Advertisement

Rate-Constrained Coder Control

  • Thomas Wiegand
  • Bernd Girod
Part of the The Springer International Series in Engineering and Computer Science book series (SECS, volume 636)

Abstract

One key problem in video compression is the operational control of the source encoder. This problem is compounded because typical video sequences contain widely varying content and motion, necessitating the selection between different coding options with varying rate-distortion efficiency for different parts of the image. The task of coder control is to determine a set of coding parameters, and thereby the bit-stream, such that a certain rate-distortion trade-off is achieved for a given decoder. This chapter focuses on coder control algorithms for the case of error-free transmission of the bit-stream. A particular emphasis is on Lagrangian bit-allocation techniques, which have emerged as a widely accepted approach. The popularity of this approach is due to its effectiveness and simplicity.

Keywords

Motion Vector Motion Estimation Mode Decision Coder Control Inter Mode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Thomas Wiegand
    • 1
  • Bernd Girod
    • 2
  1. 1.Heinrich Hertz InstituteGermany
  2. 2.Stanford UniversityUSA

Personalised recommendations