一种基于深度卷积神经网络的摄像机覆盖质量评价算法

随着视频监控系统的大规模普及,视频监控系统的效用评价成为一个重要的研究课题.当前视频监控系统评价只考虑了摄像机的覆盖率,缺少对摄像机覆盖质量的量化评价.该文提出了一种基于深度卷积神经网络的监控摄像机覆盖质量评价算法.将摄像机覆盖质量评价问题转化为对摄像机所采集视频帧的质量评价问题,探讨了基于视频帧的摄像机覆盖质量等级的分级策略,标注了一个摄像机视频帧质量等级数据集; 设计了一种新颖的多维标签赋值方法,利用深度卷积网络学习鲁棒的视频帧表示,进一步基于支持向量回归机(SVR)学习视频质量回归函数,从而实现对摄像机覆盖质量的鲁棒估计.实验结果表明:该算法能够准确地对监控摄像机的覆盖质量进行自动评测,有效监测了摄像机监控质量的实时变化.

The Camera Coverage Quality Evaluation Algorithm Based on Deep Convolution Neural Network

Along with the popularity of video surveillance system,effect evaluation of video surveillance system becomes an important research item.Current evaluation of video surveillance system only takes camera coverage rate into consideration without quantitative evaluation of camera coverage quality.The article provides a surveillance camera coverage quality evaluation algorithm based on deep convolution neural network.The problem of camera coverage quality evaluation algorithm is transformed into the problem of quality evaluation on video frames collected by cameras.A classification strategy based on camera coverage quality levels of video frames is provided and a data set of quality levels of camera video frames is labeled.A multi-dimension label assignment method is designed for utilizing deep convolution neural network to learn a robust video frame indication,and furthermore,to learn a video quality regression function based on Support Vector Regression(SVR),thus a robust evaluation on video coverage quality is performed.The experiment result shows that the algorithm of the article can perform an automatic evaluation on the surveillance camera coverage quality precisely,and effectively monitors the real-time change of camera surveillance quality.