节点文献
基于Mirror Driver的屏幕图像捕捉技术
Screen Image Capture Technology Based on Mirror Driver
【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。
【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.
【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;
【Key words】 Mirror Driver; screen image capture; updated region; cursor capture; display drive; device drive interface;
【Key words】 Mirror Driver; screen image capture; updated region; cursor capture; display drive; device drive interface;
【基金】 北京工业大学教育教学研究课题基金资助项目(203000514111003)
- 【文献出处】 计算机工程 ,Computer Engineering , 编辑部邮箱 ,2013年06期
- 【分类号】TP391.41
- 【被引频次】12
- 【下载频次】106