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Smog detection method and system

A detection method and detection system technology, applied in image data processing, instrument, character and pattern recognition, etc., can solve the problems of low detection sensitivity, inability to timely and accurately reflect the fire occurrence, etc., and achieve high-sensitivity detection and accurate characterization. Effect

Inactive Publication Date: 2014-09-17
HUNAN UNIV
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Problems solved by technology

[0005] Based on this, it is necessary to provide a smoke detection method and system that has high detection sensitivity and can timely and accurately represent the occurrence of fire in view of the problems of low detection sensitivity and inability to timely and accurately reflect the occurrence of fire in the existing smoke detection methods

Method used

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  • Smog detection method and system
  • Smog detection method and system

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below according to the drawings and embodiments. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention.

[0022] Such as figure 1 Shown, a kind of smoke detection method comprises steps:

[0023] S100: Obtain a smoke detection video image, and analyze a smoke detection video image sequence to obtain pixel points of the smoke detection video image.

[0024] The smoke detection video image data can be obtained from the image data captured by the surveillance camera. The obtained smoke detection video image data is analyzed and processed to obtain a sequence of smoke detection video images, and then the sequence of smoke detection video images is further analyzed to obtain pixel points of the smoke detection video imag...

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Abstract

The invention provides a smog detection method and system. The method comprises the steps that movement regions are extracted from a video sequence, then wavelet features and brightness value features are extracted from the movement regions, a plurality of multi-dimensional newly-combined feature vector sets are formed, and finally whether smog is generated in the movement regions or not is detected according to the multi-dimensional newly-combined feature vector sets. In the whole process, whether the smog is generated or not is determined by analyzing the newly-combined feature vector sets, the wavelet features and the brightness value features are utilized for detection, whether the smog is generated or not can be detected with high efficiency and sensitivity, and fire occurrence situations can be accurately represented in time.

Description

technical field [0001] The invention relates to the technical field of fire detection, in particular to a smoke detection method and system. Background technique [0002] Fire is a disaster that brings serious losses to human beings, and smoke is the early manifestation of fire, so it is particularly important to accurately identify smoke. [0003] At present, the relatively mature traditional smoke detection method is based on the detection technology of the sensor. Common smoke detectors include smoke detectors, temperature detectors, light detectors, moisture detectors, and sound detectors. However, these detectors based on sensor detection technology must be near the smoke point to accurately detect smoke, which is easily affected by factors such as the area of ​​the monitored environment, temperature, humidity, and airflow, and can only be detected by the detector when the smoke reaches a certain concentration. Detected, so the scope of application of traditional detec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46G06T7/00G06T7/20
Inventor 杨胜郑雪梅
Owner HUNAN UNIV
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