Real-Time Near-Field Terahertz Field Imaging

Author(s):  
Christopher G. Wade
Keyword(s):  
2018 ◽  
Vol 53 (12) ◽  
pp. 3599-3612 ◽  
Author(s):  
Philipp Hillger ◽  
Ritesh Jain ◽  
Janusz Grzyb ◽  
Wolfgang Forster ◽  
Bernd Heinemann ◽  
...  

2009 ◽  
Vol 94 (3) ◽  
pp. 033303 ◽  
Author(s):  
D. Garrot ◽  
Y. Lassailly ◽  
K. Lahlil ◽  
J. P. Boilot ◽  
J. Peretti

1991 ◽  
Author(s):  
G. S. Kino ◽  
S. M. Mansfield

Author(s):  
Philipp Hillger ◽  
Ritesh Jain ◽  
Janusz Grzyb ◽  
Laven Mavarani ◽  
Bernd Heinemann ◽  
...  

Author(s):  
Shiyong Li ◽  
Shuoguang Wang ◽  
Moeness G. Amin ◽  
Guoqiang Zhao

Author(s):  
Christian Luksch ◽  
Lukas Prost ◽  
Michael Wimmer

We present a real-time rendering technique for photometric polygonal lights. Our method uses a numerical integration technique based on a triangulation to calculate noise-free diffuse shading. We include a dynamic point in the triangulation that provides a continuous near-field illumination resembling the shape of the light emitter and its characteristics. We evaluate the accuracy of our approach with a diverse selection of photometric measurement data sets in a comprehensive benchmark framework. Furthermore, we provide an extension for specular reflection on surfaces with arbitrary roughness that facilitates the use of existing real-time shading techniques. Our technique is easy to integrate into real-time rendering systems and extends the range of possible applications with photometric area lights.


2021 ◽  
pp. 073490412199344
Author(s):  
Wolfram Jahn ◽  
Frane Sazunic ◽  
Carlos Sing-Long

Synthesising data from fire scenarios using fire simulations requires iterative running of these simulations. For real-time synthesising, faster-than-real-time simulations are thus necessary. In this article, different model types are assessed according to their complexity to determine the trade-off between the accuracy of the output and the required computing time. A threshold grid size for real-time computational fluid dynamic simulations is identified, and the implications of simplifying existing field fire models by turning off sub-models are assessed. In addition, a temperature correction for two zone models based on the conservation of energy of the hot layer is introduced, to account for spatial variations of temperature in the near field of the fire. The main conclusions are that real-time fire simulations with spatial resolution are possible and that it is not necessary to solve all fine-scale physics to reproduce temperature measurements accurately. There remains, however, a gap in performance between computational fluid dynamic models and zone models that must be explored to achieve faster-than-real-time fire simulations.


Author(s):  
Lauren E. Barr ◽  
Peter Karlsen ◽  
Samuel H. Hornett ◽  
Ian R. Hooper ◽  
Christopher R. Lawrence ◽  
...  

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