Title :
2-D mesh geometry and motion compression for efficient object-based video representation
Author :
van Beek, P.J.L. ; Tekalp, A.M. ; Puri, A.
Author_Institution :
Dept. of Electr. Eng., Rochester Univ., NY, USA
Abstract :
Methods for object-based compression and composition of natural and synthetic video content are currently emerging in standards such as MPEG-4 and VRML. This paper describes novel techniques for compression of 2-D triangular mesh geometry and motion, enabling efficient representation and manipulation of video content. Specifically, mesh geometry is compressed by predictive coding of mesh node locations. Mesh node motion vectors are compressed by predictive techniques as well. Preliminary results show that the mesh data can be coded at a fraction of the bits used to code a typical video object
Keywords :
code standards; data compression; discrete cosine transforms; image representation; motion compensation; prediction theory; telecommunication standards; transform coding; video coding; 2D triangular mesh geometry compression; MPEG-4; VRML; manipulation; mesh data coding; mesh node locations; motion compensated DCT coding; motion compression; natural video content; object-based composition; object-based compression; object-based video representation; predictive coding; standards; synthetic video content; Code standards; Geometry; Image coding; Interpolation; MPEG 4 Standard; Motion compensation; Predictive coding; Shape; Video compression; Video sequences;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.632151
