Mr. Alexis Matwyschuk Profile

Alexis Matwyschuk

at Institut Franco-Allemand de Recherches Saint-Louis

SPIE Involvement:

Author

Publications (11)

Proceedings Article | 15 November 2024 Presentation + Paper

Advanced perception using single photon imaging

Martin Laurenzis, Emmanuel Bacher, Stéphane Schertzer, Jean-Michel Poyet, Alexis Matwyschuk, Yves Lutz, Frank Christnacher

Proceedings Volume 13204, 1320405 (2024) https://doi.org/10.1117/12.3031466

KEYWORDS: Single photon avalanche diodes, Quantum sensors, Sensors, Active imaging, Photon counting, Photodetectors, Non line of sight propagation, Cameras, Detector arrays, Time correlated photon counting

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Proceedings Article | 1 November 2024 Presentation + Paper

UAV detection: a review of ISL researches over the past ten years

F. Christnacher, M. Laurenzis, M. Rebert, A. Matwyschuk

Proceedings Volume 13200, 1320002 (2024) https://doi.org/10.1117/12.3033102

KEYWORDS: Unmanned aerial vehicles, Active imaging, Object detection, Detection and tracking algorithms, Sensors, Short wave infrared radiation, Pose estimation, Imaging systems, Databases

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Proceedings Article | 10 October 2019 Presentation + Paper

60 years of advanced imaging at ISL: from the Cranz-Schardin camera to non-line-of-sight imaging

F. Christnacher, M. Laurenzis, Y. Lutz, A. Matwyschuk

Proceedings Volume 11160, 1116007 (2019) https://doi.org/10.1117/12.2533902

KEYWORDS: Imaging systems, Visualization, Cameras, 3D modeling, Holography, Photons, Semiconductor lasers, 3D image reconstruction, Computational imaging, Sensors

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Proceedings Article | 21 October 2016 Presentation + Paper

Optical and acoustical UAV detection

Frank Christnacher, Sébastien Hengy, Martin Laurenzis, Alexis Matwyschuk, Pierre Naz, Stéphane Schertzer, Gwenael Schmitt

Proceedings Volume 9988, 99880B (2016) https://doi.org/10.1117/12.2240752

KEYWORDS: Unmanned aerial vehicles, Imaging systems, Defense and security, Video, Acoustics, Sensors, Short wave infrared radiation, Sensor networks, Detection and tracking algorithms, Cameras

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Proceedings Article | 21 May 2015 Paper

Electro-optical detection probability of optical devices determined by bidirectional laser retro-reflection cross section

Martin Laurenzis, Frank Christnacher, Alexis Matwyschuk, Stephane Schertzer, Sebastien Hengy

Proceedings Volume 9461, 94611L (2015) https://doi.org/10.1117/12.2175858

KEYWORDS: Sensors, Optical components, Sniper detection, LIDAR, Signal attenuation, Atmospheric optics, Electro optics, Active optics, Image resolution, Laser systems engineering

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Proceedings Article | 19 November 2012 Paper

Range-gated imaging with speckle-free and homogeneous laser illumination

Martin Laurenzis, Jean Poyet, Yves Lutz, Alexis Matwyschuk, Frank Christnacher

Proceedings Volume 8542, 854203 (2012) https://doi.org/10.1117/12.971433

KEYWORDS: Waveguides, Ray tracing, Laser applications, Imaging systems, Solid state lasers, Laser sources, Waveguide lasers, Speckle imaging, Short wave infrared radiation, Speckle

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SPIE Journal Paper | 7 May 2012

Homogeneous and speckle-free laser illumination for range-gated imaging and active polarimetry

Martin Laurenzis, Yves Lutz, Frank Christnacher, Alexis Matwyschuk, Jean-Michel Poyet

OE, Vol. 51, Issue 6, 061302, (May 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.6.061302

KEYWORDS: Speckle, Waveguides, Polarimetry, Semiconductor lasers, Solid state lasers, Imaging systems, Homogenization, Illumination engineering, Sensors, Laser sources

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Proceedings Article | 22 October 2004 Paper

Two approaches, coherent and incoherent, for the optical implementation of active contours

Pierre Ambs, Eric Hueber, Alexis Matwyschuk, Laurent Bigue, Frank Christnacher

Proceedings Volume 5557, (2004) https://doi.org/10.1117/12.561058

KEYWORDS: Image processing, Spatial light modulators, Optical correlators, Active optics, Image segmentation, Optical tracking, Image filtering, Cameras, Optical filters, Electronic filtering

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Proceedings Article | 10 November 2003 Paper

Analysis of an optical target tracking system implementing a snake-based segmentation

Alexis Matwyschuk, Pierre Ambs, Frank Christnacher

Proceedings Volume 5181, (2003) https://doi.org/10.1117/12.508277

KEYWORDS: Optical tracking, Cameras, Image filtering, Spatial light modulators, Iris recognition, Optical filters, Electronic filtering, Optical correlators, Detection and tracking algorithms, Polarization

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