Method for counting pedestrian flow from multiple views under complex scene of traffic junction

Abstract

The invention relates to method for counting the pedestrian flow, in particular to a method for counting the pedestrian flow from multiple views under the complex scene of a traffic junction, comprising the following steps: carrying out background modeling to videos by adopting the hybrid code book algorithm, and detecting and segmenting the moving targets; calculating the movement vector by adopting the optical flow method to obtain the speed and the direction of the moving targets, distinguishing vehicles and pedestrians according to the speed and the direction of the moving targets, eliminating the vehicle targets, extracting the pedestrian targets, and calculating the direction of the pedestrians; setting a virtual door, and counting the pedestrian targets which enter and exit the virtual door according to the direction of the pedestrians and the predetermined direction of the pedestrians entering and exiting the virtual door. The method is suitable for counting the pedestrian flow from multiple views under the complex scene of the traffic junction by detecting the moving targets, extracting the pedestrians and counting the numbers of the pedestrians entering and exiting the virtual door in real time by adopting the virtual gate technology, has the counting accuracy of 90% and can adapt to the complex situation that the illumination of the outdoor environment is changeable, the shooting is carried out under changeable inclined angles, the human body resolution is low and the vehicles and the pedestrians run together.

Description

technical field [0001] The invention relates to a method for counting the flow of people, in particular to a method for counting the flow of people from multiple perspectives applicable to complex scenes at traffic intersections. Background technique [0002] With the increasing scale of cities and the diversification of road traffic modes, people's demand for urban traffic has increased rapidly, resulting in a substantial increase in traffic flow. Road infrastructure, traffic control and traditional intelligent traffic models are far from being able to adapt to cities. The development of transportation requires that the problems of traffic congestion and congestion are becoming more and more serious, and have become important livelihood issues that need to be solved urgently. [0003] The traffic flow detection system collects the traffic flow conditions of key intersections and hot spots in real time through the video collection front-end equipment installed at traffic int...

AI Technical Summary

Problems solved by technology

[0010] 1. Adopt the method of identification and tracking, which requires high video quality, and requires the camera to shoot the human body with a vertical perspective (TOP-VIEW). It is mainly used in supermarkets, shopping centers, department stores, specialty stores, entertainment facilities, product exhibition halls, etc. Various commercial facilities with limited scope of application

[0011] 2. The existing equipment cannot be used, and special front-end acquisition equipment and other supporting hardware need to be reinstalled, which is costly and cannot protect the customer's existing equipment investment

[0012] 3. Poor adaptability, the camera angle cannot be adjusted, cannot deal with human body occlusion, and cannot adapt to the traffic statistics in complex scenes at traffic intersections

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