Title :
Motion estimation based on spatiotemporal warping for very low bit-rate coding
Author :
Malassiotis, Sotiris ; Strintzis, Michael G.
Author_Institution :
Dept. of Electr. Eng., Thessaloniki Univ., Greece
fDate :
10/1/1997 12:00:00 AM
Abstract :
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
Keywords :
finite element analysis; image coding; image sequences; motion compensation; motion estimation; adaptively higher bit allocation; elementary displacement vectors; high-motion activity; image sequence; isoparametric cubic finite elements; model refinement scheme; motion compensation; motion estimation algorithm; motion field function; spatiotemporal warping; very low bit-rate coding; Bit rate; Channel capacity; Communication networks; Finite element methods; Image coding; Image sequences; Motion estimation; Multimedia databases; Remote sensing; Spatiotemporal phenomena;
Journal_Title :
Communications, IEEE Transactions on
