摘要
巡防系统具有远程视频图像传输的功能,考虑到视频信息传输过程中存在被恶意盗取造成信息严重缺失的情况,在视频传输前需对视频做加密处理。结合H.264视频压缩编码,采用Logistic混沌序列在CAVLC熵编码阶段对视频进行选择性加密,实现了加密与视频压缩编码兼容。并在Visual Studio 2013中完成了基于Logistic混沌视频加密的仿真,在MATLAB中通过计算视频图像加密前后的PSNR、SSIM及RGB直方图,分析了Logistic混沌视频加密性能。
The patrol prevention system has the function of remote video image transmission.Considering that there is a serious lack of information caused by malicious theft during the transmission of video information,the video needs to be encrypted before the video transmission.Combined with H.264 video compression coding,the logistic chaotic sequence is used to selectively encrypt the video in the CAVLC entropy coding stage,which is compatible with video compression coding.In Visual Studio 2013,the simulation based on logistic chaotic video encryption is completed.The performance of logistic chaotic video encryption is analyzed by calculating PSNR,SSIM and RGB histogram before and after video image encryption in Matlab.
作者
林英新
齐华
刘军
Lin Yingxin;Qi Hua;Liu Jun(ELectronic Information Engineering College,Xi’an Technological University,Xi’an 710021,China;Information Engineering College,Armed Police Engineering University,Xi'an 710086,China)
出处
《电子测量技术》
2020年第4期139-142,共4页
Electronic Measurement Technology
基金
陕西省科技厅项目(2018GY-007)资助。
