Two- versus three-dimensional object-based coding

A. Murat Tekalp; Yucel Altunbasak; Gozde Bozdagi

doi:10.1117/12.206728

21 April 1995 Two- versus three-dimensional object-based coding

A. Murat Tekalp, Yucel Altunbasak, Gozde Bozdagi

Proceedings Volume 2501, Visual Communications and Image Processing '95; (1995) https://doi.org/10.1117/12.206728
Event: Visual Communications and Image Processing '95, 1995, Taipei, Taiwan

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.

Citation Download Citation

A. Murat Tekalp, Yucel Altunbasak, and Gozde Bozdagi "Two- versus three-dimensional object-based coding", Proc. SPIE 2501, Visual Communications and Image Processing '95, (21 April 1995); https://doi.org/10.1117/12.206728

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