空中手写技术的一种改进方案  

An Improved Scheme of Aerial Handwriting Technology

作　　者：潘王衡 张晋敏 肖清泉[1,2] 谢泉 PAN Wangheng;ZHANG Jinmin;XIAO Qingquan;XIE Quan(College of Big Data and Information Engineering,Guizhou University,Guiyang 550025,China;Institute of Advanced Optoelectronic Materials and Technology,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州大学大数据与信息工程学院,贵阳550025 [2]贵州大学新型光电子材料与技术研究所,贵阳550025

出　　处：《重庆科技学院学报（自然科学版）》2021年第3期79-83,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家自然科学基金项目“基于环境友好半导体材料β-FeSi2,Mg2Si的光电子器件设计与研究”(61264004);贵州省自然科学基金项目“用于红外探测器的高锰硅化物薄膜的相关物理基础研究”(黔科合基础[2018]1028);贵州大学研究生重点课程建设项目《固体物理学》(贵大研ZDKC[2015]026);贵州省留学回国人员科技活动择优资助项目“基于Mg2Si薄膜的红外传感器的结构设计与计算机模拟”(黔人项目资助合同[2018]09)。

摘　　要：针对现有空中手写技术存在的不足,提出了一种改进方案。增加初始化设置环节,利用惯性传感器进行数据采集,以"激光-平面定位法"实现远距离空间坐标的获取,并将数据实时传输至电脑端进行处理。增加了现有技术未考虑到的显示屏幕与电子笔的实际空间大小、相对位置和指向等数据的获取,并建立这些数据之间的对应关系,实现电脑光标与手写笔笔尖的位置和轨迹唯一对应。按照改进的方案,在不用触控屏的情况下,可在显示屏幕上实现精准触控,并还原真实书写的效果。Aiming at the shortcomings of the existing aerial handwriting technology,an improved scheme is proposed.Initialization setting link is added first and inertial sensor is used for data acquisition;the"laser plane positioning method"is used to achieve the acquisition of long-distance spatial coordinates,and the data is transmitted to the computer in real time for processing.The acquisition of the actual space size,relative position and direction of the display screen and the electronic pen,which are not considered in the prior technology,is increased;the corresponding relationship between these data is established to realize the unique correspondence between the position and track of the computer cursor and the pen tip.According to the improved scheme,in the case of no touch screen,it can achieve accurate touch on the display screen and restore the effect of real writing.

关 键 词：触控屏 传感器 电子笔 空中手写 笔迹识别 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]