Motion-compensated noise estimation for effective video processing

Byung Cheol Song, Nak Hoon Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

For effective noise removal prior to video processing, noise power or noise variance of an input video sequence needs to be found exactly, but it is actually a very difficult process. This paper presents an accurate noise variance estimation algorithm based on motion compensation between two adjacent noisy pictures. Firstly, motion estimation is performed for each block in a picture, and the residue variance of the best motion-compensated block is calculated. Then, a noise variance estimate of the picture is obtained by adaptively averaging and properly scaling the variances close to the best variance. The simulation results show that the proposed noise estimation algorithm is very accurate and stable irrespective of noise level.

Original languageEnglish
Title of host publicationProceedings of SPIE-IS and T Electronic Imaging - Visual Communications and Image Processing 2008
DOIs
StatePublished - 2008
Externally publishedYes
EventVisual Communications and Image Processing 2008 - San Jose, CA, United States
Duration: 29 Jan 200831 Jan 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6822
ISSN (Print)0277-786X

Conference

ConferenceVisual Communications and Image Processing 2008
Country/TerritoryUnited States
CitySan Jose, CA
Period29/01/0831/01/08

Keywords

  • Motion
  • Noise estimation
  • Video

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