A vehicle tracking method and system for a target person
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A vehicle tracking and personnel technology, which is applied in the field of vehicle tracking methods and systems for target personnel, and can solve problems such as high cost, inability to accurately locate target personnel loss, and increased cost.
Active Publication Date: 2022-07-01
东莞先知大数据有限公司
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[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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Embodiment 1
[0079] figure 1 It is the flow chart of the vehicle tracking method of the target person. like figure 1 As shown, the present invention provides a vehicle tracking method for a target person, and the method includes the following steps:
[0080] S1: Determine the target person, and initialize the coordinate information of the target person.
[0081] Specifically, refer to figure 2 and image 3 , when the target person enters the monitoring scene, obtain the personnel box information and the screen size information of the monitoring scene ,in is the screen width, For the height of the picture, extract the image in the person frame, and obtain the frame coordinates of the target person through the trained human key point detection model , eyebrow coordinates , neck coordinates , hip coordinates and the coordinates of the center of the knee ,in Respectively represent the abscissa of the upper left corner, the ordinate of the upper left corner of the target p...
Embodiment 2
[0123] Figure 4 It is a schematic diagram of the vehicle tracking system of the target person. like Figure 4 As shown, the present invention also provides a vehicle tracking system for a target person, the system comprising:
[0124] an initialization module for determining a target person and initializing the coordinate information of the target person;
[0125] a calculation module, configured to obtain the coordinate information of the target person in real time, and calculate the occlusion index of the target person; when the occlusion index of the target person meets a first preset condition, calculate the vehicle contact index of the target person; When the second preset condition is met, calculating the target personnel entry vehicle index;
[0126] A determination module, configured to determine a vehicle hidden by the target person according to the target person's entry vehicle index and acquire vehicle information of the vehicle.
[0127] Preferably, the initia...
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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...
Claims
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Application Information
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