摘要
作为传播信息的载体和媒介,电视媒体能够丰富人们的视听感受,使人们能够生动、形象地获取资讯。电视技术不断地发展,实现了从黑白到彩色、从模拟向数字化的变革。数字电视因信号质量好、清晰度高、传输稳定及可交互的特点,获得普遍应用。由于信号数据量过大,需占用较大的带宽,需要对数字电视信号进行压缩。文章研究了MPEG2帧内编码在数字电视图像压缩中的应用。MPEG2帧内压缩技术能够提高压缩效率,使广播电视资源得到充分利用。
As a carrier and media of information transmitter,TV can provide vivid images for audiences.With the development of technology,TV has been made progress day by day.The digital TV is one of the most important achievements of TV technology.It can provide clear pictures and stable signals.However,through digital technology,it produces much data than before.The frames compression technology of MPEG2 standard can improve the efficiency of digital TV compression and make better use of broadcast and TV resources.
作者
张华
Zhang Hua(CTV-STVP, Beijing 100038, China)
出处
《无线互联科技》
2018年第21期13-15,共3页
Wireless Internet Technology
作者简介
张华(1980-),女,北京人,工程师,硕士;研究方向:卫星电视,计算机网络。
