A Robust Blob Recognition and Tracking Method in Vision-Based Multi-touch Technique
A Robust Blob Recognition and Tracking Method in Vision-Based Multi-touch Technique
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基于视觉的多点触摸技术中鲁棒的斑点识别和跟踪方法
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Z. Liu
中科院分区：
文献类型：
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作者：
Feng Wang;Xiangshi Ren;Z. Liu
基于视觉的多点触控技术的基本技术是高性能图像处理。本文提出了两种算法来解决斑点识别和跟踪问题。采用图像轮廓变换算法来分析手指接触区域的存在，并且设计了最小距离优先（MDF）算法来识别和跟踪两个连续图像中相应的斑点。结果表明，这两种算法的性能完全满足实时多点触控系统的要求。
The fundamental technique of vision-based multi-touch technique is the high performance image processing. In this paper, two algorithms are presented to resolve the problems of blob recognition and tracking. Image contour transformation algorithm is adopted to analyze the existence of finger contact area and Minimum Distance First (MDF) algorithm is designed to identify and track the corresponding blob in two sequential images. The result shows that the performance of two algorithms fully meets the requirement of real time multi-touch system.