Toward SI Traceability of a Monte Carlo Radiative Transfer Model in the Visible Range

Priit Jaanson, Agnieszka Bialek, Claire Greenwell, Henrik Mantynen, Jean Luc Widlowski, Farshid Manoocheri, Antti Lassila, Nigel Fox, Erkki Ikonen

Research output: Contribution to journalArticleScientificpeer-review

Abstract

A 3-D Monte Carlo (MC) ray-tracing radiative transfer model is tested for its ability to simulate the bidirectional reflectance factors (BRFs) of a grooved artificial target given SI-traceable measurements of the optical and topographic properties of the target's surface. The optical properties of a grooved target and an identical flat target were measured with the goniospectrophotometer at the National Metrology Institute of U.K. (NPL) and are traceable to the NPL scales of radiance factor. The topographic measurements were performed with the coordinate measuring machine at the National Metrology Institute of Finland (MIKES), and are traceable to the realization of the meter. The BRFs of the flat target were used to parameterize analytical scattering functions for rough surfaces. Similarly, the topographic measurement results were used to construct a structural model of the grooved target. Each element within this structural model then had its optical properties defined by the parameterized scattering function before the 3-D MC model simulated the BRFs of the grooved target under well-defined illumination and viewing conditions. The measured and modeled BRFs agreed for 72% of the measured geometries in the plane of incidence within the measurement and modeling uncertainties. The relative root-mean-squared (RMSE) error was 0.19. In the plane orthogonal to the plane of incidence, the measured and modeled BRFs agreed for 45% of the measured geometries, and the relative RMSE between measured and modeled values was 0.65.

Original languageEnglish
Pages (from-to)1360-1373
Number of pages14
JournalIEEE Transactions on Geoscience and Remote Sensing
Volume56
Issue number3
DOIs
Publication statusPublished - Mar 2018
MoE publication typeA1 Journal article-refereed

Fingerprint

bidirectional reflectance
Radiative transfer
radiative transfer
optical property
scattering
geometry
Optical properties
Scattering
ray tracing
Coordinate measuring machines
Geometry
radiance
Ray tracing
Lighting
modeling

Keywords

  • Accuracy
  • Atmospheric modeling
  • bidirectional reflectance factor (BRF)
  • Coordinate measuring machines
  • cost function
  • Data models
  • Measurement uncertainty
  • Metrology
  • model validation
  • Monte Carlo (MC) methods
  • parameter estimation
  • radiative transfer (RT)
  • ray tracing
  • Scattering
  • SI traceability
  • Solid modeling
  • uncertainty

Cite this

Jaanson, P., Bialek, A., Greenwell, C., Mantynen, H., Widlowski, J. L., Manoocheri, F., ... Ikonen, E. (2018). Toward SI Traceability of a Monte Carlo Radiative Transfer Model in the Visible Range. IEEE Transactions on Geoscience and Remote Sensing, 56(3), 1360-1373. https://doi.org/10.1109/TGRS.2017.2761988
Jaanson, Priit ; Bialek, Agnieszka ; Greenwell, Claire ; Mantynen, Henrik ; Widlowski, Jean Luc ; Manoocheri, Farshid ; Lassila, Antti ; Fox, Nigel ; Ikonen, Erkki. / Toward SI Traceability of a Monte Carlo Radiative Transfer Model in the Visible Range. In: IEEE Transactions on Geoscience and Remote Sensing. 2018 ; Vol. 56, No. 3. pp. 1360-1373.
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Jaanson, P, Bialek, A, Greenwell, C, Mantynen, H, Widlowski, JL, Manoocheri, F, Lassila, A, Fox, N & Ikonen, E 2018, 'Toward SI Traceability of a Monte Carlo Radiative Transfer Model in the Visible Range', IEEE Transactions on Geoscience and Remote Sensing, vol. 56, no. 3, pp. 1360-1373. https://doi.org/10.1109/TGRS.2017.2761988

Toward SI Traceability of a Monte Carlo Radiative Transfer Model in the Visible Range. / Jaanson, Priit; Bialek, Agnieszka; Greenwell, Claire; Mantynen, Henrik; Widlowski, Jean Luc; Manoocheri, Farshid; Lassila, Antti; Fox, Nigel; Ikonen, Erkki.

In: IEEE Transactions on Geoscience and Remote Sensing, Vol. 56, No. 3, 03.2018, p. 1360-1373.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Bialek, Agnieszka

AU - Greenwell, Claire

AU - Mantynen, Henrik

AU - Widlowski, Jean Luc

AU - Manoocheri, Farshid

AU - Lassila, Antti

AU - Fox, Nigel

AU - Ikonen, Erkki

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AB - A 3-D Monte Carlo (MC) ray-tracing radiative transfer model is tested for its ability to simulate the bidirectional reflectance factors (BRFs) of a grooved artificial target given SI-traceable measurements of the optical and topographic properties of the target's surface. The optical properties of a grooved target and an identical flat target were measured with the goniospectrophotometer at the National Metrology Institute of U.K. (NPL) and are traceable to the NPL scales of radiance factor. The topographic measurements were performed with the coordinate measuring machine at the National Metrology Institute of Finland (MIKES), and are traceable to the realization of the meter. The BRFs of the flat target were used to parameterize analytical scattering functions for rough surfaces. Similarly, the topographic measurement results were used to construct a structural model of the grooved target. Each element within this structural model then had its optical properties defined by the parameterized scattering function before the 3-D MC model simulated the BRFs of the grooved target under well-defined illumination and viewing conditions. The measured and modeled BRFs agreed for 72% of the measured geometries in the plane of incidence within the measurement and modeling uncertainties. The relative root-mean-squared (RMSE) error was 0.19. In the plane orthogonal to the plane of incidence, the measured and modeled BRFs agreed for 45% of the measured geometries, and the relative RMSE between measured and modeled values was 0.65.

KW - Accuracy

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KW - ray tracing

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KW - uncertainty

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JF - IEEE Transactions on Geoscience and Remote Sensing

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