26 January 2016 Noise analysis of infrared touch overlay and its application on Kalman filter
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Proceedings Volume 9903, Seventh International Symposium on Precision Mechanical Measurements; 990323 (2016) https://doi.org/10.1117/12.2214431
Event: Seventh International Symposium on Precision Mechanical Measurements, 2015, Xia'men, China
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.
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AiGuo Zhou, AiGuo Zhou, QiangBiao Pan, QiangBiao Pan, ShuYi Cheng, ShuYi Cheng, DongYu Sun, DongYu Sun, } "Noise analysis of infrared touch overlay and its application on Kalman filter", Proc. SPIE 9903, Seventh International Symposium on Precision Mechanical Measurements, 990323 (26 January 2016); doi: 10.1117/12.2214431; https://doi.org/10.1117/12.2214431
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