Pre-processing of compressed digital video

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

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

16 Scopus citations

Abstract

Pre-processing algorithms improve on the performance of a video compression system by removing spurious noise and insignificant features from the original images. This increases compression efficiency and attenuates coding artifacts. Unfortunately, determining the appropriate amount of pre-filtering is a difficult problem, as it depends on both the content of an image as well as the target bit-rate of compression algorithm. In this paper, we explore a pre-processing technique that is loosely coupled to the quantization decisions of a rate control mechanism. This technique results in a pre-processing system that operates directly on the Displaced Frame Difference (DFD) and is applicable to any standard-compatible compression system. Results explore the effect of several standard filters on the DFD. An adaptive technique is then considered.

Original languageEnglish (US)
Pages (from-to)163-174
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4310
DOIs
StatePublished - Jan 1 2001
EventVisual Communications and Image Processing 2001 - San Jose, CA, United States
Duration: Jan 24 2001Jan 26 2001

Keywords

  • Adaptive filtering
  • DFD
  • Displace frame difference
  • Image compression
  • Pre-processing

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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