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Characterization of a compact 6-band multifunctional camera based on patterned spectral filters in the focal plane
(2014)
In some applications of multi- or hyperspectral imaging, it is important to have a compact sensor. The most compact spectral imaging sensors are based on spectral filtering in the focal plane. For hyperspectral imaging, ...
Compact multispectral multi-camera imaging system for small UAVs
(2016)
Cameras with filters in the focal plane provide the most compact solution for multispectral imaging. A small UAV can carry multiple such cameras, providing large area coverage rate at high spatial resolution. We investigate ...
Information capacity as a figure of merit for spectral imagers: the trade-off between resolution and coregistration
(2013)
The performance of spectral imagers is customarily described by several characteristics including resolution, noise, and coregistration. These must be traded off against each other in a practical imager design. This paper ...
Wireless power transfer in the presence of metallic plates: Experimental results
(2013)
We demonstrate efficient wireless power transfer between two high Q resonators, especially in a complex electromagnetic environment. In the close proximity of metallic plates, the transfer efficiency stays roughly the same ...
Pixel scaling in infrared focal plane arrays
(2013)
We discuss effects that arise in pixels of IR focal plane arrays (FPAs) when pixel size scales down to approach the wavelength of the incident radiation. To study these effects, we perform first-principles electromagnetic ...
Enhancing far-field thermal emission with thermal extraction
(2013)
The control of thermal radiation is of great current importance for applications such as energy conversions and radiative cooling. Here we show theoretically that the thermal emission of a finite-size blackbody emitter can ...
Sensor noise informed representation of hyperspectral data, with benefits for image storage and processing
(2011)
Many types of hyperspectral image processing can benefit from knowledge of noise levels in the data, which can be derived from sensor physics. Surprisingly, such information is rarely provided or exploited. Usually, the ...
SYSIPHE system: A state of the art airborne hyperspectral imaging system. Initial results from the first airborne campaign
(2014)
SYSIPHE is an airborne hyperspectral imaging system, result of a cooperation between France (Onera and DGA) and Norway (NEO and FFI). It is a unique system by its spatial sampling -0.5m with a 500m swath at a ground height ...
Thermal infrared reference sources fabricated from low-cost components and materials
(2018)
Mass markets, including mobile phones and automotive sensors, drive rapid developments of imaging technologies
toward high performance, low cost sensors, even for the thermal infrared. Good infrared calibration blackbody ...
Full characterization of spatial coregistration errors and spatial resolution in spectral imagers
(2018)
For multi- and hyperspectral imagers, the integrity of the spectral information depends critically on the spatial coregistration between bands. There is at present no commonly accepted way to fully specify coregistration ...