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Proceedings Paper

Noise analysis of infrared touch overlay and its application on Kalman filter
Author(s): AiGuo Zhou; QiangBiao Pan; ShuYi Cheng; DongYu Sun
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Paper Abstract

Infrared touch overlay has some problems in multi-touch recognition and trajectory smoothness. In order to deal with these problems, this paper adjusts the Kalman filter for infrared touch overlay. Before the application, it estimates the noise of process and measurement. It analyzes the process noise and measurement noise from test of three different touch trajectories. And then the paper choses the proper parameter for the Kalman filter on infrared touch overlay. The experimental results demonstrate that the Kalman filter with the noise parameter works much better in filtering of the infrared touch overlay's track, compared to the original recognition algorithm.

Paper Details

Date Published: 26 January 2016
PDF: 10 pages
Proc. SPIE 9903, Seventh International Symposium on Precision Mechanical Measurements, 990323 (26 January 2016); doi: 10.1117/12.2214431
Show Author Affiliations
AiGuo Zhou, Tongji Univ. (China)
QiangBiao Pan, Tongji Univ. (China)
ShuYi Cheng, Univ. of Shanghai for Science and Technology (China)
DongYu Sun, Soochow Univ. (China)


Published in SPIE Proceedings Vol. 9903:
Seventh International Symposium on Precision Mechanical Measurements
Liandong Yu, Editor(s)

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