Dr. Lars Trygve Heen Profile

Dr. Lars Trygve Heen

Senior Scientist at Norwegian Defense Research Establishment

SPIE Involvement:

Author

Publications (12)

Proceedings Article | 26 April 2018 Paper

Detection metrics and ship [D]RI

Arthur van Rheenen, Lars Heen, Eirik Madsen, Erik Brendhagen, Kristin Løkken, Bernt Almklov, Eirik Glimsdal

Proceedings Volume 10625, 106250V (2018) https://doi.org/10.1117/12.2304583

KEYWORDS: Long wavelength infrared, Mid-IR, Spatial frequencies, Target recognition, Minimum resolvable temperature difference, Target detection, Sensors, Cameras, Targeting Task Performance metric, Spatial resolution

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Proceedings Article | 13 October 2014 Paper

Obtaining spectral information from infrared scenarios using hyper-spectral cameras and cameras with spinning filter wheel

Eirik Glimsdal, Erik Brendhagen, Jan Brede Thomassen, Arthur van Rheenen, Lars Heen

Proceedings Volume 9250, 92500M (2014) https://doi.org/10.1117/12.2066849

KEYWORDS: Optical filters, Cameras, Sensors, Infrared cameras, Image filtering, Infrared radiation, Carbon dioxide, Infrared imaging, Image sensors, Infrared sensors

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Proceedings Article | 17 December 2012 Paper

Measurements of IR propagation in the marine boundary layer during the September 2011 SQUIRREL trial

Lars Trygve Heen, Arthur van Rheenen, Eirik Glimsdal

Proceedings Volume 8535, 853506 (2012) https://doi.org/10.1117/12.981644

KEYWORDS: Distance measurement, Atmospheric propagation, Cameras, Black bodies, Atmospheric modeling, Mid-IR, Ocean optics, Sensors, Infrared radiation, Environmental sensing

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Proceedings Article | 1 October 2009 Paper

Comparison of distance dependence of ship signature and intensity of ship exhaust gas measured in both MWIR and LWIR transmission bands

Arthur van Rheenen, Erik Brendhagen, Lars Trygve Heen

Proceedings Volume 7476, 747605 (2009) https://doi.org/10.1117/12.830317

KEYWORDS: Mid-IR, Long wavelength infrared, Cameras, Infrared spectroscopy, Black bodies, Infrared cameras, Molecules, Infrared signatures, Infrared imaging, Infrared radiation

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Proceedings Article | 1 October 2008 Paper

Measurements and modeling of the vertical radiance profile of sea and sky backgrounds using infrared sensors

Arthur van Rheenen, Erik Brendhagen, Lars Heen

Proceedings Volume 7108, 710804 (2008) https://doi.org/10.1117/12.800187

KEYWORDS: Cameras, Temperature metrology, Mid-IR, Long wavelength infrared, Black bodies, Optical filters, Scattering, Spectroscopy, Solar radiation models, Sensors

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Proceedings Article | 29 October 2007 Paper

Measurements of IR propagation in the marine boundary layer in warm and humid atmospheric conditions

Lars Trygve Heen, Eirik Blix Madsen, Pål Steenfeldt-Foss, Kjell Wikan, Helge Fonnum, Arthur Dirk van Rheenen, Erik Brendhagen, Bernt Almklov

Proceedings Volume 6747, 674706 (2007) https://doi.org/10.1117/12.737701

KEYWORDS: Atmospheric propagation, Cameras, Scintillation, Black bodies, Mid-IR, Temperature metrology, Ocean optics, Infrared radiation, Infrared cameras, Long wavelength infrared

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Proceedings Article | 29 October 2007 Paper

Measurements of the relative intensity of ship exhaust gas as a function of distance to infrared sensors

Arthur van Rheenen, Erik Brendhagen, Lars Trygve Heen, Eirik Blix Madsen, Helge Fonnum, Pål Steenfeldt-Foss, Kjell Wikan, Bernt Almklov

Proceedings Volume 6747, 674709 (2007) https://doi.org/10.1117/12.737061

KEYWORDS: Cameras, Long wavelength infrared, Mid-IR, Humidity, Infrared cameras, Clouds, Black bodies, Infrared imaging, Calibration, Gases

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Proceedings Article | 29 October 2007 Paper

Measurements of the vertical radiance profile using infrared sensors

Arthur van Rheenen, Erik Brendhagen, Lars Trygve Heen, Eirik Blix Madsen, Helge Fonnum, Pål Steenfeldt-Foss, Kjell Wikan, Bernt Almklov

Proceedings Volume 6747, 674708 (2007) https://doi.org/10.1117/12.737057

KEYWORDS: Cameras, Optical filters, Spectroscopy, Calibration, FT-IR spectroscopy, Medium wave, Sensors, Infrared cameras, Carbon dioxide, Black bodies

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Proceedings Article | 5 October 2006 Paper

Measurements of the effect of falling snow on imaging with infrared cameras

Arthur van Rheenen, Lars Heen, Eirik Madsen, Erik Brendhagen, Kjell Wikan

Proceedings Volume 6395, 639507 (2006) https://doi.org/10.1117/12.689699

KEYWORDS: Visibility, Cameras, Long wavelength infrared, Temperature metrology, Mid-IR, Sensors, Content addressable memory, Black bodies, Infrared cameras, Humidity

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Proceedings Article | 11 November 2004 Paper

Measurements of IR and visual propagation in the marine boundary layer

Lars Heen, Eirik Madsen, Oddvar Selnes

Proceedings Volume 5572, (2004) https://doi.org/10.1117/12.565220

KEYWORDS: Scintillation, Infrared cameras, Sensors, Cameras, Mid-IR, Visualization, Ocean optics, Turbulence, Atmospheric propagation, Infrared radiation

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Proceedings Article | 5 September 2003 Paper

ShipIR model validation using spectral measurement results from the NATO SIMVEX trial

Erik Brendhagen, Lars Heen

Proceedings Volume 5075, (2003) https://doi.org/10.1117/12.485859

KEYWORDS: Temperature metrology, FT-IR spectroscopy, Sensors, Atmospheric modeling, Sun, Black bodies, Meteorology, Infrared cameras, Infrared imaging, Calibration

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Proceedings Article | 5 September 2003 Paper

ShipIR model validation using NATO SIMVEX experiment results

Doug Fraedrich, Espen Stark, Lars Heen, Craig Miller

Proceedings Volume 5075, (2003) https://doi.org/10.1117/12.485684

KEYWORDS: Infrared signatures, Thermal modeling, 3D modeling, Mid-IR, Error analysis, Analytical research, Temperature metrology, Defense and security, Infrared radiation, Data modeling

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Showing 5 of 12 publications

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