Modeling and Calibration of Active Thermal-Infrared Visual System for Industrial HMI

In the industrial application of the human-machine interface (HMI), thermal-infrared cameras can detect objects that are limited by visible-spectrum cameras. It can receive the energy radiated by a target through an infrared detector and obtain the thermal image corresponding to the heat distributio...

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Main Authors: Mengjuan Chen, Simeng Tian, Fan He, Qingqin Fu, Qingyi Gu, Baolin Wu
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/11/8/1230
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author Mengjuan Chen
Simeng Tian
Fan He
Qingqin Fu
Qingyi Gu
Baolin Wu
author_facet Mengjuan Chen
Simeng Tian
Fan He
Qingqin Fu
Qingyi Gu
Baolin Wu
author_sort Mengjuan Chen
collection DOAJ
description In the industrial application of the human-machine interface (HMI), thermal-infrared cameras can detect objects that are limited by visible-spectrum cameras. It can receive the energy radiated by a target through an infrared detector and obtain the thermal image corresponding to the heat distribution field on the target surface. Because of its special imaging principle, a thermal-infrared camera is not affected by the light source when imaging. Compared to visible-spectrum cameras, thermal imaging cameras can better detect defects with poor contrast but temperature differences or internal defects in products. Therefore, it can be used in many specific industrial inspection applications. However, thermal-infrared imaging has the phenomenon of thermal diffusion, which leads to noisy thermal infrared images and limits its applications in high precision industrial environments. In this paper, we proposed a high precision measurement system for industrial HMI based on thermal-infrared vision. The accurate measurement model of the system was established to deal with the problems caused by imaging noise. The experiments conducted suggest that the proposed model and calibration method is valid for the active thermal-infrared visual system and achieves high precision measurements.
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spelling doaj.art-2ebb15ae0da944769d471e38254e2a052023-11-30T21:02:10ZengMDPI AGElectronics2079-92922022-04-01118123010.3390/electronics11081230Modeling and Calibration of Active Thermal-Infrared Visual System for Industrial HMIMengjuan Chen0Simeng Tian1Fan He2Qingqin Fu3Qingyi Gu4Baolin Wu5Beijing Smart-Chip Microelectronics Technology Co., Ltd., Beijing 100192, ChinaInstitute of Automation, Chinese Academy of Sciences, Beijing 100190, ChinaBeijing Smart-Chip Microelectronics Technology Co., Ltd., Beijing 100192, ChinaBeijing Smart-Chip Microelectronics Technology Co., Ltd., Beijing 100192, ChinaInstitute of Automation, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Automation, Chinese Academy of Sciences, Beijing 100190, ChinaIn the industrial application of the human-machine interface (HMI), thermal-infrared cameras can detect objects that are limited by visible-spectrum cameras. It can receive the energy radiated by a target through an infrared detector and obtain the thermal image corresponding to the heat distribution field on the target surface. Because of its special imaging principle, a thermal-infrared camera is not affected by the light source when imaging. Compared to visible-spectrum cameras, thermal imaging cameras can better detect defects with poor contrast but temperature differences or internal defects in products. Therefore, it can be used in many specific industrial inspection applications. However, thermal-infrared imaging has the phenomenon of thermal diffusion, which leads to noisy thermal infrared images and limits its applications in high precision industrial environments. In this paper, we proposed a high precision measurement system for industrial HMI based on thermal-infrared vision. The accurate measurement model of the system was established to deal with the problems caused by imaging noise. The experiments conducted suggest that the proposed model and calibration method is valid for the active thermal-infrared visual system and achieves high precision measurements.https://www.mdpi.com/2079-9292/11/8/1230industrial visual measurementthermal-infrared camerahuman-machine interfacesensors
spellingShingle Mengjuan Chen
Simeng Tian
Fan He
Qingqin Fu
Qingyi Gu
Baolin Wu
Modeling and Calibration of Active Thermal-Infrared Visual System for Industrial HMI
Electronics
industrial visual measurement
thermal-infrared camera
human-machine interface
sensors
title Modeling and Calibration of Active Thermal-Infrared Visual System for Industrial HMI
title_full Modeling and Calibration of Active Thermal-Infrared Visual System for Industrial HMI
title_fullStr Modeling and Calibration of Active Thermal-Infrared Visual System for Industrial HMI
title_full_unstemmed Modeling and Calibration of Active Thermal-Infrared Visual System for Industrial HMI
title_short Modeling and Calibration of Active Thermal-Infrared Visual System for Industrial HMI
title_sort modeling and calibration of active thermal infrared visual system for industrial hmi
topic industrial visual measurement
thermal-infrared camera
human-machine interface
sensors
url https://www.mdpi.com/2079-9292/11/8/1230
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