A method and device for determining the effective area of ​​a signal light

An effective area and area determination technology, applied in the video field, can solve the problems of positioning errors, affecting the overall effect, and locating the digital light area, etc., to achieve the effect of improving reliability, meeting the needs of evidence maps, and improving authenticity and reliability

Active Publication Date: 2020-01-14
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the brightness is directly used to locate the traffic light area that needs to be restored, it is prone to problems such as positioning errors
[0006] For example, digital lights are a type of traffic light, and the numbers of the digital lights are constantly changing. Therefore, it is impossible to accurately locate the area of ​​the digital lights based on the brightness of the image. As a result, when restoring the digital lights, the The background on the side is restored together, thus affecting the overall effect

Method used

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  • A method and device for determining the effective area of ​​a signal light
  • A method and device for determining the effective area of ​​a signal light
  • A method and device for determining the effective area of ​​a signal light

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Embodiment Construction

[0043]The terminology used in this application is for the purpose of describing specific embodiments only, not to limit the application. As used in this application and the claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0044] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second information may also be called first information. Depending...

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Abstract

The invention provides a determination method and apparatus for an effective region of a signal lamp. The method comprises the steps of determining an initial region of the signal lamp by utilizing interface configuration information; acquiring N frames of video images in a monitoring screen, and obtaining a grayscale difference image of the initial region by utilizing grayscale values, in the initial region, of the N frames of video images; obtaining a template image of a specified number, and sliding the template image on the grayscale difference image to obtain an effective value between each region of the grayscale difference image and the template image; and determining the effective region of the signal lamp by utilizing the region with the highest effective value. Through the technical scheme, the effective region of the signal lamp can be accurately located, the reliability of signal lamp recovery is improved, reasonable recovery of an over-exposure region of the signal lamp is realized, the over-exposure problem of the signal lamp is effectively solved, and the color of the signal lamp meets an actual demand.

Description

technical field [0001] The present application relates to the field of video technology, in particular to a method and device for determining an effective area of ​​a signal light. Background technique [0002] In recent years, with the rapid development of computers, networks, image processing, and transmission technologies, the trend of popularization of video surveillance systems has become more and more obvious. Video surveillance systems are gradually becoming high-definition and intelligent. Video surveillance systems can be applied to many Fields, such as intelligent transportation, smart parks, safe cities, etc. [0003] In the video surveillance system, the front-end equipment (such as network camera, analog camera, etc.) is an important part, and the video surveillance system includes a large number of front-end equipment, and these front-end equipment collect video images in various environments. If the front-end equipment collects video images in a low-light env...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T5/50G06T7/11
CPCG06T5/001G06T5/50G06T2207/10016G06T2207/30236
Inventor 吴辉
Owner ZHEJIANG UNIVIEW TECH CO LTD
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