摘要总线传输视频信号有其特定的传输速率,而视频很大的话,会使传输不现实,所以这个时候就要进行视频压缩。视频压缩就是指通过特定的压缩技术,将某个视频格式的文件转换成另一种视频格式文件的方式。本论文着重对MPEG-2,H.263,H.264三种压缩标准进行了分析,并介绍了总线的背景信息和LonWorks总线传输的特性。通过调试3种视频压缩方式的算法,并输入视频和图像进行压缩过程仿真,得到压缩后的结果,通过对一些参数的比较,得出压缩算法的性能。在文章最后通过总线传输特性以及各压缩标准的性能比较可知,由H.263和H.264压缩过的视频信号比较适合LonWorks总线传输,这也对现实的总线传输有一定的指导意义。6153
关键词 视频压缩标准 MPEG-2 H.263 H.264 LonWorks总线
毕业设计说明书(论文)外文摘要
Title Study of the Transmission Technology of the Video Signal in LonWorks Bus
Abstract
Video signal transferring through bus has its transfer rate,but if the video is too large,the transfer will be unrealistic,so we should make a video compressiom.Video compression refers to a specific compression technology,which can convert a video format files to another video format files.This paper focuses on MPEG-2,H.263,H.264, describes the background information of the bus and the characteristics of LonWorks bus transfer.We can get compression results through debugging three kinds of video compression algorithm and simulation of the compression process by inputting video and image.Also,we can obtain the compression algorithm performance by the comparison of some parameters.At last,through the bus transfer characteristics as well as the compression standard of performance,it's easy to see that video signals compressed by the H.263 and H.264 is suitable for LonWorks bus transfer,which has some guidance to the reality of the bus transfer.
Keywords Video compression standard MPEG-2 H.263 H.264 LonWorks bus
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