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Video-based shielded flame detecting method and device

A detection method and flame technology, which are applied in fire alarms, image data processing, instruments, etc., can solve problems such as flames being blocked, unable to be detected in time, and delayed alarms.

Active Publication Date: 2011-03-09
NETPOSA TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in practical applications, sometimes the flame is blocked. When the initial flame is blocked, the alarm is delayed because it cannot be found in time.

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  • Video-based shielded flame detecting method and device

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Embodiment Construction

[0037] In order to enable your examiners to further understand the structure, features and other purposes of the present invention, the attached preferred embodiments are now described in detail as follows. The described preferred embodiments are only used to illustrate the technical solutions of the present invention, not to limit the present invention. invention.

[0038] figure 1 It is a flow chart of the video-based method for detecting occluded flames of the present invention. Such as figure 1 Shown, the detection method of the video-based occluded flame of the present invention comprises the following steps:

[0039] Step 101, analyzing the brightness change between the current frame image and the previous frame image, and obtaining connected regions with significant changes;

[0040] Step 102, analyzing the change trend of the connected region, obtaining a connected region whose change trend satisfies the flickering characteristic and using it as a candidate region; ...

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Abstract

The invention provides a video-based shielded flame detecting method. The method comprises: step 101) analyzing the brightness variation between a present frame image and a last frame image and acquiring a communication area for different brightness, step 102) analyzing the variation trend of the communication area and acquiring the communication area having the variation trend meeting flicker feature as a candidate area, step 103) extracting the features of the candidate area, filtering false candidate area according to the features of the candidate area, using the remained candidate area as a flame detecting area and outputting, wherein the features comprise color feature and area edge change feature. The invention also provides a video-based shielded flame detecting device. Compared with the prior art of image flame detection, the method and the device of the invention can detect the shielded or secluded flame in a complex scene and realize the early detection for flame.

Description

technical field [0001] The invention relates to a video-based detection method and device for shielding flames, belonging to the fields of image processing and video monitoring. Background technique [0002] With the development of fire detection technology in the field of fire protection, the video-based flame detection method has become the mainstream technology in the industry because of its advantages of high efficiency, accuracy, and less interference from environmental factors. US patent application US 2008 / 0136934A1 discloses a method and device for flame detection. The Chinese patent application with the publication number CN101315667A discloses a method for comprehensive identification of multiple characteristics of outdoor early fires. The method includes the following four steps: 1. Obtaining infrared images with a thermal imager; 2. Grayscale processing of fire infrared images, Threshold segmentation and filter processing; 3. Further analysis of the suspected fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46G06T7/00G08B17/00
Inventor 班华忠
Owner NETPOSA TECH
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