摘要
大数据时代,针对海量视频在线实时传送速率的要求,需要将视频数据尽可能高压缩率的进行视频编码,以达到快速实时传输目的,搭建了基于TMS320C6678处理器的实时编码传输平台。系统采用千兆网相机、HOST台式主机、TMS320C6678 DSP开发板、笔记本终端VLC HEVC软件实时显示,通过以太网相连。在保证视频清晰度的条件下,系统测试结果:HEVC全新的编码方式有效提升了视频压缩率,仅用原先的一半带宽即可播放相同质量的视频,实时性高。结论:传统的H. 264视频编码可以获得150倍的压缩比,新一代视频编码HEVC在相同的视频质量基准下,视频容量减少大约39～74%,大大的提高了视频压缩率,并且还能获得更好的信噪比(PSNR)。
In order to meet the requirement of real-time transmission rate of massive video data in the big data era, it is necessary to encode the video code with high compression ratio so as to achieve the purpose of fast real-time transmission. A real-time coding transmission platform based on TMS320C6678 processor is set up. Mega network camera, HOST desktop host, TMS320C6678 DSP development board are used, and VLC HEVC software in notebook terminal completes real-timely display, the system is connected by Ethernet. Under the condition of ensuring the video definition, the HEVC new encoding effectively enhances the video compression rate, only half of the original bandwidth can play real-timely the same quality video. Traditional H.264 video encoding achieves a 150x compression ratio. Next-generation video coding, HEVC, will reduce video capacity by approximately 39%-74% at the same video quality standard, it dramatically improves video compression rate and gets a better effect in signal to noise ratio （PSNR）.
作者
乔莉
李博
舒行科
孟祥飞
QIAO Li;LI Bo;SHU Xingke;MENG Xiangfei(Key Laboratory of Instrumentation Science ＆ Dynamic Measurement,Ministry of Education,North University,Taiyuan 030051,China;No.33 Research Institute of China Electronics Technology Group Corporation,Taiyuan 030006,China)
出处
《实验室研究与探索》
CAS
北大核心
2018年第11期129-132,共4页
Research and Exploration In Laboratory
基金
国家自然科学基金资助项目(61471325)
