Multi-Video Compression in Texture Space (WA-L3)

Author(s) : Gernot Ziegler (MPI Informatik, Saarbrücken, Germany) Hendrik P.A. Lensch (MPI Informatik, Saarbrücken, Germany) Naveed Ahmed (MPI Informatik, Saarbrücken, Germany) Marcus Magnor (MPI Informatik, Saarbrücken, Germany) Hans-Peter Seidel (MPI Informatik, Saarbrücken, Germany)

Abstract : We present a model-based approach to encode multiple synchronized video streams depicting a dynamic scene from different viewpoints. With approximate 3D scene geometry available, we compensate for motion as well as disparity by transforming all video images to object textures prior to compression. A two-level hierarchical coding strategy is employed to efficiently exploit inter-texture coherence as well as to ensure quick random access during decoding. Experimental validation shows that attainable compression ratios range up to 50:1 without subsampling. The proposed coding scheme is intended for use in conjunction with Free-Viewpoint Video and 3D-TV applications.

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