Flame detection method based on multispectral videos

Abstract

The invention relates to a flame detection method based on multispectral videos. The core technology of the flame detection method is that each spectrum band of the visual spectrum is registered automatically, by means of the spectrum characteristic and the video motion characteristic, three flame essential attributes including heat emitting, characteristic peaks and flicker are detected, and the detection results of the three flame essential attributes are effectively fused. According to the invention, multispectral micro-lens array video spectrum data serve as input, and the flame detection method comprises an algorithm used for registering the spatial position of each spectrum band of the video spectrum image, a multispectral characteristic peak identification algorithm used for distinguishing flame and another object having a color being similar to that of flame, a flicker characteristic detection algorithm used for distinguishing flame and luminous bodies such as incandescent lamps and the like; and an information fusion algorithm used for fusing the multispectral characteristic with the flicker characteristic. The flame detection method based on multispectral videos can be used for detecting the early-stage fire behavior of areas such as warehouses, machine rooms and workshops, and can cooperate with an automatic alarm to notify the fire fighting department timely, and the fire behavior can be prevented from being enlarged effectively.

Description

technical field [0001] The invention relates to a fire alarm or a detection method, in particular to a multi-spectral video flame detection method. Background technique [0002] The current flame detection is mainly through smoke, temperature alarm or thermal infrared. Smoke and temperature alarm detection methods are very low-cost, but only when the flame has produced a lot of smoke, or the flame has fully burned and generated enough heat, can the alarm be triggered. This alarm mode is not conducive to detecting early flames, and cannot ensure timely and effective fire extinguishing. Thermal infrared cameras, on the other hand, can detect smaller fire spots and can predict early flames, but they are expensive and highly susceptible to false alarms caused by other heat sources. In recent years, the method of flame detection using color images has attracted attention, but color images can only distinguish flames from the characteristics of color or shape, the false detectio...

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Problems solved by technology

[0003] In view of the above defects and problems in the prior art, the purpose of the embodiment of the present invention is to provide a multi-spectral video flame detection method to solve the problems of high false alarm rate and low detection accuracy in the existing flame detection technology

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