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Proceedings Paper

Fast background image update in multi-touch system
Author(s): Tao Yang; Xiang Li; Yongtian Wang; Yue Liu
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Paper 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.

Paper Details

Date Published: 30 October 2009
PDF: 6 pages
Proc. SPIE 7495, MIPPR 2009: Automatic Target Recognition and Image Analysis, 749529 (30 October 2009); doi: 10.1117/12.833896
Show Author Affiliations
Tao Yang, Beijing Institute of Technology (China)
Xiang Li, Beijing Institute of Technology (China)
Yongtian Wang, Beijing Institute of Technology (China)
Yue Liu, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 7495:
MIPPR 2009: Automatic Target Recognition and Image Analysis
Tianxu Zhang; Bruce Hirsch; Zhiguo Cao; Hanqing Lu, Editor(s)

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