Video-based passage vehicle detector

The utility model relates to a video-based passage vehicle detector, belonging to the technical field of urban indoor parking lot passage vehicle detection. The detector consists of a binocular video capture device, a video memory, a video processor and a network interface. The binocular video capture device includes two sets of cameras and an A/D converting circuit. The two cameras are respectively used to pick up the images in the corresponding passage and the view field of one camera is overlapped with the view field of the other camera to some extent. The digital signal output interface of the A/D converting circuit is connected with the video digital input interface of the video memory. The video digital output interface of the video memory is connected with the video processor. The video memory transmits the received passage video digital image signal to the video processor for analysis, so as to extract relevant information. The output port of the video processor is connected with a host computer through the network interface. The utility model effectively resolves the problem of the visual angle dead zone of the central part between the two passages, and has the advantages of low cost, high practicability, high accuracy, simple installation and maintenance and the like.