The Design of Infrared Touch Screen based on MCU

摘要：

This paper introduces a touch screen technology based on infrared optical.This technology has apparent advantages in the large-size applications,which is simple,low cost,high feasibility.In the system,the detection of ambient light and the adaptive control of IR LED can effectively enhance the adaptability of the touch screen in complex light environment via the MCU.In image processing,the image of foreground and background are segmented by Otsus method with a coefficient. Integral projection is adopted to recognize the contact area.The result shows that the performance of the system fully meets the requirements of real time and accuracy.

作者: Zheng Wei Wei Liu Qing He Ning Wei Chenxi Wang Tingfang Yan Chao Hu Max Q.-H.Meng

作者单位: Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen,China College of Com Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen,China Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen,China Ningbo Institu Department of Electronic Engineering,The Chinese University of Hong Kong,Hong Kong,China

会议类型: 国际会议

会议名称: 第八届IEEE信息与自动化国际会议(ICIC 2011)

会议地点: 深圳

会议语种:英文

页码: 485-489

在线出版日期: 2011-06-06（万方平台首次上网日期，不代表论文的发表时间）