摘要
提出一种基于域特征点预置乱熵编码的高保密性无线视频传输实现方法,基于计算机视觉库OpenCV处理,对域特征点进行相关,并对视频域特征点进行分离,形成原始域特征点库,采用预置乱算法对域特征点库进行置乱,使得域特征点库在不增加容量的情况下提高保密性,基于置乱后的域特征点库进行熵编码,实现高效压缩,兼顾视频保密性和压缩率要求。采用实际视频进行处理,结果显示,采用该方法进行无线视频加密传输,视频在相对保密性提高40%的情况下,压缩效率仅降低了1%,在高保密性无线视频传输中具有很好的应用价值。
A high security wireless video transmission method based on domain points feature chaos preset and entropy cod-ing is proposed, based on computer vision library OpenCV （Open Source Computer Vision Library） processing, the feature points related to the domain is divided, and the video domain feature points is separated from the original domain feature points library, using preset scrambling algorithm library domain scrambling feature points, the domain library of feature points is improved without increasing the capacity of confidentiality, then it is coded for efficient compression, thus the con-fidentiality and video compression ratio requirement are balanced. The actual video processing is used for test, the results show that the video relative security increases at 40%while the compression efficiency is only reduced by 1%, it has good application value in the high security of the wireless video transmission.
出处
《科技通报》
北大核心
2014年第8期203-205,共3页
Bulletin of Science and Technology
关键词
域特征点预置乱
高保密性
无线视频传输
domain points feature chaos preset high security wireless video transmission
