基于 DirectShow 和 WPF 的实时视频图像采集与处理系统设计与实现

摘要

Currently,the main problems of video image are the low execution efficiency and difficult to realise real-time performance when processing large amounts of data.In light of this,we use DirectShow technology to well solve the problems.The video data in RAM can be directly processed based on DirectShow so that the bottleneck of hard disk data reading is stepped across.In this paper we design the real-time video image acquisition system,which uses DirectShow and WPF as the software platform,and includes video image capture and display module,image browsing and processing module,and image storage and management module.Experimental results show that the method can achieve good effect when applying in real-time video image acquisition,and is feasible in engineering application.%当前视频图像的主要问题是当处理的数据量大时，执行效率低，很难实现实时性。采用 DirectShow 技术，很好地解决了这个问题。基于 DirectShow 可直接对内存中的视频数据进行处理，从而跨越硬盘数据读取的瓶颈。设计了以 DirectShow 和 WPF 为软件平台的实时视频图像采集系统，包括：视频图像采集与显示模块、图像浏览与处理模块、图像存储与管理模块。实验结果表明该方法应用在实时视频图像采集上可以达到较好的效果，在工程上应用是可行的。