Research on the Influence of Multiple Interference Factors on Infrared Temperature Measurement

Pan, Dong; Jiang, Zhaohui; Maldague, Xavier; Gui, Weihua

doi:10.1109/jsen.2021.3055757

Cited by 12 publications

(5 citation statements)

References 15 publications

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“…This limits the further application of infrared thermal imagers in many practical processes. In general, interfering factors include environmental temperature, water mist in the air, shading materials, and so on . To test the infrared thermal imaging performance of treated MgF 2 windows in extremely complex environments, an infrared thermal imaging test system for multi-interference environments was designed.…”

Section: Resultsmentioning

confidence: 99%

“…Finally, by adding a layer of shading material (light blocking ratio: 95%) between the infrared object and the infrared imager, the tanks’ images become blurred seriously. The reason for these phenomena is the addition of interfering factors that hinder the propagation of infrared light from the infrared object, resulting in a significant reduction in the infrared signal received by the detector of the infrared imager . Thus, the presence of interfering factors in extremely complex environments prevents the infrared imager from capturing clear images.…”

Section: Resultsmentioning

confidence: 99%

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Bioinspired Near-Full Transmittance MgF₂ Window for Infrared Detection in Extremely Complex Environments

Ding

Liu

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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Due to the extreme complexity of the anti-reflective subwavelength structure (ASS) parameters and the drastic limitation of Gaussian beam manufacturing accuracy, it remains a great challenge to manufacture ASS with ultrahigh transmittance on the surface of infrared window materials (such as magnesium fluoride (MgF2)) directly by femtosecond laser. Here, a design, manufacturing, and characterization method that can produce an ultrahigh-performance infrared window by femtosecond laser Bessel beam is proposed. Inspired by the excellent anti-reflective and hydrophobic properties of the special structure of dragonfly wings, a similar structural pattern with grid-distributed truncated cones is designed and optimized for its corresponding parameters to achieve near-full transmittance. The desired submicron structures are successfully fabricated by a Bessel beam after effectively shaping the beam. As a practical application, the bioinspired ASS is manufactured on the surface of MgF2, achieving an ultrahigh transmittance of 99.896% in the broadband of 3–5 μm, ultrawide angle of incidence (over 70% at 75° incidence), and good hydrophobicity with a water contact angle of 99.805°. Results from infrared thermal imaging experiments show that the ultrahigh-transmittance MgF2 window has superior image acquisition and anti-interference performance (3.9–8.6% image contrast enhancement and more accurate image edge recognition) in an environment with multiple interfering factors, which may play a significant role in facilitating applications of infrared thermal imaging technologies in extremely complex environments.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Bioinspired Near-Full Transmittance MgF₂ Window for Infrared Detection in Extremely Complex Environments

Ding

Liu

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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“…Este procedimiento incrementa su complejidad al considerar más variables, aunque en primera instancia parezca sencillo. La obtención de temperaturas absolutas con una cámara Infrarroja (IR, del inglés: infrared) necesita relacionar variables como la temperatura del objeto de interés, su distancia con respecto a la cámara, la humedad del ambiente, la temperatura del medio ambiente y de la atmósfera, la emisividad del objeto, el índice de transmisión de la atmósfera, así como la cantidad de partículas de polvo presentes en el ambiente [13], [14]. Reuniendo los conceptos anteriores y complementándolos con teorías fundamentales de transferencia de calor, tomó fuerza en la década de los 90 el concepto de Termografía Infrarroja Cuantitativa (QIRT, del inglés: quantitative infrared thermography).…”

Section: Conceptos Y Evolución Del Tndtunclassified

El ensayo no destructivo usando termografía infrarroja en el mundo y en América Latina: Una revisión

2022

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En este artículo se sintetiza una revisión de los principales trabajos relacionados con ensayo no destructivo usando termografía infrarroja incluyendo aportes realizados por investigadores de América Latina. Se encontró en este campo una tendencia creciente de la producción académica en los últimos años, lo cual ratifica que es un área de interés y desarrollo continuo. El resultado de la revisión se clasificó en cuatro líneas temáticas cubriendo principalmente: i) trabajos que recopilan el estado del arte, ii) desarrollos en técnicas de procesamiento de información térmica, iii) indicadores de desempeño y iv) simulación, modelos térmicos y campos de aplicación. Adicionalmente, se registraron los países tradicionales y emergentes que están generando contribuciones en el sector del ensayo no destructivo usando termografía infrarroja. Finalmente, se identificó cómo el enfoque actual del procesamiento de información térmica está orientado al procesamiento de secuencias de imágenes, donde el número de técnicas es cada vez mayor y se evidenció una reducida cantidad de métricas para la evaluación objetiva de su rendimiento

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“…These methods cannot provide excellent segmentation results. Hence, infrared thermal imaging has received extensive attention from academia and industry since it is less affected by the above conditions [3]. Although thermal imaging can mitigate the effects of environmental lighting factors [4], thermal imaging techniques may produce images with low resolution and blurred object boundaries that make it harder to distinguish between the thermal radiation of the background and pedestrians [5].…”

Section: Introductionmentioning

confidence: 99%

A Lightweight and Efficient Infrared Pedestrian Semantic Segmentation Method

LIU,

MEI,

YOU

et al. 2023

IEICE Trans. Inf. & Syst.

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The thermal imaging pedestrian segmentation system has excellent performance in different illumination conditions, but it has some drawbacks(e.g., weak pedestrian texture information, blurred object boundaries). Meanwhile, high-performance large models have higher latency on edge devices with limited computing performance. To solve the above problems, in this paper, we propose a real-time thermal infrared pedestrian segmentation method. The feature extraction layers of our method consist of two paths. Firstly, we utilize the lossless spatial downsampling to obtain boundary texture details on the spatial path. On the context path, we use atrous convolutions to improve the receptive field and obtain more contextual semantic information. Then, the parameter-free attention mechanism is introduced at the end of the two paths for effective feature selection, respectively. The Feature Fusion Module (FFM) is added to fuse the semantic information of the two paths after selection. Finally, we accelerate method inference through multi-threading techniques on the edge computing device. Besides, we create a high-quality infrared pedestrian segmentation dataset to facilitate research. The comparative experiments on the self-built dataset and two public datasets with other methods show that our method also has certain effectiveness. Our code is available at https://github.com/mcjcs001/LEIPNet.

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Research on the Influence of Multiple Interference Factors on Infrared Temperature Measurement

Cited by 12 publications

References 15 publications

Bioinspired Near-Full Transmittance MgF₂ Window for Infrared Detection in Extremely Complex Environments

Bioinspired Near-Full Transmittance MgF₂ Window for Infrared Detection in Extremely Complex Environments

El ensayo no destructivo usando termografía infrarroja en el mundo y en América Latina: Una revisión

A Lightweight and Efficient Infrared Pedestrian Semantic Segmentation Method

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Research on the Influence of Multiple Interference Factors on Infrared Temperature Measurement

Cited by 12 publications

References 15 publications

Bioinspired Near-Full Transmittance MgF2 Window for Infrared Detection in Extremely Complex Environments

Bioinspired Near-Full Transmittance MgF2 Window for Infrared Detection in Extremely Complex Environments

El ensayo no destructivo usando termografía infrarroja en el mundo y en América Latina: Una revisión

A Lightweight and Efficient Infrared Pedestrian Semantic Segmentation Method

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Product

Resources

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Bioinspired Near-Full Transmittance MgF₂ Window for Infrared Detection in Extremely Complex Environments

Bioinspired Near-Full Transmittance MgF₂ Window for Infrared Detection in Extremely Complex Environments