A dual camera system for moving objects close-up tracking

Abstract

A single camera cannot provide a broad perspective and provide the details of monitoring targets at the same time. This paper design a dual camera system based on a wide-angle camera used to provide a wide-angle visual field and a close-up camera used to provide the details of moving targets. The real-time video data are firstly acquired based on DirectShow. Secondly, a Gaussian mixture model and Kalman filter are used to detect and track the moving targets, respectively. In order to realize the collaborative relationship among the dual camera, the conversion model among coordinate systems is established. Finally, the PID algorithm is used to driver the close-up camera to make the target locate in the center of its visual field. Experimental results demonstrate the effectiveness of the proposed method.