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Proceedings Paper

Hierarchical coding of 2D mesh geometry and motion
Author(s): Peter J. L. van Beek; Isil Celasun; A. Murat Tekalp
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Paper Abstract

This paper proposes methods for construction and compression of hierarchical representations of 2D moving meshes. This representation consists of a hierarchy of Delaunay meshes, using image-based and shape-based criteria for mesh geometry simplification. The hierarchical compression technique is based on a nearest-neighbor ordering of mesh node points. This ordering serves to define the mesh boundary as well as a spatial prediction relation on the nodes, which is employed for differential node point location and motion vector coding. The proposed compression methods allow progressive transmission and quality scalability. The proposed hierarchical mesh representation can be applied in object-based video coding, storage and manipulation. Experimental results are provided comparing the compression performance of non-hierarchical coding and hierarchical coding, and evaluating the trade-off between mesh-based video object rendering quality and hierarchical mesh bitrate.

Paper Details

Date Published: 9 January 1998
PDF: 12 pages
Proc. SPIE 3309, Visual Communications and Image Processing '98, (9 January 1998); doi: 10.1117/12.298398
Show Author Affiliations
Peter J. L. van Beek, Univ. of Rochester (United States)
Isil Celasun, Univ. of Rochester (United States)
A. Murat Tekalp, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 3309:
Visual Communications and Image Processing '98
Sarah A. Rajala; Majid Rabbani, Editor(s)

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