Method and device for detecting flame

A flame and flame area technology, applied in the information field, can solve the problems of judging flame growth characteristics and the accuracy of flame detection methods cannot be guaranteed

Active Publication Date: 2014-01-15
HUAWEI TECH CO LTD
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Problems solved by technology

But for the geometric shape and irregularity of the flame, due to the complex external environment in some open scenes: wilderness, forest, street, etc. (for example, the strong wind in the open-air scene), the growth characteristics of the flame It cannot be judged only by the geometric shape, irregularity, etc. on the 2D image
Therefore, the accuracy of existing flame detection methods cannot be guaranteed

Method used

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  • Method and device for detecting flame

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] figure 1 A schematic flowchart of a method 100 for detecting flames according to an embodiment of the present invention is shown. Such as figure 1 As shown, the method 100 includes:

[0018] S110, determine a candidate flame area in the current frame image;

[0019] S120, performing real-time optical flow calculation on the candidate flame area based on a grid algorithm, and obtaining optical flow vectors of pixels in the candidate flame area;

[0020]...

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Abstract

The invention discloses a method and device for detecting a flame. The method comprises the following steps: a candidate flame area in a current frame image is determined; the candidate flame area is subjected to real-time light stream calculation according to a grid algorithm to acquire light stream vectors of pixels in the candidate flame area; whether the flame exists is determined according to the distribution characters of the light stream vectors of the pixels in the candidate flame area in all directions. By means of the method and device for detecting the flame, flames can be detected accurately and stably in various complex or simple environments.

Description

technical field [0001] The present invention relates to the field of information technology, and more particularly, to methods and apparatus for detecting flames. Background technique [0002] Flame is the visible light or other physical manifestation of the chemical process in which fuel and air are mixed and rapidly transformed into products of combustion. Fire can bring many benefits to people, but it can also cause serious harm if used carelessly, the most common being fire. Fire has always been one of the great threats to the safety of people's lives and properties. It is an effective way to reduce or avoid losses caused by fires by timely alarming sudden fires. In recent years, with the rapid development of computer vision technology, it has become possible to use this technology for early warning of fire, and some existing technologies have been applied. These technologies have shown good results in some indoor occasions with stable conditions, such as factories, ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06F18/00
Inventor 占伟鹏张翼叶茂庞锋
Owner HUAWEI TECH CO LTD
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