Results 111 to 120 of about 7,481 (164)

Laser backlight for multispectral camera

Proceedings of the 33th All-Russian Youth Exhibition of Innovations - InnoExh '22/1, 2022
A laser backlight device has been developed for the operation of a multispectral camera at night. Methods of laser backlight were considered. The simplest backlight method that can be used for multispectral cameras is chosen. Its simplicity is calculated in the number of accepted components.
D. A. Trefilov, E. A. Antonov, A. A. Kupriyanov   +2 more
openaire   +1 more source

Multispectral thermal camera using copper plasmonics

Emerging Imaging and Sensing Technologies for Security and Defence VI, 2021
Spectral imaging allows data acquisition at any particular frequency range in the electromagnetic (EM) spectrum to extract additional information. The light energy emitted from the sources or reflected by the objects is selectively sensed in specific bands of the EM spectrum to produce images.
Noore Karishma Shaika, Luke Weston, Bryce Widdicombe, Ranjith Rajasekharan Unnithan, Bin Lee   +4 more
openaire   +1 more source

Multispectral terahertz camera

2009 International Conference on Electromagnetics in Advanced Applications, 2009
We describe a broadband terahertz camera based on a modular 64-element linear array of superconducting hot-spot microbolometers. Unlike many superconducting sensor arrays, the readout for this array is performed entirely by uncooled electronics; no SQUIDs or cryogenic HEMTs are employed.
E. N. Grossman, C. R. Dietlein, M. Leivo, A. Rautiainen, A. Luukanen   +4 more
openaire   +1 more source

Multispectral EO LOROP camera

SPIE Proceedings, 1998
Results of an investigation into the concept of a multi- spectral (Vis/MWIR) electro-optical long-range oblique-looking digital camera are presented. Choice of the medium-wave band for the IR channel is discussed. An advanced EO camera would take advantage of available multi-element two-dimensional focal-plane-array sensors. Such detectors being of the
Jens-Rainer Hoefft, Traugott Tietz
openaire   +1 more source

Compact CMOS multispectral/polarimetric camera

SPIE Proceedings, 2006
A novel, compact visible multispectral, polarimetric camera is under development. The prototype is capable of megapixel imaging with sixteen wavebands and three polarimetric images. The entire system encompasses a volume less than 125mm x 100mm x 75mm.
Brian Catanzaro, Jim Lorenz, Mark Dombrowski   +2 more
openaire   +1 more source

Multispectral and Hyperspectral CAOS camera

Light, Energy and the Environment, 2016
Proposed is the multispectral and hyperspectral CAOS camera. This camera simultaneously and independently detects image information for two different spectral bands providing special features such as extremely high dynamic range.
Nabeel A. Riza, J. Pablo La Torre
openaire   +1 more source

Evaluation of multispectral plenoptic camera

SPIE Proceedings, 2013
Plenoptic cameras enable capture of a 4D lightfield, allowing digital refocusing and depth estimation from data captured with a compact portable camera. Whereas most of the work on plenoptic camera design has been based a simplistic geometric-optics-based characterization of the optical path only, little work has been done of optimizing end-to-end ...
Lingfei Meng, Ting Sun, Rich Kosoglow, Kathrin Berkner   +3 more
openaire   +1 more source

Autofocus for multispectral camera using focus symmetry

Applied Optics, 2012
A multispectral camera acquires spectral color images with high fidelity by splitting the light spectrum into more than three bands. Because of the shift of focal length with wavelength, the focus of each channel should be mechanically adjusted in order to obtain sharp images. Because progressive adjustment is quite time consuming, the clear focus must
Shen, HL, Zheng, ZH, Wang, W, Du, X, Shao, S, Xin, JH   +5 more
openaire   +3 more sources

Low-Cost Synchronization for Multispectral Cameras

2015 12th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), 2015
In this paper, we introduce a low-cost multicamera synchronization approach. Our system is low-cost to make, easy to handle and convenient to use. Proposed system can be employed in single- and multi- spectral various cameras, and also used in any devices which support the external trigger.
Soonmin Hwang, Yukyung Choi, Namil Kim, Kibaek Park, Jae Shin Yoon, In So Kweon   +5 more
openaire   +1 more source

Mosaic multispectral focal plane array cameras

SPIE Proceedings, 2004
Mosaic technology has gained considerable popularity and has become mainstay in commercial digital color cameras. In a mosaicked sensor, each pixel detector is covered with a wavelength-specific optical filter. Since only one spectral band is sensed at each pixel, the other bands must be estimated from neighboring pixels.
Rajeev Ramanath, Wesley E. Snyder, Hairong Qi   +2 more
openaire   +1 more source