A surveillance video analysis method and device

A technology for monitoring video and analysis methods, which is applied in video data retrieval, video data browsing/visualization, closed-circuit television systems, etc., and can solve problems such as low efficiency of monitoring video analysis.

Active Publication Date: 2020-02-14
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a monitoring video analysis method and device to solve the problem of low monitoring video analysis efficiency in the prior art

Method used

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  • A surveillance video analysis method and device
  • A surveillance video analysis method and device
  • A surveillance video analysis method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] figure 1 A monitoring video analysis process provided in Embodiment 1 of the present invention, the process includes the following steps:

[0072] S101: Receive a surveillance video analysis request, where the surveillance video analysis request carries identification information of a surveillance video to be analyzed.

[0073] A monitoring video analysis method provided in an embodiment of the present invention is applied to a terminal. For example, it can be a mobile phone, a PC, or a tablet computer, etc. Specifically, an APP can be installed in the terminal, and the monitoring video analysis process can be realized through the APP.

[0074] After receiving the surveillance video analysis request, the terminal recognizes that the surveillance video analysis request carries identification information of the surveillance video to be analyzed. The identification information may be information of a monitoring device that recorded the monitoring video, and the terminal ...

Embodiment 2

[0085] On the basis of Embodiment 1 of the present invention, in the embodiment of the present invention, before assigning a corresponding number of video frames to each analysis device, the method further includes:

[0086] Query information about the minimum number of analysis frames of the analysis device saved by each analysis device;

[0087] For each analysis device, when determining whether the first number of video frames analyzed by the analysis device is less than the minimum number of analysis frames stored by the analysis device, if yes, no video frames are allocated to the analysis device.

[0088] Video analysis generally requires a minimum number of frames for pre-processing of algorithms, such as face recognition, background modeling in license plate recognition algorithms, etc. Each analysis device stores information about the minimum number of frames analyzed by the analysis device. The terminal queries information about the minimum number of analysis frames ...

Embodiment 3

[0102] In order to ensure that the number of video frames allocated to the remaining analysis devices just matches the number of video frames analyzed by the remaining analysis devices, when the remaining analysis devices include at least two, the method further includes:

[0103] sorting the remaining analysis devices in descending order of the first number of video frames analyzed by the remaining analysis devices;

[0104] removing a set number of analytical devices among said remaining distribution devices;

[0105] According to the target remaining analysis equipment after removing the set number of analysis equipment, a third number of video frames is allocated to each target remaining analysis equipment, wherein the third number of video frames allocated to each target remaining analysis equipment Not less than the first number of video frames allocated to each target remaining analysis device, the third number of video frames allocated to each target remaining analysis...

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Abstract

The invention discloses a surveillance video analysis method and device, which are used for solving a problem of low surveillance video analysis efficiency in the existing technology. The method comprises the following steps of receiving a surveillance video analysis request; determining intelligent analysis cloud parameters of each analysis device according to the network bandwidth; determining the number of video frames analyzed by each analysis device according to the intelligent analysis cloud parameters and the total number of the video frames of a surveillance video; and distributing the corresponding number of the video frames to each analysis device in order to make each analysis device to analyze the distributed video frames. According to the embodiments of the invention, the intelligent analysis cloud parameters can be determined according to the network bandwidth of each analysis device, the number of the video frames analyzed by each analysis device can be determined according to the intelligent analysis cloud parameters and the total number of the video frames of the surveillance video, and each analysis device analyzes the corresponding number of the video frames, so that each analysis device is fully utilized and the parallel analysis is realized, and thus the analysis efficiency of the surveillance video is improved.

Description

technical field [0001] The invention relates to the technical field of monitoring video processing, in particular to a monitoring video analysis method and device. Background technique [0002] With the continuous advancement of science and technology, surveillance video is used more and more frequently. Traditional video surveillance is manually monitored to detect potential safety hazards or abnormal states. This application has inherent shortcomings and is difficult to achieve high Efficient security monitoring and detection management, so video intelligent analysis and monitoring technology has emerged. Intelligent video analysis and monitoring technology can actively collect and analyze data by distinguishing the characteristics of the monitored object's shape and action, and perform actions such as alarming, recording, and analysis according to preset conditions. When intelligently analyzing the surveillance video, it can be intelligently analyzed during the recording...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04N7/18G16Y40/10
CPCG06F16/74H04N7/18
Inventor李辉吴惠敏
OwnerZHEJIANG DAHUA TECH CO LTD