadcasting system.