嵌入无损编码的海量视频数据存储系统设计  

Massive video data storage system design with embedded lossless encoded

作　　者：陈亭玉 钱慧[1] 

机构地区：[1]福州大学物理与信息工程学院,福建福州350100

出　　处：《电视技术》2016年第4期52-55,59,共5页Video Engineering

基　　金：可重构的多格式超清视频转换数字显示系统项目(2013-G-85);福建省教育厅专项(WL2013-31)

摘　　要：随着当代视频显示分辨率的不断提升，视频显示系统需要实时缓存的数据量越来越大。DDR等实时存储设备受到自刷新率等存储模式的限制，难以满足视频显示系统实时稳定存储的需要。海量视频数据的实时存储成为显示系统亟待解决的关键问题。根据高清视频单帧图像内像素间的空间相关性高的特点，提出了一种内嵌算术编码及哈夫曼编码的嵌入式混合压缩数据存储方法。在传统的视频高速DDR存储控制系统中，首先对单帧视频进行压缩，通过直接减少系统的实时存储量，解决海量视频存储瓶颈的问题。经过试验测试证明，该混合压缩数据存储方法不仅减少了所需存储的数据量，且其数据还原与经典的熵编码比较压缩还原后尸5ⅣR值平均高出1～2dB。Contemporary, With the rising video display resolution, the real-time data of video display systems need to cache is growing. At the same time, DDR or other real-time storage device is limited by the refresh rate and other storage modes, so it＇ s hard to meet the real-time video display system stable storage. To store amounts of data is a key issue to be solved, in a real-time video display system. According to pixels high correlation of the spatial definition video within a single frame of the image, this pa- per gives an embedded arithmetic mix the coding and Huffman coding embedded compressed data storage method. In the traditional high-speed video DDR storage control system, a single frame of video is compressed by directly reducing the amount of real-time storage systems. It could solve the bottlenecks of massive video storage. The test proves that the mixed compressed data storage ap- proach not only reduces the amount of data needed to store and restore its data compared with the classical entropy coding compression reducing PSNR value by an average of 1-2 dB.

关 键 词：视频显示系统 存储控制系统 帧 编码 

分 类 号：TN873[电子电信—信息与通信工程]