A Novel Binocular Vision System for Surveillance Application

Abstract

Visual surveillance system has been well studied in past decades. Because of the conflict between surveillance range and resolution of single-camera system, visual surveillance using multiple cameras has attracted increasing interest in recent years. In multi-camera systems, dual-camera system which contains active camera such as PTZ (pan-tilt-zoom) camera is the simplest and typical one. The superiority of this system lies in that it can obtain multi-resolution information and depth information. But as far as we know, few of the dual systems make full use of the two superiorities. In this paper, we propose a new binocular vision system which is composed of two PTZ cameras. Different from other systems, stereo rectification is used to establish correspondence between two image coordinates. Then, both global and detailed image information can be obtained. Furthermore, we use the depth information to help solve the occlusion problem in tracking. The experimental results on indoor surveillance environments have demonstrated the effectiveness and robustness of our system