A vehicle analysis method and system based on vehicle detection and tracking

Abstract

A vehicle analysis method based on vehicle detection tracking comprises the following steps: (1) obtaining a video frame image, carrying out vehicle detection on the video frame image, and calibratinga vehicle frame on an initial frame image; (2) establishing a template feature: expanding the vehicle frame of the initial frame image to obtain a background frame, extracting the image feature of the background frame, and establishing a position template feature; Carrying out multi-scale zooming on the vehicle frame, extracting image features for each scale, and establishing scale template features; (3) inputting the next frame of image, establishing a real-time feature, establishing a correlation between the real-time feature and the template feature, obtaining a target frame position, andcompleting vehicle tracking; (4) repeating the step (3) for tracking; When the number of tracked frames reaches a preset numerical value, repeated detection is started from the step (1), and then tracking is carried out; And (5) obtaining all vehicle frames of the vehicle, and analyzing the motion trail of the vehicle.

Description

technical field [0001] The invention relates to the technical field of traffic management, in particular to a vehicle analysis method based on vehicle detection and tracking. Background technique [0002] The currently used traffic flow analysis system usually uses manual statistics and scheduling. On the one hand, this method is relatively inefficient and cannot meet the needs of real-time control. On the other hand, this method requires a lot of labor costs. [0003] At present, the technology based on vehicle detection and tracking that has been adopted can overcome the above defects of manual detection. At present, there is an automatic vehicle detection system built with joint sensing technology, video technology, and wireless communication technology, which uses high-definition infrared cameras to capture license plate information, vehicle The monitoring of illegal driving behaviors in the road, etc., the statistical monitoring of the traffic flow of the road section t...

AI Technical Summary

Problems solved by technology

In fact, through the ground induction coil to carry out statistical monitoring of the traffic flow of the road section and ultrasonic detection of vehicles, because the speed and type of vehicles in progress are always changing, there are generally problems of unstable reflected signals and large measurement errors; in addition, the ground induction coil The construction is troublesome and easy to damage, which makes it have great limitations in practical application

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