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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 7, NO. 2, APRIL 1997 391 Transactions Briefs
 

Summary: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 7, NO. 2, APRIL 1997 391
Transactions Briefs
Two- Versus Three-Dimensional
Object-Based Video Compression
A. Murat Tekalp, Yucel Altunbasak, and Gozde Bozdagi
Abstract-- This paper compares two-dimensional (2-D) and three-
dimensional (3-D) object modeling in terms of their capabilities and
performance (peak signal-to-noise-ratio and visual image quality) for
very low bitrate video coding. We show that 2-D object-based coding
with affine/perspective transformations and triangular mesh models can
simulate almost all capabilities of 3-D object-based approaches using
wireframe models at a fraction of the computational cost. Furthermore,
experiments indicate that a 2-D mesh-based coder­decoder performs
favorably compared to the new H.263 standard in terms of visual quality.
Index Terms--Model-based coding, MPEG Phase 4, three-dimensional
wireframe, two-dimensional mesh, video compression.
I. INTRODUCTION
The establishment of audio-visual conversational services over very
low bit-rate channels, such as the public switched telephone network
(PSTN) and wireless media, is an important emerging application

  

Source: Altunbasak, Yucel - School of Electrical and Computer Engineering, Georgia Institute of Technology

 

Collections: Engineering