1. Adelson, E. H. and Bergen, J. R.: Spatiotemporal energy models for the perception of motion,J. Opt. Soc. Amer. 2(2) (1985), 284?298.
2. Anandan, P.: Measuring visual motion from image sequences, Technical Report COINS-TR-87-21, COINS Department, University of Massachusetts, 1987.
3. Baugher, S. and Rosenfeld, A.: Corner detection localization in a pyramid, Technical Report CS-TR-1865, Computer Science, University of Maryland, College Park, 1987.
4. Brockett, R. W.: Grammians, generalized inverses, and the least-squares approximation of optical flow,J. Visual Comm. and Image Representation 1(1) (1990), 3?11.
5. Chaumette, F., Rives, P. and Espiau, B.: Positioning of a robot with respect to an object, tracking it and estimating its velocity by visual servoing, inProc. of the IEEE Int. Conf. on Robotics and Automation, April 1991, pp. 2248?2253.