Multi-video compression in texture space using 4D SPIHT

Author

Ziegler, Gernot ; Lensch, Hendrik P A ; Magnor, Marcus ; Seidel, Hans-Peter

Author_Institution

MPI Informatik, Saarbrucken, Germany

fYear

2004

fDate

29 Sept.-1 Oct. 2004

Firstpage

39

Lastpage

42

Abstract

We present a model-based approach to encode multiple synchronized video streams which show a dynamic scene from different viewpoints. By utilizing 3D scene geometry, we compensate for motion and disparity by transforming all video images to object textures prior to compression. A 4D SPIHT wavelet compression algorithm exploits interframe coherence in both temporal and spatial dimension. Unused texels increase the compression, and a shape mask can be omitted at the cost of higher decoder complexity. The proposed coding scheme is intended for use in conjunction with free-viewpoint video and 3D-TV applications.

Keywords

computational complexity; data compression; image texture; motion compensation; video coding; wavelet transforms; 3D scene geometry; 4D SPIHT; decoder complexity; free-viewpoint video; interframe coherence; model-based approach; multivideo compression; texture space; video coding; video image; wavelet compression algorithm; Coherence; Compression algorithms; Costs; Decoding; Geometry; Image coding; Layout; Shape; Streaming media; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Signal Processing, 2004 IEEE 6th Workshop on

Print_ISBN

0-7803-8578-0

Type

conf

DOI

10.1109/MMSP.2004.1436410

Filename

1436410