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Proceedings Paper

Automatic calibration of multi-touch projected display
Author(s): You Lu; Yue Liu; Yongtian Wang
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Paper Abstract

Interactive accuracy is directly relative to the distribution of the calibration markers in multi-touch system. This paper describes a new calibration method of multi-touch projected display, which uses different types of markers in different areas of the projected display screen and calculates the positions of markers with some special functions such as corner detection and integral of bright spots. With the presented methods, the positions of markers can be calculated accurately. Furthermore, the markers are grouped using automatic calibration method, which speeds up the calculation by almost ten times. The methods developed in this paper can be used for linear and non-linear camera environment.

Paper Details

Date Published: 30 October 2009
PDF: 7 pages
Proc. SPIE 7495, MIPPR 2009: Automatic Target Recognition and Image Analysis, 749528 (30 October 2009); doi: 10.1117/12.833581
Show Author Affiliations
You Lu, Beijing Institute of Technology (China)
Yue Liu, Beijing Institute of Technology (China)
Yongtian Wang, 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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