A database of high dynamic range visible and near-infrared multispectral images

2008 ◽  
Author(s):  
Manu Parmar ◽  
Francisco Imai ◽  
Sung Ho Park ◽  
Joyce Farrell
Keyword(s):  
Near Infrared ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
Multispectral Images ◽  
High Dynamic

scholarly journals Thermal Imaging Metrology Using High Dynamic Range Near-Infrared Photovoltaic-Mode Camera

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6151
Author(s):  
Thomas B. O. Rockett ◽  
Nicholas A. Boone ◽  
Robert D. Richards ◽  
Jon R. Willmott
Keyword(s):  
Measurement Uncertainty ◽  
Wide Temperature Range ◽  
Thermal Imaging ◽  
Near Infrared ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
Thermal Camera ◽  
Temperature Range ◽  
Photovoltaic Mode ◽  
High Dynamic

The measurement of a wide temperature range in a scene requires hardware capable of high dynamic range imaging. We describe a novel near-infrared thermal imaging system operating at a wavelength of 940 nm based on a commercial photovoltaic mode high dynamic range camera and analyse its measurement uncertainty. The system is capable of measuring over an unprecedently wide temperature range; however, this comes at the cost of a reduced temperature resolution and increased uncertainty compared to a conventional CMOS camera operating in photodetective mode. Despite this, the photovoltaic mode thermal camera has an acceptable level of uncertainty for most thermal imaging applications with an NETD of 4–12 °C and a combined measurement uncertainty of approximately 1% K if a low pixel clock is used. We discuss the various sources of uncertainty and how they might be minimised to further improve the performance of the thermal camera. The thermal camera is a good choice for imaging low frame rate applications that have a wide inter-scene temperature range.

Near-infrared transillumination with high dynamic range imaging for occlusal caries detection in vitro

2020 ◽  
Vol 35 (9) ◽  
pp. 2049-2058
Author(s):  
Friederike Litzenburger ◽  
Alexander Lederer ◽  
Maximilian Kollmuß ◽  
Reinhard Hickel ◽  
Karl-Heinz Kunzelmann ◽  
...  
Keyword(s):  
Near Infrared ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
Caries Detection ◽  
High Dynamic Range Imaging ◽  
Range Imaging ◽  
Occlusal Caries ◽  
Occlusal Caries Detection ◽  
High Dynamic

High-dynamic-range interferometric bragg-cell spectrum analyser

1986 ◽  
Vol 133 (1) ◽  
pp. 26
Author(s):  
J. Mellis ◽  
G.R. Adams ◽  
K.D. Ward
Keyword(s):  
Dynamic Range ◽  
High Dynamic Range ◽  
Spectrum Analyser ◽  
High Dynamic
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