Video-based automatic identification method and alarm system for the wearing status of work clothes and hats
A technology of wearing state and automatic identification, applied in the field of image processing, can solve problems such as difficult on-site management, and achieve the effect of eliminating hidden safety hazards, simple and convenient deployment, and great application prospects.
Active Publication Date: 2020-11-24
武汉昊广智联科技有限公司
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Problems solved by technology
Due to the large spatial breadth of the construction site, the intersecting operation time of various professional types, and the timely handling of on-site incidents, the processing process and results must be archived, making the implementation of on-site management difficult.
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[0105] An implementation case of the present invention is as follows:
[0106]Hikvision network camera is used, model: DS-2CD3T26DWD-I3. The video image acquisition frame rate is 25. In order to improve the processing speed, during the detection process, the video frame is scaled to the standard size of 320*240.
[0107] 1. Moving target detection. 1) In the three-frame difference method for detecting moving objects, when calculating the difference between two frames of images, the N(x,y) neighborhood is selected as 3x3, and the constant value C is the macro FLT_EPSILON of the c++11 standard library. The color distance between two pixels in the Lab color space adopts the CIEDE2000 distance algorithm standard. In obtaining the template image through binarization threshold processing on the difference image, set k1=10 and k2=20. The values of k1 and k2 are empirical values, which have a certain relationship with the camera itself, and the specific values can be adjusted ...
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The invention belongs to the technical field of image processing, and discloses a video-based automatic identification method and an alarm system for the wearing state of work clothes and hats. The moving target; complete the classification of the human target and other targets according to the detected target cluster features and the time period characteristics of the cluster outer contour; segment the head and torso of the detected human target; in the Lab color space , to conduct intelligent analysis on whether the head of the human body is wearing a helmet and whether the torso is wearing work clothes; if abnormal safety protection is found, the safety alarm message will be reported to the management personnel in real time, and the snapshot will be archived at the same time. The invention does not need to increase equipment installation and maintenance costs; adopts artificial intelligence technology to realize all-weather monitoring of construction site workers' caps, has convenient application, low cost, and has great application prospects.
Description
technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a video-based automatic identification method and an alarm system for the wearing state of work clothes and hats. Background technique [0002] At present, our country is still in the stage of large-scale construction, and hundreds of thousands of construction sites are under construction every year. At the same time, it is also in the stage of transition from extensive to intensive. Construction companies are in urgent need of efficient on-site management methods to reduce costs and improve efficiency, and safety management can be said to be the top priority of construction site management. On-site safety management involves many aspects. At present, pre-employment education and manual supervision during the work process are still the main focus. The various disciplines and work surfaces of construction projects are interlaced in time and space, and they ar...
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IPC IPC(8): G06K9/00G06K9/32G06T7/246G06T7/12G06T7/136G06T5/30G06T5/00
CPCG06T5/30G06T7/12G06T7/136G06T7/246G06T2207/10016G06T2207/30196G06V40/10G06V10/255G06T5/92
Inventor 罗小安
Owner 武汉昊广智联科技有限公司