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Étude comparative de quatre méthodes statistiques pour l’estimation conjointe de l’émissivité et de la température par thermographie infrarouge multispectrale

Thibaud Toullier 1 Jean Dumoulin 1 Laurent Mevel 1, 2
1 I4S - Statistical Inference for Structural Health Monitoring
Inria Rennes – Bretagne Atlantique , COSYS - Département Composants et Systèmes
Abstract : This study addresses the simultaneous estimation of the surface temperature and emissivity of objects observed through in-situ infrared thermography. The conversion of the radiative flux to temperature is facing the lack of knowledge of the radiative properties of the scene and particularly the emissivity. The irradiance received at cameras’ sensors from a virtual target made of four known materials is simulated. Then, four statistical methods that estimate simultaneously the emissivity and the temperature are compared and their sensitivity is evaluated.
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Thibaud Toullier, Jean Dumoulin, Laurent Mevel. Étude comparative de quatre méthodes statistiques pour l’estimation conjointe de l’émissivité et de la température par thermographie infrarouge multispectrale. SFT 2020 - Congrès annuel de la Société Française de Thermique, Jun 2020, Belfort, France. pp.1-9. ⟨hal-02986521⟩

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