Bit number prediction for VLC coded DCT coefficients and its application in DV encoding/transcoding

Wanrong Lin, Dennis Bushmitch, Yao Wang, Johann Safar

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

Abstract

We present a simple and efficient scheme to predict the number of bits needed to code a DCT block with variable length code (VLC). Utilizing this new approach, a massive computing effort is averted in rate-constrained video encoding process. The scheme defines an easily computable parameter that has a strong correlation with the number of bits needed to code the DCT data. A second order polynomial is developed to approximate the correlation and is used to predict the number of VLC bits. This approach is further used to streamline the encoding/transcoding process for DV, and has a potential to be used in other DCT/VLC based coding schemes to facilitate rate control.

Original languageEnglish (US)
Title of host publication2001 IEEE Fourth Workshop on Multimedia Signal Processing
EditorsJ.-L. Dugelay, K. Rose, J.-L. Dugelay, K. Rose
Pages135-140
Number of pages6
StatePublished - 2001
Event2001 IEEE fourth Workshop on Multimedia Signal Processing - Cannes, France
Duration: Oct 3 2001Oct 5 2001

Publication series

Name2001 IEEE Fourth Workshop on Multimedia Signal Processing

Other

Other2001 IEEE fourth Workshop on Multimedia Signal Processing
CountryFrance
CityCannes
Period10/3/0110/5/01

ASJC Scopus subject areas

  • Engineering(all)

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