Broad support exists with regard to the assertion that optic flow is constrained by some conservation principle. Otherwise, if the raw image is a density, we must interpret the filter as a scalar with regard to Lie derivation. This is the plain consequence of duality. This result does not account for the essential role of duality. The motion constraint equation for optical flow .
Classical derivatives are ill posed.
B. G. Schunck. The motion constraint equation for optical flow . Thus , our approach does not make the second assumption given above. Our model parameterization assumes motion of a contour is a combination of translational and rotational motion parallel to the image plane, i.e. the motion is planar. The model parameterization assumes that motion in the scene is parallel to the image plane, i.e. there is no rotation in depth.