Motion estimation based on spatiotemporal warping for very low bit-rate coding
Sotiris Malassiotis, Michael Gerassimos Strintzis · IEEE Transactions on Communications · 1997
In this paper, a motion estimation algorithm is presented, based on spatiotemporal warping of an image sequence. The motion field function is modeled by isoparametric cubic finite elements, depending on a set of elementary displacement vectors. A model refinement scheme is proposed for the adaptively higher bit allocation to motion information in locations with high-motion activity.