A rate-distortion optimal video pre-processing algorithm

P. V. Karunaratne*, C. A. Segall, Aggelos K Katsaggelos

*Corresponding author for this work

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

16 Scopus citations

Abstract

Pre-processing algorithms improve the quality of a compression system by removing unimportant data before encoding. This enhances both the visual quality and coding efficiency of the system. In this paper, we cast the pre-processing problem in the operational rate-distortion framework. Filtering the displaced frame difference is the focus, and the proposed method couples the choice of the quantization scale to the response of the prefilter. Coding errors are then addressed by penalizing significant differences between coded blocks. Finally, experimental results illustrate the efficacy of the method within the context of an MPEG-2 coding scenario.

Original languageEnglish (US)
Title of host publicationIEEE International Conference on Image Processing
Pages481-484
Number of pages4
Volume1
StatePublished - Jan 1 2001
EventIEEE International Conference on Image Processing (ICIP) 2001 - Thessaloniki, Greece
Duration: Oct 7 2001Oct 10 2001

Other

OtherIEEE International Conference on Image Processing (ICIP) 2001
CountryGreece
CityThessaloniki
Period10/7/0110/10/01

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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