Results 171 to 180 of about 1,840,836 (218)

Active and passive SWIR imaging polarimetry

SPIE Proceedings, 2002
Efforts to understand the potential for polarization information to improve our target acquisition capability have been extended from the mid and long wave IR regions into the short wave IR. A passive, complete rotating- retarder Stokes imaging polarimeter has been developed, calibrated, and field tested.
Miranda A. Miller, Robert V. Blumer, James D. Howe   +2 more
openaire   +1 more source

Extended SWIR imaging for targeting and reconnaissance

Infrared Technology and Applications XLIV, 2018
In the recent years AIM has developed IR modules for imaging applications sensitive in the extended SWIR (eSWIR) spectral range with a cut-off wavelength of 2.5μm. The modules are based on AIM’s state-of-the-art MCT FPA technology with a dedicated ROIC integrated in a low size, weight and power (SWaP) Dewar/Cooler configuration.
Alexander Sieck, Joachim Wendler, Tobias Ihle, Andreas Weber, Heinrich Figgemeier, Detlef Eich, Matthias Benecke, Rainer Breiter   +7 more
openaire   +1 more source

MCT SWIR modules for active imaging

Infrared Technology and Applications XLV, 2019
For improved long-range reconnaissance applications, a SWIR module for active imaging was developed at AIM. Using laser illumination together with gated viewing (GV) capability reduces noise, amount of background clutter and path radiance and helps e.g. to see through smoke obscuration.
Rainer Breiter, Matthias Benecke, Detlef Eich, Heinrich Figgemeier, Holger Lutz, Alexander Sieck, Andreas Weber, Robert Wiegleb   +7 more
openaire   +1 more source

Extended SWIR imaging sensors for hyperspectral imaging applications

SPIE Proceedings, 2016
AIM has developed SWIR modules including FPAs based on liquid phase epitaxy (LPE) grown MCT usable in a wide range of hyperspectral imaging applications. Silicon read-out integrated circuits (ROIC) provide various integration and readout modes including specific functions for spectral imaging applications.
A. Weber, M. Benecke, J. Wendler, A. Sieck, D. Hübner, H. Figgemeier, R. Breiter   +6 more
openaire   +1 more source

Multimodal Image Registration between SWIR and LWIR Images in an Embedded System

2018 21st Euromicro Conference on Digital System Design (DSD), 2018
We present an algorithm for multimodal registration between short-wave and long-wave infrared images. We use a histogram of oriented gradients to extract features in each image, the Chi-square distance to match the features, a projective transformation to map the objective image onto the reference system, and bilinear interpolation to obtain the pixel ...
Javier Cardenas, Miguel E. Figueroa
openaire   +1 more source

VIS-SWIR wideband lens-free imaging

Optics and Biophotonics in Low-Resource Settings VII, 2021
Lens-free imaging (LFI) has become an important microscopy tool in many life science and industrial applications. Due to the absence of optical lenses (such as objectives) and accompanying lens aberrations (such as chromatic aberrations), the LFI modality is well suited for optical inspection of microscopic objects in a wide spectral range.
Ziduo Lin, Abdulkadir Yurt, Geert Vanmeerbeeck, Murali Jayapala, Zhenxiang Luo, Jiwon Lee, Joo Hyoung Kim, Pawel Malinowski, Andy Lambrechts   +8 more
openaire   +1 more source

Image change detection using a SWIR active imaging system

SPIE Proceedings, 2013
We are currently developing a system consisting of a GPS receiver, a three-axis magnetic compass as well as a digital video camera in order to visualize changes occuring along a regularily used itinerary. This is done by comparing actual images with images from the same scene, which have been acquired during a previous measurement.
Armin L. Schneider, David Monnin, Martin Laurenzis, Frank Christnacher   +3 more
openaire   +1 more source

NIR/SWIR imaging spectrometer for light satellites

SPIE Proceedings, 1994
There has been long-standing interest in satellite-borne imaging IR sensors for a variety of applications in the commercial, environmental, and defense sectors. Recent availability of high quality, low-cost IR focal plane arrays and high-speed processing hardware has lead to the development of several optically-filtered radiometric imaging sensor ...
Anthony J. Ratkowski, Ronald J. Huppi, Matthew P. Fetrow   +2 more
openaire   +1 more source

SWIR active polarization imaging for material identification

SPIE Proceedings, 2013
ABSTRACT Nighttime active SWIR imaging has resolution, size, weight, and power consumption advantages over passiveMWIR and LWIR imagers for applications involving target identi cation. We propose that the target discrim-ination capability of active SWIR systems can be extended further by exerting polarization control over theillumination source and ...
Daniel A. LeMaster, Adoum H. Mahamat, Bradley M. Ratliff, Andrey S. Alenin, J. Scott Tyo, Bradley M. Koch   +5 more
openaire   +1 more source

High-resolution SWIR arrays for imaging at night

SPIE Proceedings, 2004
We describe innovations in short wave infrared (SWIR) InGaAs focal plane arrays and cameras which now allow imaging under starlight only conditions at video rates. These lattice matched In.53Ga.47As imagers detect 0.9 μm to 1.7 μm SWIR band light, which is generally reflected from the imaged target.
Martin H. Ettenberg, Michael A. Blessinger, Matthew T. O'Grady, Shi-Che Huang, Robert M. Brubaker, Marshall J. Cohen   +5 more
openaire   +1 more source