Moving Object Tracking and 3D Measurement Using Two PTZ Cameras

This paper proposes a new method to track and measure 3D information of moving object by using two PTZ(Pan-tilt Zoom) cameras. In our 3D measurement method, the optical axis of two PTZ cameras are not required to be parallel or a fixed angle, the 3D information can be measured even though the pan and tilt of two PTZ cameras are changed freely. The SIFT features are detected in the tracking result of two PTZ cameras, due to SIFT feature is invariant to rotation, translation and scale variation, the corresponding points in the left and right image can be determined well. Therefore, our method can track the moving object and the 3D information of the object can be calculated simultaneity. The results of experiment performed in this study show the effect of our approach.