A new method of networked video surveillance with privacy area protection

Privacy area protection has become more important than before in networked video surveillance. In this paper, we address privacy area protection related issues. First, the characteristics of security camera with pan/tilt rotation mechanism are introduced and the privacy problems of video surveillance in public areas are analyzed. Then, a new method of protecting privacy areas is proposed to automatically adapt the panning rotation and tilting rotation of security camera. This method contains two steps to calculate the masked area matrix from predetermined privacy area matrix and some static/dynamic basic parameters. Experimental results have shown that the proposed method could work well in real-systems and protect the privacy areas efficiently.