Computer vision for interactive computer graphics

W. T. Freeman, D. Anderson, P. Beardsley, C. Dodge, H. Kage, K. Kyuma, Y. Miyake, M. Roth, K. Tanaka, C. Weissman, W. Yerazunis
IEEE Computer Graphics and Applications, volume 18, number 3, May-June, pp. 42-53, 1998