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计算机工程 ›› 2013, Vol. 39 ›› Issue (6): 295-298,303. doi: 10.3969/j.issn.1000-3428.2013.06.065

• 图形图像处理 • 上一篇    下一篇

基于Mirror Driver的屏幕图像捕捉技术

周恕义a,陈圣奇b,贺玉虎a,金 蕾a   

  1. (北京工业大学 a. 现代教育技术中心;b. 计算机学院,北京 100124)
  • 收稿日期:2012-05-16 出版日期:2013-06-15 发布日期:2013-06-14
  • 作者简介:周恕义(1955-),男,教授,主研方向:网络多媒体技术;陈圣奇,硕士研究生;贺玉虎,助理研究员;金 蕾,工程师
  • 基金资助:
    北京工业大学教育教学研究课题基金资助项目(203000514111003)

Screen Image Capture Technology Based on Mirror Driver

ZHOU Shu-yi a, CHEN Sheng-qi b, HE Yu-hu a, JIN Lei a   

  1. (a. Modern Technological Center in Education; b. College of Computer Science, Beijing University of Technology, Beijing 100124, China)
  • Received:2012-05-16 Online:2013-06-15 Published:2013-06-14

摘要: 目前各类非高依赖DirectDraw应用中屏幕捕捉技术存在效率低下、捕捉遗漏、光标丢失以及不够稳定等问题。为此,提出基于镜像显示驱动的屏幕图像捕捉方案。设计并实现内核驱动,通过捕捉鼠标光标移动路径中的关键点再现光标轨迹,并对捕获到的变化区域集进行优化合并。实验结果证明,该方案能快速稳定地捕捉屏幕上的变化区域图像,实现光标的移动捕捉。

关键词: 镜像显示驱动, 屏幕图像捕捉, 变化区域, 光标捕捉, 显示驱动, 设备驱动接口

Abstract: In order to resolve the low efficiency issue, capturing-omitting and mouse cursor-missing problems in screen image capture technology for applications with non-high-dependency of the DirectDraw, this paper realizes Mirror Driver, redraws the track of cursor by capturing key points in moving-path and combines the updated regions grabbed to optimize the performance. Experimental results show that the resolution is speed-fast and stable when capturing the modified areas including mouse cursor-moving path on desktop.

Key words: Mirror Driver, screen image capture, updated region, cursor capture display drive, device drive interface

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