Multi-camera linkage multi-target tracking method and system for smart community

A target tracking, multi-camera technology, applied in image enhancement, image analysis, image data processing and other directions, can solve the problems of tracking trajectory identification changes, lack of multi-camera multi-target tracking methods, tracking targets being occluded, etc., to reduce occlusion, etc. The effect of changing probability

Pending Publication Date: 2019-12-27
QINGDAO WINDAKA TECH
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  • Application Information

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Problems solved by technology

However, in target tracking, the tracking track logo changes frequently due to the tracking target being blocked, the camera shakes, etc.
And m

Method used

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  • Multi-camera linkage multi-target tracking method and system for smart community

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Experimental program
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Embodiment 1

[0044] see figure 1 , in an embodiment of the present invention, a multi-camera linkage multi-target tracking method for a smart community includes the following steps:

[0045] Step (1): Obtain the current monitoring camera image;

[0046] In the specific implementation, the real-time video frame of the surveillance camera is pulled through RTSP.

[0047] Step (2): Input the image into the human body detection model;

[0048] In the specific implementation, the human body detection model is trained using a convolutional neural network; a large number of pedestrian pictures collected by itself under surveillance cameras and human body pictures on the Internet are used as data sets, and Mask rcnn is used for training. First, the default parameters are used for training. According to the results during training, the initial weights, training speed, and number of iterations are adjusted until the network achieves the desired recognition effect.

[0049] Step (3): When the huma...

Embodiment 2

[0064] see figure 2 In combination with the smart community-oriented multi-camera linkage multi-target tracking method of Embodiment 1, a smart community-oriented multi-camera linkage multi-target tracking system is provided, including a human body and face feature extraction module 10, a calculation matching module 20, and a target tracking system. Trajectory processing module 30 and data processing module 40. The following is a detailed description of the multi-camera linkage multi-target tracking system for smart communities:

[0065] The human body and human face feature extraction module 10 is used to extract the human body and human face features in the video frame captured by the camera, and obtain the human body detection frame.

[0066] In specific implementation, the human body and face feature extraction module 10 is equipped with a human body detection model and a face recognition model. Both the human body detection model and the face recognition model are trai...

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Abstract

The invention relates to the field of community security and protection, in particular to a multi-camera linkage multi-target tracking method and system for a smart community. Human body features andhuman face features are extracted by using a convolutional neural network and are combined with Kalman filtering estimation. The distance is calculated by using the Mahalanobis distance, the similarity of the features is measured by using the cosine distance, then weighted calculation is performed on the two measurements, and the final result is judged by the face recognition result in an auxiliary manner. The method can adapt to a scene with a complex community environment, has multi-camera linkage target tracking, reduces the probability that the target tracking trajectory identifier is changed due to shielding and the like to a certain extent, and has important significance for community management, public security criminal investigation and the like.

Description

technical field [0001] The invention relates to the field of community security, in particular to a multi-camera linkage multi-target tracking method and system for smart communities. Background technique [0002] In smart communities, face recognition technology is an important means of community security deployment and control. It can not only help community managers discover illegal elements in time and grasp the trajectory of strangers, but also assist relevant government departments to search for suspects in a targeted manner. [0003] However, in the surveillance video, due to factors such as camera shooting angle, low resolution, and facial occlusion, it is difficult to obtain high-quality face pictures that meet the standards, and face recognition cannot be completed. When face recognition fails, object tracking becomes a more important community safety technology than face recognition. [0004] The traditional target tracking methods mostly use Kalman filter to pre...

Claims

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Application Information

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IPC IPC(8): G06T7/292G06T7/277G06K9/00G06K9/62
CPCG06T7/292G06T7/277G06T2207/10016G06T2207/20024G06T2207/30201G06T2207/30232G06T2207/20081G06T2207/20084G06V40/172G06V10/751G06F18/241
Inventor 管洪清管延成肖常升王伟张元杰
Owner QINGDAO WINDAKA TECH
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