| Autor: |
Aguerre, José Pedro, García‐Nevado, Elena, Acuña Paz y Miño, Jairo, Fernández, Eduardo, Beckers, Benoit |
| Předmět: |
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| Zdroj: |
Computer Graphics Forum; Sep2020, Vol. 39 Issue 6, p377-391, 15p, 2 Color Photographs, 5 Diagrams, 2 Charts, 10 Graphs |
| Abstrakt: |
Urban thermography is a non‐invasive measurement technique commonly used for building diagnosis and energy efficiency evaluation. The physical interpretation of thermal images is a challenging task because they do not necessarily depict the real temperature of the surfaces, but one estimated from the measured incoming radiation. In this sense, the computational rendering of a thermal image can be useful to understand the results captured in a measurement campaign. The computer graphics community has proposed techniques for light rendering that are used for its thermal counterpart. In this work, a physically based simulation methodology based on a combination of the finite element method (FEM) and ray tracing is presented. The proposed methods were tested using a highly detailed urban geometry. Directional emissivity models, glossy reflectivity functions and importance sampling were used to render thermal images. The simulation results were compared with a set of measured thermograms, showing good agreement between them. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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