Results 261 to 270 of about 1,316,422 (315)

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   +2 more sources

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

Spectral Signature Multiplexing in Multispectral Camera Communication

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), 2022
Optical camera communication (OCC) is a technology foreseen to have a fundamental role in future communication applications due to the ubiquity of the cameras embedded in most consumer electronic devices and their increasing capabilities (high resolution, scanning frequency, etcetera).
Daniel Moreno, Victor Guerra, Julio Francisco Rufo Torres, José Rabadán, Rafael Pérez Jiménez   +4 more
openaire   +2 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

Methods for spectral characterization of multispectral cameras

SPIE Proceedings, 2011
High fidelity color image acquisition requires an accurate characterization of the camera's spectral sensitivity curves to perform color calibration or spectral estimation. Several methods have been proposed to perform this task; these include characterizations via test charts, narrowband filters and methods utilizing a monochromator.
Julie Klein 0001, Johannes Brauers, Til Aach   +2 more
openaire   +2 more sources

On field radiometric calibration for multispectral cameras

2017 IEEE International Conference on Robotics and Automation (ICRA), 2017
Perception systems for outdoor robotics have to deal with varying environmental conditions. Variations in illumination in particular, are currently the biggest challenge for vision-based perception. In this paper we present an approach for radiometric characterization of multispectral cameras.
Raghav Khanna, Inkyu Sa, Juan I. Nieto 0001, Roland Siegwart   +3 more
openaire   +2 more sources

RADIOMETRIC CALIBRATION OF A MULTISPECTRAL CAMERA

2006
We describe in detail a method for calibrating a multispectral imaging system based on interference filters. The calibration aims to remove systematic noises introduced by the sensor, and optic and/or filters from multispectral images. After which, we can correct the non-linearity of the sensor response.
Alamin Mansouri, M. Sanchez, Franck Marzani, Pierre Gouton   +3 more
openaire   +2 more sources

Development of a multispectral camera system

SPIE Proceedings, 2000
A highly accurate multispectral camera and the application software have been developed as a practical system to capture digital images of the artworks stored in galleries and museums. Instead of recording color data in the conventional three RGB primary colors, the newly developed camera and the software carry out a pixel-wise estimation of spectral ...
Hiroaki Sugiura, Tetsuya Kuno, Norihiro Watanabe, Narihiro Matoba, Junichiro Hayashi, Yoichi Miyake   +5 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

AI-aided thermal imaging with multispectral camera for Direct Energy Deposition

2024 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0 & IoT)
Measuring the temperature of red-heat or molten metals is relevant for Additive Manufacturing (AM) process monitoring and control. Sensors commonly integrated in AM machines are pyrometers and thermal cameras: the first can provide accurate but localized
Vittorio Sala, A. Vandone, F. Mazzucato, Michele Banfi, Stefano Baraldo, Anna Valente   +5 more
semanticscholar   +1 more source