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Method and device for detecting video image

A technology of video image and detection method, which is applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problems of adding additional equipment and high cost, and achieve the effect of reducing the realization cost

Inactive Publication Date: 2015-08-12
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a video image detection method and device to solve the problem in the prior art that additional equipment needs to be added for target detection and the cost is relatively high

Method used

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  • Method and device for detecting video image
  • Method and device for detecting video image

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Embodiment Construction

[0040] Embodiments of the present invention provide a video image detection method and device, which are used to solve the problem in the prior art that additional equipment needs to be added to perform video image detection and the implementation cost is high.

[0041] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0042] An embodiment of the present invention provides a video image detection method, such as figure 1 As shown, the method includes:

[0043] S101: Acquire video images in real time from a video acquisition device working at an initial working angle and a first focal length.

[0044] When the video acquisition device works at the initial working angle and the first focal length, the video image scene acquired by it can cover the entire scope of the area to be detected.

[0045] S102: Perform target image detection on each frame of video image by using the target image model.

[0046] Pr...

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Abstract

The invention discloses a method and device for detecting a video image to solve problems that the time of detecting a target image is relatively long, the cost is relatively large, and the obtained target image resolution cannot satisfy a following processing requirement in the prior art. The method comprises: obtaining a video image from a video acquisition device working at an initial operating angle and a first focal length; performing target image detection of each frame of the video image by utilizing a target image model; tracking the detected target image; when that the immobile time of the target image reaches preset time is determined via tracking, storing the current video image; adjusting the operating angle of the video acquisition device according to the position of the target image in the video image; controlling the video acquisition device to work in a second focal length according to the preset resolution of the target image, wherein the second focal length is larger than the first focal length; and controlling the video acquisition device to be switched back to the first focal length and the initial operating angel, after the obtained video image is stored.

Description

technical field [0001] The invention relates to the field of image detection, in particular to a video image detection method and device. Background technique [0002] Due to the development of the field of electronic technology, it is becoming more and more important to detect targets through electronic devices in reality. For example: through the detection of electronic equipment, it can be judged whether there are people staying in the area where people are prohibited from staying, or whether there are vehicles parked illegally in the area where parking is prohibited, etc. Take the detection of illegal parking vehicles as an example: one method is to detect illegal vehicles by adding on-board GPS; the other method is to detect vehicles through the cooperation of sensors and video acquisition equipment, but both methods require additional The detection of illegal vehicles can only be carried out with advanced equipment, which increases the implementation cost. The above ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 庞成俊潘石柱张兴明
Owner ZHEJIANG DAHUA TECH CO LTD
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