Real-time multi-channel video acquisition and processing system based on DirectShow

The traditional multi-channel video capture system requires the use of a dedicated video capture card,with a dedicated capture device,because of its high expense and most data are provided by the interface,post-synthesis processing is relatively slow.So the real-time multi-channel video acquisition and processing system base on DirectShow is proposed.The system uses ordinary USB camera,with Microsoft's DShow,acquisition and processing video in real time.It can be used in monitoring,video data processing and other places.