Abstract

Computing the motion or flow field is an illposed problem [Poggio et al. (1985)]. It can be regularized by the use of the smoothness assumption [Horn and Schunck (1981)]. The motion field should be the smoothest compatible with the data. However, these schemes perform badly in the presence of several objects moving in different directions. This major difficulty can be overcome by the introduction of binary line processes [similar to Geman and Geman (1984)] to model discontinuities in the flow field. If the local gradient between neighboring values of the flow field becomes too large, the appropriate line process is turned on, segmenting the velocity field at that location.

© 1987 Optical Society of America