摘要
尽管传统的红外多点触控识别技术具有低成本、安装简单的优势,但仍存在多点触控识别时间长、触控响应延迟严重的缺点.文章提出了一种新型的基于坐标变换的红外多点触控识别算法,搭建了AT32F403主芯片硬件测试平台,经过软硬件综合设计,多点触控识别时间比传统方法缩短了约20%,提升了多点触控识别体验.
Although the traditional infrared multi-touch recognition technology has the advantages of low cost and simple installation,it still has the disadvantages of long multi-touch recognition time and serious touch response delay.This paper proposes a novel infrared multi-touch recognition algorithm based on coordinate transformation.To verify the proposed algorithm,a hardware system based on the MCU AT32F403 is built.With the integrated implementation of hardware and software,the recognition time of the proposed algorithm is about 20%shorter than that of the traditional algorithm,thus improving the multi-touch recognition experience.
作者
许少睿
XU Shao-rui(College of Electronics and Communication,Guangdong Mechanical and Electrical Polytechnic,Guangzhou,Guangdong,510550)
出处
《韩山师范学院学报》
2020年第6期45-50,共6页
Journal of Hanshan Normal University
关键词
红外多点触控
坐标变换
发射灯
接收灯
infrared multi-touch
coordinate transformation
emitter
receiver
