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Proceedings Paper

Two- versus three-dimensional object-based coding
Author(s): A. Murat Tekalp; Yucel Altunbasak; Gozde Bozdagi
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Paper Abstract

We propose a new, efficient 2D object-based coding method for very low bit rate video compression based on affine motion compensation with triangular patches under connectivity constraints. We, then, compare this approach with a 3D object-based method using a flexible wireframe model of a head-and-shoulders scene. The two approaches will be compared in terms of the resulting bitrates, peak-signal-to-noise-ratio (PSNR), visual image quality, and execution time. We show that 2D object-based approaches with affine transformations and triangular mesh models can simulate all capabilities of 3D object-based approaches using wireframe models under the orthographic projection, at a fraction of the computational cost. Moreover, 2D object-based methods provide greater flexibility in modeling arbitrary input scenes in comparison to 3D object-based methods.

Paper Details

Date Published: 21 April 1995
PDF: 6 pages
Proc. SPIE 2501, Visual Communications and Image Processing '95, (21 April 1995); doi: 10.1117/12.206728
Show Author Affiliations
A. Murat Tekalp, Univ. of Rochester (United States)
Yucel Altunbasak, Univ. of Rochester (United States)
Gozde Bozdagi, Univ. of Rochester (United States)


Published in SPIE Proceedings Vol. 2501:
Visual Communications and Image Processing '95
Lance T. Wu, Editor(s)

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