| 基于特征轮廓的光学触控系统触点识别 |
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| 引用本文： | 柴硕,王栋,刘金尧,王晓庆,陈戈. 基于特征轮廓的光学触控系统触点识别[J]. 计算机科学, 2011, 0(Z1) |
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| 作者姓名： | 柴硕 王栋 刘金尧 王晓庆 陈戈 |
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| 作者单位： | 中国海洋大学信息科学与工程学院电子工程系;中国海洋大学海洋信息技术教育部工程研究中心;中国海洋大学图书馆; |
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| 基金项目： | 科学技术部科技人员服务企业行动项目(2009GJA00047)资助 |
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| 摘 要： | 光学触控系统是近年来逐渐兴起的一种触控解决方案,它主要利用计算机视觉中的团块跟踪算法计算出触点信息。在此提出了一种光学触控系统触点识别的改进方法,它通过对摄像头采集到的图像进行双阈值分割、轮廓提取,进而计算出最小外接矩形,根据得到的特征矩形的面积及长宽比,进行无效触点剔除。该方法采用OpenCV1.0库,在基本不影响处理效率的前提下,实现了精确的干扰点剔除。
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| 关 键 词： | 双阈值分割 特征轮廓 光学触控系统 触点识别 |
Contacts Recognition of Optical Touch System Based on Features Outlines |
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| CHAI Shuo, WANG Dong, LIU Jin-yao, WANG Xiao-qing, CHEN Ge. Contacts Recognition of Optical Touch System Based on Features Outlines[J]. Computer Science, 2011, 0(Z1) |
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| Authors: | CHAI Shuo WANG Dong LIU Jin-yao WANG Xiao-qing CHEN Ge |
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| Affiliation: | CHAI Shuo1,2 WANG Dong2,3 LIU Jin-yao1,2 WANG Xiao-qing1,2 CHEN Ge2(Department of Electronic Engineering,College of Information Science & Engineering,Ocean University of China,Qingdao 266100,China)1(Engineering Research Center of Marine Information Technology,Ministry of Education,China)2(Library,China)3 |
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| Abstract: | In recent years,optical touch system is a gradually rising solution of touch system,and it recognized the touch-point based on the method of mass tracking from computer vision recognition.The paper put forward a new method applied to contacts recognition of optical touch system,first,it carves up the image gathered by the camera by two thresholds and extracts the contours,and then,it computes the minimum external rectangular of the bright spot,at last,it eliminates the invalid contacts based on the area and... |
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| Keywords: | Double threshold segmentation Features outlines Optical touch system Contacts recognition |
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