Optimal representation of motion fields for video compression

Abstract

A new video coding scheme in which an image sequence is fully represented through its motion field is introduced. The motivation behind the new coding scheme is that motion fields are generally more efficient representations of image sequences. We describe the new coding scheme, and present a new generalized and optimized representation through the motion field. An important aspect of the new coding approach is that we are free to choose parameters in the representation of the motion field. Our goal is to choose those parameters so that the motion field can be coded most efficiently. We describe our definition of the motion field, and illustrate how the parameters of the motion model can be chosen. We also present the results of applying those parameters to the coding procedure.