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A target object tracking method and device

A target object and object technology, applied in the field of image processing, can solve the problem of low target tracking efficiency, achieve the effect of improving efficiency, improving tracking efficiency, and reducing the amount of data

Inactive Publication Date: 2019-02-12
ZHEJIANG DAHUA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a target object tracking method and device to solve the problem of low target tracking efficiency in the prior art

Method used

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  • A target object tracking method and device
  • A target object tracking method and device
  • A target object tracking method and device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] figure 1 A schematic diagram of the target object tracking process provided by the embodiment of the present invention, the process includes:

[0044] S101: Extract features of the target object in the first image to obtain target feature values ​​of the target object.

[0045] The target object tracking method provided by the embodiment of the present invention is applied to an electronic device, and the electronic device may be a PC, a tablet computer or the like.

[0046] The image collection device installed at the intersection can collect images in real time, the image collection device collects the first image containing the target object, and can send the first image to the electronic device. For example, when a traffic accident occurs somewhere or a robbery event occurs, the first image collected by the image collection device contains the target object to be tracked.

[0047]The electronic device can identify the target object in the first image, and perform ...

Embodiment 2

[0056] In order to accurately determine the target address corresponding to the target object, on the basis of the above embodiments, in the embodiment of the present invention, determining the target address corresponding to the target object according to the address to which the image acquisition device belongs includes:

[0057] According to the first feature value of each object stored in the static library, determine whether there is a target first feature value whose first similarity with the target feature value is greater than a preset first threshold;

[0058] If it exists, use the constant access address of the object corresponding to the first characteristic value of the target in the static library as the target address of the target object; wherein, the constant access address of the object is acquired within a preset time length and includes The address of the image acquisition device with the second most images of the object;

[0059] If it does not exist, the a...

Embodiment 3

[0066] In order to make the tracking of the target object more accurate, on the basis of the above-mentioned embodiments, in the embodiment of the present invention, the target feature value is compared with each feature value within the preset tracking range to obtain the The trajectory of the target object includes:

[0067] According to the second characteristic value of each object within the preset tracking range, determine whether there is a second characteristic value of the target whose second similarity with the target characteristic value is greater than a preset second threshold;

[0068] If it exists, determine the position information corresponding to the second feature value of the target, sort the position information according to time, and obtain the motion track of the target object.

[0069] Each image acquisition device within the preset tracking range captures images in real time, and performs feature extraction on objects in the images to obtain each secon...

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PUM

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Abstract

The invention discloses a target object tracking method and device. The method comprises the following steps of extracting the features of a target object in a first image to obtain the target featurevalue of the target object; determining a target address corresponding to the target object according to the address to which the image acquisition device belongs, and determining a preset tracking range including the target address; comparing the target feature value with each eigenvalue within the preset tracking range to obtain a motion trajectory of the target object and tracking. In the embodiment of the invention, the preset tracking range is determined according to the target address corresponding to the target object, and then the target feature value is compared with each feature value within the preset tracking range to obtain the moving track of the target object and track, so that it only needs to retrieve the target object in the preset tracking range, and does not need to retrieve the target object in the entire retrieval range, which reduces the amount of feature value alignment data, improves the feature value alignment efficiency, and further improves the tracking efficiency of the target object.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a target object tracking method and device. Background technique [0002] In recent years, with the rapid development of science and technology, the tracking of target objects has become more and more widely used. The existing tracking of target objects is based on satellite positioning. This tracking method is limited by the fact that the tracked target must carry a device with a positioning function, otherwise, the target cannot be tracked, so it has great limitations. [0003] In order to solve the limitations of tracking based on satellite positioning, an image-based target tracking method is proposed in the prior art, including a monitoring operation client and a video calculation server. The user inputs the image of the suspected target in the monitoring operation client, and the video calculation server Process the sampled video and images, including ext...

Claims

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Application Information

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IPC IPC(8): G06T7/246
CPCG06T2207/10016G06T7/246
Inventor 罗婷婷陈立力
Owner ZHEJIANG DAHUA TECH