A Smooth Tracking Algorithm for Capacitive Touch Panels
Zucheng Zhang, Jupeng Li, Moyu Li
Available Online October 2016.
- https://doi.org/10.2991/ceie-16.2017.73How to use a DOI?
- Capacitive Touch Panel; Touch Signal Noise; Kalman Filter; Tracking Smoothness
- Capacitive touch panels (CTPs) have been more popular owing to its excellent interactive performance. However, electronic magnetic interference, display noise and process variation negatively influence the accuracy of predictions of touch positions. A smooth tracking algorithm for capacitance touch panels based on Kalman filter was proposed in this paper. Original touch capacitance data and touch noise characteristic were detected using a micro-controller unit and a sensor integrated circuit. Additionally, the noise of touch trajectory was suppressed by Kalman algorithm timely through process model and measurement model of touch trajectory smooth system. Experimental results indicated that the proposed touch trajectory smooth algorithm has better performance compared to the moving average filtering and wavelet filtering algorithm, and the algorithm can be used to capacitive touch panel systems.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Zucheng Zhang AU - Jupeng Li AU - Moyu Li PY - 2016/10 DA - 2016/10 TI - A Smooth Tracking Algorithm for Capacitive Touch Panels BT - Proceedings of the International Conference on Communication and Electronic Information Engineering (CEIE 2016) PB - Atlantis Press SP - 567 EP - 572 SN - 2352-5401 UR - https://doi.org/10.2991/ceie-16.2017.73 DO - https://doi.org/10.2991/ceie-16.2017.73 ID - Zhang2016/10 ER -