Unlock instant, AI-driven research and patent intelligence for your innovation.

A video-based tunnel smoke detection method and device

A technology of smoke and tunnel, applied in the field of video-based tunnel smoke detection method and device, capable of solving problems affecting reliability and accuracy

Active Publication Date: 2011-12-14
NETPOSA TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to dust movement and light changes caused by moving cars and trains in the tunnel, this greatly affects the reliability and accuracy of the above patent detection

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A video-based tunnel smoke detection method and device
  • A video-based tunnel smoke detection method and device
  • A video-based tunnel smoke detection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings.

[0028] The invention is applicable to various traffic places, especially tunnels.

[0029] figure 1 An overall flow chart of the video-based tunnel smoke detection method according to the present invention is shown. like figure 1 Shown, according to the tunnel smoke detection method based on video of the present invention can comprise:

[0030] In the first step 101, a background is established according to continuous frame images, and a main background, a reference background and a reference image are obtained;

[0031] In the second step 102, the difference between the current image and the main background is obtained to obtain the detection points of the current image;

[0032] The third step 103 is to calculate the integral value of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a video-based tunnel smoke detection method and device, including: establishing a background based on continuous frame images, obtaining a main background, a reference background and a reference image; making a difference between the current image and the main background, and obtaining the detection point of the current image ; Calculate the integral value of the current image detection point, extract the initial area of ​​the current image according to the integral value; update the background of the current image; calculate the correlation coefficient between the current image and the corresponding initial area of ​​the reference background image, and filter out the light caused by the coefficient Interference area; calculate the integral value of the initial area of ​​the current image, and extract a stable initial area according to the integral value; calculate the features of the stable initial area in the current image, and extract the smoke according to the features.

Description

technical field [0001] The invention relates to image processing, video monitoring and fire protection, in particular to a video-based tunnel smoke detection method and device. Background technique [0002] With the rapid development of the transportation system, roads and tunnels are also increasing. Because the traffic flow in the tunnel is large and relatively closed, once a fire breaks out, it is very difficult to put out the fire, and it is very easy to cause serious losses. Therefore, fire detection in tunnels has received great attention. [0003] According to the law of fire occurrence, the appearance of fire smoke is earlier than that of open flame, so smoke detection technology is widely used in early warning of fire. Among smoke detection technologies, video-based smoke detection has become a research hotspot due to its advantages of non-contact and low cost. [0004] US patent application US 2007 / 0019071A1 discloses a smoke detection method that uses backgroun...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G01N21/85
Inventor 陆奇星
Owner NETPOSA TECH