Temperature correction method, device and system

A correction value and temperature value technology, applied in the computer field, can solve the problem of low accuracy of temperature measurement results and achieve the effect of improving accuracy

Active Publication Date: 2021-11-16
MEGVII BEIJINGTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the distance between the infrared device that takes the thermal image and the object has a great influence on the temperature in the thermal imaging image, making the temperature measurement result less accurate

Method used

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  • Temperature correction method, device and system
  • Temperature correction method, device and system
  • Temperature correction method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] First, refer to figure 1 An example electronic device 100 for implementing the temperature correction method, device and system of the embodiments of the present invention will be described.

[0035] Such as figure 1 Shown is a schematic structural diagram of an electronic device. The electronic device 100 includes one or more processors 102, one or more storage devices 104, an input device 106, an output device 108, and an image acquisition device 110. These components pass through a bus system 112 and / or other forms of connection mechanisms (not shown). It should be noted that figure 1 The components and structure of the electronic device 100 shown are only exemplary, not limiting, and the electronic device may have figure 1 Some components shown may also have figure 1 Other components and structures not shown.

[0036] The processor 102 may be a central processing unit (CPU) or other forms of processing units with data processing capabilities and / or instruction ...

Embodiment 2

[0043] refer to figure 2 A flow chart of a temperature correction method is shown, the method mainly includes the following steps S202 to S208:

[0044] Step S202, acquiring a target reference image frame pair including a person; wherein, the target reference image frame pair can be obtained by collecting images of the person in the monitoring area by a dual-light camera. The dual-light camera is a combined camera with a dual-camera structure. The dual-light camera in this embodiment is a combination of a visible light camera and a thermal imaging camera. The target visible light image frame containing personnel collected by the visible light camera and the target thermal imaging image frame containing personnel collected by the thermal imaging camera correspond to each other to form a target reference image frame pair.

[0045] Step S204, converting the target visible light image frame into a depth image frame. In an implementation manner, the target visible light image fr...

Embodiment approach

[0068] For ease of understanding, refer to image 3 , here is an optional implementation of temperature correction of the target thermal imaging image frame according to the first temperature correction value and the preset temperature correction factor, referring to the following steps 1 and 2:

[0069] Step 1: Correct the pixel temperature value in the positioning frame of the target thermal imaging image frame according to the first temperature correction value to obtain the first corrected thermal imaging image frame of the target thermal imaging image frame; the above positioning frame is based on the positioning of the target person Information is determined.

[0070] In the specific implementation, first, the pixel temperature value in the positioning frame of the target thermal imaging image frame is corrected according to the first temperature correction value, and the corrected pixel temperature value in the positioning frame of the target thermal imaging image frame...

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Abstract

The present invention provides a temperature correction method, device and system, relating to the field of computer technology. The method includes: acquiring a target reference image frame pair including a person; wherein, the target reference image frame pair includes a target visible light image frame and a target thermal image image frame; convert the target visible light image frame into a depth image frame; input the depth image frame and the target thermal imaging image frame into the atmospheric inverse scattering model; wherein, the atmospheric inverse scattering model is obtained by fitting the relationship between depth and temperature correction value in advance The neural network model; through the atmospheric inverse scattering model based on the depth image frame to correct the temperature of the target thermal imaging image frame, to obtain the target temperature. The invention can effectively improve the accuracy of the temperature of personnel.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a temperature correction method, device and system. Background technique [0002] For most epidemics such as new coronary pneumonia and influenza, "fever" and "high temperature" are more common and prominent features of suspected carriers. In this case, when an epidemic breaks out, there is usually a greater demand for body temperature detection equipment. At present, the commonly used body temperature detection technology is mainly infrared imaging technology, which detects thermal imaging images of target objects through infrared imaging technology, and thermal imaging images are images that record the temperature of objects such as people. However, the distance between the infrared device that captures the thermal image and the object has a great influence on the temperature in the thermal imaging image, making the temperature measurement result less accurate. Contents of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/00G01K13/00G06K9/00G06T7/50G06T7/70
CPCG01J5/0025G06T7/50G06T7/70G01J2005/0077G06T2207/20084G01K13/223G01J5/80G06V40/161G06V40/178G06V40/166G06V40/168G06V10/143G06T7/248G06T2207/10024G06T7/0012G06T2207/10048G06T2207/20081G06T2207/30088G06T2207/30201G06V40/171G06T7/80G06T7/55G06T2207/10028
Inventor 张耀威周舒畅胡晨
Owner MEGVII BEIJINGTECH CO LTD
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