| 非接触式触摸屏系统的设计 |
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| 引用本文： | 向斌宾,蒋向东,王继岷,李建国.非接触式触摸屏系统的设计[J].计算机工程与应用,2011,47(32):71-74. |
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| 作者姓名： | 向斌宾 蒋向东 王继岷 李建国 |
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| 作者单位： | 电子科技大学光电信息学院,成都,610054 |
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| 基金项目： | 四川省应用基础项目(No.07JY029-087) |
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| 摘 要： | 针对目前触摸屏必须接触式控制的缺陷,提出了一种基于图像处理技术的新型触摸屏系统。该系统以微软VX—6000USB2.0摄像头为图像传感器,由PC机采集图像序列,识别和跟踪定位激光光斑,并对用户的指点控制信息做出相应反应。阐述了该系统结构及定位原理,使用基于OpenCV(open source computer vision library)的图像处理算法辅助开发其软件系统。提出一种基于边界修复的图像二次校正法,通过对训练样本的测量发现,系统拥有很好的指点精度。实验结果表明,所设计触摸屏系统能够初步实现非接触式指点的要求,为大屏幕挂壁式非接触式触摸屏系统的研究提供了有效的思路。
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| 关 键 词： | 触摸屏 非接触式 激光光斑定位 图像校正 |
| 修稿时间： | |
Design of non-contact touch screen system |
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| XIANG Binbin,JIANG Xiangdong,WANG Jimin,LI Jianguo.Design of non-contact touch screen system[J].Computer Engineering and Applications,2011,47(32):71-74. |
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| Authors: | XIANG Binbin JIANG Xiangdong WANG Jimin LI Jianguo |
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| Affiliation: | XIANG Binbin,JIANG Xiangdong,WANG Jimin,LI Jianguo School of Optoelectronic Information,University Of Electronic Science and Technology of China,Chengdou 610054,China |
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| Abstract: | When the current touch screen must be contacted control, it proposes a new touch screen system based on the image processing technology.The system introduces Microsoft VX-6000 USB2.0 camera as its image sensor, gathers image sequences, identifies and positions the laser spot,and responds with users＇ pointing information.It describes the architecture of the system, a software for positioning,and uses image processing algorithm based on OpenCV（open source computer vision library） to help developing its software system.It proposes an image secondary correction method based on edge-restoration.By training samples, it finds that the system has excellent accuracy.The experimental results indicate that the system can realize the non-contact requirement and provide an effective thought for the study of non-contact large screen wall touch screen system. |
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| Keywords: | touch screen non-contact position the laser spot image correction
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