Video-based abnormal event detection method and video-based abnormal event detection device applied to expressway

Abstract

The invention relates to the technical field of road traffic safety, and aims to provide a video-based abnormal event detection method and device applied to an expressway, and the method comprises thesteps: obtaining a video image; performing frame difference operation on the acquired video image, and dividing a motion area of the video image; detecting each divided motion area, and identifying whether an object is a vehicle or a pedestrian; according to the identified object object, identifying that the abnormal event is retrograde motion or congestion or throwing or pedestrian intrusion. The problems that an existing abnormal event detection system based on an expressway is difficult to accurately identify an abnormal event, and the identification speed of the abnormal event is low aresolved. The method has the advantages that abnormal events such as retrograde motion, congestion, throwing and pedestrian intrusion can be accurately and quickly judged, the recognition result is transmitted to the background, analysis based on the background is not needed, and the requirement for a transmission network is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of road traffic safety, in particular to a video-based abnormal event detection method and device applied on expressways. Background technique [0002] At present, with the increase of the number of motor vehicles, the congestion problem on the road is becoming more and more serious, especially on the expressway. With the reform of the expressway toll mode, the ETC segmental toll model has become popular. The gate frame is installed in sections on the expressway, and then the monitoring camera and hardware analysis equipment are installed on the gate frame to collect video images and perform billing. When the vehicle passes through the toll booth, the on-board equipment will realize vehicle identification, information writing and automatically deduct the corresponding funds from the pre-bound IC card or bank account, so as to realize rapid traffic opening and effectively alleviate the problem of road congest...

AI Technical Summary

Problems solved by technology

However, on the expressway, abnormal events such as retrograde, throwing, and pedestrian intrusion occur frequently, which are likely to cause serious traffic accidents

[0003] Existing abnormal event detection based on applications on highways generally transmits a large number of videos to the background for analysis, making it difficult to accurately identify various abnormal events, and the recognition speed is slow

[0004] The above-mentioned existing technical solutions have the following defects: the existing abnormal event detection system based on expressways is difficult to accurately identify abnormal events, and the identification speed of abnormal events is slow

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