A vehicle tracking method and system for a target person

Abstract

The invention relates to a vehicle tracking method and system for a target person, belonging to the fields of computer vision, image processing, pattern recognition and the like. The method includes: determining a target person, initializing the coordinate information of the target person; acquiring the coordinate information of the target person in real time, and calculating the occlusion index of the target person; when the occlusion index of the target person satisfies a first preset condition , calculate the vehicle contact index of the target person; when the second preset condition is met, calculate the vehicle entry index of the target person; determine the vehicle hidden by the target person according to the target person entry vehicle index and obtain the vehicle vehicle information. The present invention can solve the problem that the target is lost due to personnel entering the vehicle when tracking the target personnel, and can accurately locate the vehicle hiding the personnel, preventing the personnel from being blocked by another passing vehicle when entering the vehicle, resulting in misjudgment of the personnel hiding vehicle and the like. occur.

Description

technical field [0001] The invention belongs to the fields of computer vision, image processing, pattern recognition and the like, and particularly relates to a vehicle tracking method and system for target persons. Background technique [0002] In today's society, cities are developing rapidly, the population of cities is growing rapidly, and the flow of people is increasing. The problem of people's mobility has become a major problem in urban management, especially in important public places. The flow requires strict monitoring, and these areas generally require high security. This kind of personnel monitoring is usually monitored by cameras installed in such areas, which can detect suspicious personnel in the monitoring area in time for real-time observation. When a special situation occurs, the management personnel can be warned to deal with it, such as dispatching police or security personnel to the scene for processing under abnormal circumstances, and storing the vide...

AI Technical Summary

Problems solved by technology

[0003] However, the personnel monitoring technology in the prior art usually uses fixed cameras to monitor the situation in a fixed area. When the personnel leave the fixed area, they cannot be tracked, and only multiple cameras can be used for monitoring. The cost is relatively high. At the same time, the existing technology It is very difficult to match moving personnel, and the accuracy and continuity of tracking cannot be guaranteed. The existing technology usually uses monitoring personnel to observe the monitoring screen in real time in the monitoring room to achieve the purpose of tracking suspicious personnel. It is necessary to pay attention to the monitoring screen at all times. For monitoring personnel It is said that the requirements are too high, it is easy to miss and track suspicious personnel, and the increase of monitoring personnel also increases the cost

[0004] In the real-time tracking process of the target person, when the target person escapes in a vehicle, the vehicle information of the target person cannot be accurately located and the target person is lost. A detection device that can detect the person entering the vehicle and extract the relevant information of the vehicle is needed Realize the mode conversion of target personnel from pedestrian tracking to vehicle tracking

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