Fast background image update in multi-touch system

Tao Yang*, Xiang Li, Yongtian Wang, Yue Liu

*Corresponding author for this work

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

Abstract

Background subtraction technique has been widely used in the single camera based multi-touch system. The solution based on fixed-rate background accumulation can only be used to the applications with gradual change of ambient lightings. This paper presents a solution to update background by detecting ambient lightings, which enables the multi-touch system to be operated under the conditions of rapid or complicated change of ambient lightings. Experimental results show that with the help of the presented solutions, the ghost points are efficiently reduced and the system can adapt to the changes of ambient lighting in 1 second.

Original languageEnglish
Title of host publicationMIPPR 2009 - Automatic Target Recognition and Image Analysis
DOIs
Publication statusPublished - 2009
EventMIPPR 2009 - Automatic Target Recognition and Image Analysis: 6th International Symposium on Multispectral Image Processing and Pattern Recognition - Yichang, China
Duration: 30 Oct 20091 Nov 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7495
ISSN (Print)0277-786X

Conference

ConferenceMIPPR 2009 - Automatic Target Recognition and Image Analysis: 6th International Symposium on Multispectral Image Processing and Pattern Recognition
Country/TerritoryChina
CityYichang
Period30/10/091/11/09

Keywords

  • Ambient light detection
  • Background subtraction
  • Computer vision
  • Multi-touch system

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