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Video image detection scene judgment method and device

A technology of video image and judging device, which is applied in the directions of instruments, character and pattern recognition, and computer components, etc., which can solve the problems of low anti-interference ability, adjustment of supplementary light, and low accuracy of detection scenes, etc., and achieves a wide range of application scenarios, Strong anti-interference ability, high accuracy effect

Active Publication Date: 2016-01-06
北京数字智通科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing video detection methods usually use simple brightness changes and time information to detect the switching state of video images. However, when the external light changes suddenly, or the scenes in the collected video images change greatly, they cannot accurately detect Detecting the switching state of the video image may easily lead to errors in the control instructions for the fill light or failure to adjust the fill light in time, that is, the existing video detection method has low anti-interference ability
At the same time, the existing video detection methods have limitations on the applicable scenes. When the season changes or the geographical environment changes, the accuracy of detecting the scene by detecting the switching state of the video image is low.

Method used

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  • Video image detection scene judgment method and device
  • Video image detection scene judgment method and device
  • Video image detection scene judgment method and device

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Embodiment 1

[0026] An embodiment of the present invention provides a detection scene judgment method of a video image, such as figure 1 shown, including:

[0027] 101. Convert the currently collected original video image into a grayscale image;

[0028] 102. Determine the switching mode of the detection scene of the grayscale image;

[0029] 103. When the detection scene switching mode of the grayscale image is from daytime to nighttime, and it is determined that the grayscale image is in the switching state, extract the vehicle light information from the foreground area of ​​the grayscale image, and in the When the vehicle light is turned on, it is determined that the detection scene of the grayscale image is nighttime, and when the vehicle light is not turned on, it is determined that the detection scene of the grayscale image is dusk;

[0030] 104. When the switching mode of the detection scene of the grayscale image is from night to daytime, and it is determined that the grayscale i...

Embodiment 2

[0075] An embodiment of the present invention provides a device for detecting and judging a scene of a video image, such as image 3 As shown, it includes: a converting unit 11 , a judging unit 12 and a detected scene determining unit 13 .

[0076] Wherein, the conversion unit 11 is configured to convert the currently collected original video image into a grayscale image.

[0077] The judging unit 12 is configured to judge the switching mode of the detection scene of the grayscale image.

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Abstract

The embodiment of the invention provides a detection scene judgment method and a detection scene judgment device of a video image, which relates to the technical field of the video analysis and detection, improves the interference resistance of the video detection and improves the video detection accuracy. The method comprises following steps of extracting car light information from a foreground area of a grayscale image when a switching mode of the detection scene of the grayscale image is day-to-night and the condition that the grayscale image needs to be switched is determined, detecting the detection scene of the grayscale image as the night when a car light is turned on, and determining the detection scene of the grayscale image as the nightfall when the car light is not turned on; and extracting the car light information from the grayscale image when the switching mode of the detection scene of the grayscale image is night-to-day and the state of the grayscale image is required to be switched, determining the detection scene of the grayscale image as the daybreak when the car light is turned on, and determining the detection scene of the grayscale image as daytime when the car light is not turned on.

Description

technical field [0001] The present invention relates to the technical field of video analysis and detection, in particular to a detection scene judgment method and device of a video image. Background technique [0002] At present, in the field of video detection, for example, the field of video collection and detection of illegal vehicles, the field of license plate recognition and detection, etc., when the external light changes, it is necessary to use video detection methods to detect the location of the currently collected video image. Switch the state to control whether to turn on the fill light. For example, when the video detection method is used to detect that the currently collected video image is in the switching state from daytime to night, a control command to turn on the supplementary light is sent to improve the clarity of the collected video image. [0003] Existing video detection methods usually use simple brightness changes and time information to detect th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/46
Inventor 张滨范云霞延瑾瑜温炜张欢欢范友健
Owner 北京数字智通科技有限公司