基于特征轮廓的光学触控系统触点识别

计算机科学 ›› 2011, Vol. 38 ›› Issue (Z10): 425-427.

基于特征轮廓的光学触控系统触点识别

柴硕，王栋，刘金尧，王晓庆，陈戈

(中国海洋大学信息科学与工程学院电子工程系青岛266100);(中国海洋大学海洋信息技术教育部工程研究中心青岛266100);(中国海洋大学图书馆青岛266100)

出版日期:2018-11-16 发布日期:2018-11-16
基金资助:
本文受科学技术部科技人员服务企业行动项目(2009GJA00047)资助。

Contacts Recognition of Optical Touch System Based on Features Outlines

CHAI Shuo,WANG Dong,LIU Jin-yao,WANG Xiao-qing,CHEN Ge

Online:2018-11-16 Published:2018-11-16

摘要/Abstract

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阂值分割、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OpcnCV1.0库，在基本不影响处理效率的前提下，实现了精确的千扰点别除。

关键词: 双阂值分割，特征轮廓，光学触控系统，触点识别

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 the aspect ratio of the features outlines. This method using OpenCV1.0,on the premise not affecting handling efficiency basically,realizes the accurate contacts recognition.

Key words: Double threshold segmentation,Features outlines,Optical touch system,Contacts recognition

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, 38(Z10): 425-427. https://doi.org/

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, 38(Z10): 425-427. https://doi.org/

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