摘要
针对当前视频捕获设备驱动模式各不相同的现状,提出了一种能够应用于多种不同驱动模型视频捕获设备的视频采集方案。该方案可以对不同驱动模型的视频捕获设备统一进行参数设置。利用DirectShow技术实现了实时课堂教学系统中视频采集模块。在实现视频采集时,研究了对于不同硬件DirectShow构建的FilterGraph的差别。实验测试显示,实现的视频采集模块能够对不同的硬件设备进行参数设置,提高了实时课堂教学系统的硬件兼容性。
A video capture program is proposed, which is applied to various video capture devices with different drive-models. Such a program is able to provide an interface to set the parameters of different capture devices, and work together with DireetShow to reaiize the video capture module of real-time teaching system. Differences among the filter graphs that DirectShow built for different hardwares in the realization of video capture is discussed. The experiments show that the realized video capture modules can set parameters for different hardwares and increase the compatibility of real-time teaching system.
出处
《计算机工程与设计》
CSCD
北大核心
2009年第13期3256-3258,共3页
Computer Engineering and Design
