Share Email Print

Proceedings Paper

SNR scalability by transform coefficient refinement for block-based video coding
Author(s): Till Halbach; Thomas R. Fischer
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Various techniques for SNR scalability in hybrid block-based video coding exist in the literature and in different standards. A new approach based on transform coefficient refinement is proposed in this article. The coefficient difference is computed after quantization, subsequently entropy-encoded, and transmitted for reconstruction of a high-quality layer at the decoder. The approach achieves in most cases only a moderate increase in bit rate as compared to other schemes. The bit rate of our two-layer framework converges towards the rate of a single-layer system as the quality gap between both layers increases. The gains come at the cost of increased computational complexity and memory requirements.

Paper Details

Date Published: 23 June 2003
PDF: 6 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.503252
Show Author Affiliations
Till Halbach, Norwegian Univ. of Science and Technology (Norway)
Thomas R. Fischer, Washington State Univ. (United States)

Published in SPIE Proceedings Vol. 5150:
Visual Communications and Image Processing 2003
Touradj Ebrahimi; Thomas Sikora, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?