In this paper we describe the properties of independent components of optical ow of moving objects. Video sequences of objects seen by an observer moving at various angles, directions and distances are used to produce optical ow maps. These maps are then processed using independent component analysis, which yields lters that resemble the receptive elds of dorsal medial superior temporal cells of the primate brain. Contraction, expansion, rotation and translation receptive elds have been identi ed. Our results support Barlow's sensory coding theory and are in-line with other work on independent components of image and video intensities.
Marwan A. Jabri, Ki-Young Park, Soo-Young Lee, Ter