Recovering and Analyzing Wide Range Human Motions Based on Mobile Cameras

This paper proposes a technique for recovering 3-D wide range human motions employing a set of uncaliblated mobile cameras. This paper also claims availability of such 3-D recovery in analyzing human motions. Three video cameras mounted on a mobile frame track and capture a human motion in a large field from three different directions. Feature points on the subject are registered in a measurement matrix. Since the frame motion contains rotation, the obtained measurement matrix is not a full matrix. The matrix is transformed into a full matrix by taking account of relative relation between the subject and the mobile frame. The 3-D coordinates of feature points on the subject are calculated by factorization with every sample time. Using the proposed technique. several wide range human motions recover in a 3-D way. Analysis of the motions shows significance of the technique.