基于计算几何的新型红外式触摸屏多点触摸识别算法  

A new multi-touch recognition algorithm for infrared touch screen based on computational geometry

作　　者：王璐[1] 牛薇[1] 方乐[1] 张浩[1] 陈赫威 

机构地区：[1]北京航空航天大学中法工程师学院,北京100191

出　　处：《中南大学学报（自然科学版）》2013年第S2期300-303,共4页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(11202013)

摘　　要：针对现有红外式触摸屏图像处理算法进行多点触摸识别时出现伪触摸点概率大、识别精度较低等问题,提出一种基于计算几何的新型红外式触摸屏多点触摸识别算法。通过在实际红外式触摸屏上对算法进行测试,证明优化后的新型算法相较于传统图像处理算法大幅降低了伪触摸点出现的概率,且显著提高了触摸精度。Current infrared touch screens use mainly the image processing algorithm as multi-touch recognition algorithm,resulting in high probability of pseudo touch points and poor accuracy.A new multi-touch recognition algorithm based on computational geometry theories was presented.Practical experiments give positive results to support the present improvement.

关 键 词：红外式触摸屏 多点触摸 计算几何 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]