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Flame monitoring method and system based on video camera

A video camera, flame monitoring technology, applied in image analysis, fire alarm, image data processing and other directions, can solve the problems of easy to cause false alarms and omissions, the robustness of the algorithm and other problems, to reduce the rate of missed detection and false positives. detection rate, enhanced robustness, improved stability and security

Inactive Publication Date: 2012-08-29
CHINA ACAD OF BUILDING RES
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0015] Embodiments of the present invention provide a video camera-based flame monitoring method and system to solve the problems in the prior art that the algorithms are poorly robust and easily cause false alarms and missed alarms

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  • Flame monitoring method and system based on video camera
  • Flame monitoring method and system based on video camera
  • Flame monitoring method and system based on video camera

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Embodiments of the present invention provide a video camera-based flame monitoring method and system, which use the spatiotemporal characteristics of flames in video images to detect fires through computer intelligent algorithms.

[0033] Because in the video monitoring system, the flame presents different color features in the video d...

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Abstract

The embodiment of the invention provides a flame monitoring method and system based on video camera. The method comprises the following steps of: collecting a video image; establishing a brightness Gaussian model by each collected frame video image and obtaining at least one high-light area and boundary pixels thereof from the image by utilizing the model; carrying out motion characteristic analysis on each collected frame video image by utilizing a Gaussian frame difference method to obtain movement foreground pixels; when the number of the movement foreground pixels in the boundary pixels in the high-light area reaches a pre-set threshold value, marking the high-light area to a flame suspected area; estimating blinking characteristics of the flame suspected area by utilizing an HMM (hidden Markov model) and judging whether the flame suspected area has the flame; when the flame exists, carrying out fire alarm; or continually monitoring the video image of the next frame.

Description

technical field [0001] The invention relates to the field of fire detection, in particular to a video camera-based flame monitoring method and system. Background technique [0002] The fire detector is an important part of the automatic fire detection and alarm system. Its function is to monitor whether there is a fire in the scene, thereby triggering other parts of the system to give an alarm and deal with it. It mainly achieves the purpose of fire detection by measuring the relevant physical characteristics produced by the fire. For example: heat detectors detect by measuring the temperature rise caused by fire; smoke detectors, suction sampling, and infrared beam detectors detect fires by measuring smoke particles generated by fire; infrared and ultraviolet flame detectors Fire detection is performed by detecting infrared and ultraviolet radiation generated by flames. [0003] With the continuous improvement of computer performance and the continuous development of comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B17/00G06T7/00
Inventor 李宏文段晓东
Owner CHINA ACAD OF BUILDING RES
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