无线传感器网络中视频质量评估方法  

Video Quality Measure Based on Wireless Senior Network

作　　者：饶文碧[1] 李颖姝[1] 

机构地区：[1]武汉理工大学计算机科学与技术学院,武汉430070

出　　处：《计算机与数字工程》2009年第4期114-117,共4页Computer & Digital Engineering

基　　金：[湖北省科技攻关计划]新型智能传感识别装置研发及其在典型物流系统中的应用项目(编号:2007AA101C46)资助

摘　　要：视频在无线传感器网络传输,由于网络的不稳定,可能使视频质量受到一定的影响。在人类视觉模型的基础上,提出一个改进的无参考质量评估算法,直接通过收到的图像,判断视频质量的好坏。较之当前广泛使用的视频评估算法—媒体延迟指标而言,大大提高在网络丢包时,对于视频质量评估的准确性。评估结果接近人眼观察的效果,并且可以大规模投入使用,具有较强现实意义和商业使用价值。The packets losing rate when the video sequence transport on wireless senior network, will affect the quality of received video. This paper addresses the problem of quality estimation of video sequences. It is improved No- Reference algorithm which is based on a human vision system. Directly use the image sequences to judge whether the video is damaged or not. Compared this improved assessment algorithm with the media delay index which is also a no-reference measure algorithm based on the situation of the transmission network, the result is closc to the assessment with human eyes and will obviously increase the accuracy when the packets losing rate is very high. So this method can put into using with large-scale, and with highly commercial value.

关 键 词：无线传感器网络 人眼视觉模型 无参考 视频质量评估 媒体延迟指标 

分 类 号：TN919[电子电信—通信与信息系统]