This article comes from: KnowingAI 知 智
Rework after the holidays, how to solve the problem of epidemic prevention and control in public places?
Through the analysis of 1099 samples collected, the latest paper published by Zhong Nanshan’s team shows that fever has (87.9%) and cough ( 67.7%) is still the most common symptom of new coronary pneumonia. Although only 43.8% of patients started to show fever in the early stage of infection, it still provided a basis for epidemic prevention and control in public places.
In controlled environments such as restaurants and shopping malls, people can use equipment such as forehead guns to measure body temperature. Stations, subway stations, office areas and other places with a large number of people are not only inefficient, but also increase the risk of infection.
Many AI companies are testing infrared non-sensing temperature solutions, which are mostly composed of infrared cameras, visible light imaging systems, and control terminals.
It works by using face recognition and body recognition to locate individuals in the flow of people, and using a thermal camera to detect the temperature of the human body. The system issues an alert as soon as a high temperature individual exceeds the threshold. Pedestrian detection is then used to indicate the location of the individual at high temperature, helping staff to quickly locate and complete the body temperature check.
The thermal imager relies on infrared rays emitted by objects to detect the temperature. The human skin will reduce the temperature due to nakedness. How to ensure the accuracy of temperature measurement results?
One method is to connect a constant temperature target, detect its temperature in the environment, and use the corresponding relationship between the two to correct the human body temperature in the environment. Distance also affects temperature measurement accuracy, and building a temperature measurement compensation model can also help. The detection error for most solutions is around 0.3 degrees Celsius.
At present, relevant infrared temperature measurement schemes are being piloted in realistic scenarios such as railway stations and subway stations. Watch carefully, maybe just on the way to commuteCan see them.
This article comes from: KnowingAI 知 智