Fast and efficient mode and quantizer selection in the rate distortion sense for H.263

Guido M. Schuster*, Aggelos K. Katsaggelos

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

40 Scopus citations

Abstract

In this paper, a fast and efficient method for selecting the encoding modes and the quantizers for the ITU H.263 standard is presented. H.263 is a very low bit rate video coder which produces satisfactory results at bit rates around 24 kbits/second for low motion quarter common intermediate format (QCIF) color sequences such as 'mother and daughter.' Two major target applications for H.263 are video telephony using public switched telephone network lines and video telephony over wireless channels. In both cases, the channel bandwidth is very small, hence the efficiency of the video coder needs to be as high as possible. The presented algorithm addresses this problem by finding the smallest frame distortion for a given frame bit budget. The presented scheme is based on Lagrangian relaxation and dynamic programming (DP). It employs a fast evaluation of the operational rate distortion curve in the DCT domain and a fast iterative search which is based on a Bezier function.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages784-795
Number of pages12
Edition2/-
StatePublished - Dec 1 1996
EventVisual Communications and Image Processing'96. Part 2 (of 3) - Orlando, FL, USA
Duration: Mar 17 1996Mar 20 1996

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Number2/-
Volume2727
ISSN (Print)0277-786X

Other

OtherVisual Communications and Image Processing'96. Part 2 (of 3)
CityOrlando, FL, USA
Period3/17/963/20/96

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Schuster, G. M., & Katsaggelos, A. K. (1996). Fast and efficient mode and quantizer selection in the rate distortion sense for H.263. In Proceedings of SPIE - The International Society for Optical Engineering (2/- ed., pp. 784-795). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2727 , No. 2/-).