上海交通大学学报

上海交通大学学报（自然版）

• 自动化技术、计算机技术 • 上一篇    下一篇

一种基于计算机屏幕图像匹配的快速搜索策略

杨光，毛宏宇，田地，李军
  

  1. (吉林大学 仪器科学与电气工程学院， 长春 130061)
  • 收稿日期:2009-11-23 修回日期:1900-01-01 出版日期:2010-08-31 发布日期:2010-08-31

A Fast Search Strategy Based on Image Matching of Computer Screen

YANG Guang,MAO Hongyu,TIAN Di,LI Jun
  

  1. (College of Instrumentation and Electronic Engineering, Jilin University, Changchun 130061, China)
  • Received:2009-11-23 Revised:1900-01-01 Online:2010-08-31 Published:2010-08-31

摘要： 提出一种适用于计算机屏幕图像的快速搜索策略.首先确定含有目标图像窗口的移动范围，通过计算目标图像在窗口中的相对位置，缩小图像的搜索空间.对已知匹配点的空间坐标进行分类统计，根据目标点出现概率的大小标定搜索优先级，构建一种学习式的搜索算法.测试结果表明，在针对计算机屏幕图像匹配时，本文算法在运算速度和匹配精度上优势显著.该方案已成功应用于国家大型科学仪器工作状态监测系统.

关键词: 图像处理, 计算机屏幕图像, 搜索策略, 学习式搜索

Abstract: This paper put forward a kind of fast search strategy applicable to the computer screen image. Firstly, the moving range of the window containing the target image is determined, and the relative coordinates of the target image are calculated to reduce the search space. In addition, the space coordinates of known matching points are statistically classified, and the search priority is defined according to appeared probability of the target point, to build a learningstyle search algorithm. The test results show that, for the computer screen image, the algorithm has significant advantages in computing speed and matching accuracy. This method has been successfully applied in the national largescale scientific instruments work condition monitoring system.