基于计算机视觉的激光虚拟键盘的研制  

Development of Laser Virtual Keyboard Based on Computer Vision

作　　者：陈文娟[1] 刘树钰 陈梦雯[1] 侯鹏 CHEN Wen-juan;LIU Shu-yu;CHEN Meng-wen;HOU Peng(China University of Petroleum,Shandong Qingdao 266580)

机构地区：[1]中国石油大学(华东),山东青岛266580

出　　处：《大学物理实验》2018年第1期114-118,共5页Physical Experiment of College

基　　金：中国石油大学(华东)重点教改项目(SY-B201614);中国石油大学(华东)大学生创新创业训练项目(201710425093)

摘　　要：针对传统机械式键盘存在体积大、携带不便等问题,设计了一套基于计算机视觉的激光虚拟键盘系统。在充分利用电脑软件图像处理功能的基础上,系统利用三角测距原理和按键的映射原理识别手触按键坐标信息并建立其与电脑实际按键坐标信息的对应关系,从而控制电脑做出准确指令。相比其他设备,该系统的设计成本低,按键准确度高,方便演示和使用。In view of traditional mechanical keyboards are big,and inconvenient for carrying,a laser virtual keyboard system based on computer vision is designed.Based on making full use of the image processing function of computer software,the system identifies the coordinate information of touched-virtual keys and establishes the corresponding relation between them and true keys of the computer by the principles of triangulation and the mapping of keys,so as to control the computer to make accurate instruction.Compared with other devices,the cost of this system is low and the accuracy of touch-keys are high,which it is easy to demonstrate and use.

关 键 词：计算机视觉 三角测距 图像处理 

分 类 号：TN247[电子电信—物理电子学]