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A video-based overhead working personnel safety belt wearing detection method for an intelligent construction site

A kind of high-altitude operation and detection method technology, which is applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problems of not very ideal linearity and the inability to extract the straight line of the edge of the seat belt, etc., and achieve the adaptability of the application environment Strong, reduced manual monitoring costs, low false recognition rate and low missed detection rate

Active Publication Date: 2019-04-16
武汉昊广智联科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For workers working at high altitudes, the edge information is very rich. After the image is grayed out, a large number of edges are extracted with the canny operator, so that the edge information of the seat belt is submerged, and the flexibility of the seat belt makes the linearity of the edge not ideal. , in the end, the edge straight line of the seat belt cannot be extracted well, so the detection fails

Method used

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  • A video-based overhead working personnel safety belt wearing detection method for an intelligent construction site
  • A video-based overhead working personnel safety belt wearing detection method for an intelligent construction site
  • A video-based overhead working personnel safety belt wearing detection method for an intelligent construction site

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Embodiment

[0141] Example: such as figure 2 shown;

[0142] The video-based method for detecting the wearing of safety belts of workers at heights in smart construction sites provided by the embodiments of the present invention includes:

[0143] Step 1, perform adaptive white balance, including:

[0144] 1) For each pixel according to

[0145] Y=0.257*R+0.564*G+0.098*B+16, Cb=-0.148*R-0.291*G+0.439*B+128, Cr=0.439*R-0.368*G-0.071*B+128. Convert an image from RGB color space to YCbCr color space.

[0146] 2) Set the size of the rectangular area of ​​the block. In order to meet the application of images with different resolutions, the width and height of the image block are respectively selected as one-fifth of the image width and height. If the remainder is less than 1 / 2 of the block width, then Merged into the last chunk, otherwise, as a separate smaller chunk.

[0147] 3) Calculate the mean value Mb of each block Cb, the mean value Mr of Cr;

[0148] 4) Calculate the average mea...

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Abstract

The invention belongs to the technical field of safe operation information processing, and discloses a video-based overhead working personnel safety belt wearing detection method for an intelligent construction site, which comprises the following steps of: carrying out self-adaptive white balance on an obtained construction site image to eliminate chromatic aberration; Detecting and identifying auser target image by using a deep learning neural network; Smoothing filtering is carried out by adopting a mean shift smoothing method, edge detection is carried out based on a CIE00 color distance,and an edge image is obtained after binaryzation; Traversing an included angle Theta value between the distance Rho from the straight line to the original point in the search range and the horizontalline, and detecting all straight lines which may be two side edges of the safety belt in the edge image; And if the distance between the two parallel straight lines is within the specified range, thesafety belt exists. Equipment installation and maintenance cost is low; Based on video images, an artificial intelligence technology is adopted, all-weather monitoring of the wearing condition of thesafety belt of the high-altitude operator is achieved, application is convenient, cost is low, and large application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of safe operation information processing, and in particular relates to a video-based method for detecting the wearing of safety belts of personnel working at heights in a smart construction site. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] For working at heights, the safety belt is the life belt. For special high-altitude operations, there are usually special safety management personnel on the job site to supervise the wearing and use of seat belts, but in general construction sites, such as construction operations on scaffolding, the working surface is large and there are many workers. The working hours are long, and the on-site management personnel have to supervise continuously around the clock, which is difficult and requires a lot of manpower. The actual situation of on-site management is that after the education and remind...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/34G06K9/46G08B21/02
CPCG08B21/02G06V20/52G06V10/457G06V10/267G06V10/56
Inventor 罗小安
Owner 武汉昊广智联科技有限公司
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