title: On kineopsis and computation of structure and motion.
abstract: This correspondence deals with the computation of structure and motion of rigid objects in space from image positions and optical flow. A test for rigid motion of objects in space is introduced which yields a new formulation of the problem. Assuming a central projection model for the viewing system, it is shown that image positions and optical flow at four points can achieve this perception.
authors.affiliation: INRS-Telecommunications, Ile-des-Soeurs, P.Q., Canada; Image and Signal Analysis, University of Texas at Austin, Austin, TX 78712.
authors.forename: A
authors.initials: A
authors.lastname: Mitiche