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Related papers: MICADO: The Multi-Adaptive Optics Camera for Deep …

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Occlusion-aware instance-sensitive segmentation is a complex task generally split into region-based segmentations, by approximating instances as their bounding box. We address the showcase scenario of dense homogeneous layouts in which this…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Matthieu Grard , Emmanuel Dellandréa , Liming Chen

The paper discusses an assessment study about the impact of the distortions on the astrometric observations with the Extremely Large Telescope originated from the optics positioning errors and telescope instabilities. Optical simulations…

Instrumentation and Methods for Astrophysics · Physics 2018-06-06 Gabriele Rodeghiero , Jörg-Uwe Pott , Carmelo Arcidiacono , Davide Massari , Martin Glück , Hannes Riechert , Eric Gendron

The prototype Robo-AO system at the Palomar Observatory 1.5-m telescope is the world's first fully automated laser adaptive optics instrument. Scientific operations commenced in June 2012 and more than 12,000 observations have since been…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Christoph Baranec , Reed Riddle , Nicholas M. Law , Mark R. Chun , Jessica R. Lu , Michael S. Connelley , Donald Hall , Dani Atkinson , Shane Jacobson

We propose DeepFusion, a modular multi-modal architecture to fuse lidars, cameras and radars in different combinations for 3D object detection. Specialized feature extractors take advantage of each modality and can be exchanged easily,…

Computer Vision and Pattern Recognition · Computer Science 2022-09-28 Florian Drews , Di Feng , Florian Faion , Lars Rosenbaum , Michael Ulrich , Claudius Gläser

Control of light through a microscope objective with a high numerical aperture is a common requirement in applications such as optogenetics, adaptive optics, or laser processing. Light propagation, including polarization effects, can be…

Optics · Physics 2023-03-22 Ivan Vishniakou , Johannes D. Seelig

The Extremely Large Telescopes will require hundreds of actuators across the pupil for high Strehl in the visible. We envision a triple-stage AO (TSAO) system for GMT/GMagAO-X to achieve this. The first stage is a 4K DM controlled by an IR…

Instrumentation and Methods for Astrophysics · Physics 2022-08-16 Sebastiaan Y. Haffert , Jared R. Males , Laird M. Close , Olivier Guyon , Alexander Hedglen , Maggie Kautz

Since 2014, the LBT's First Light Adaptive Optics (FLAO) system has also included a seldom used capability, known as Enhanced Seeing Mode (ESM), that can improve the angular resolution over a 4' x 4' field of view (FOV). In full AO…

Instrumentation and Methods for Astrophysics · Physics 2019-11-05 Barry Rothberg , Julian C. Christou , Douglas L. Miller , Dave Thompson , Gregory E. Taylor , Christian Veillet

There are 8000 galaxies, including 1600 at z larger than 1.6, which could be simultaneously observed in an E-ELT field of view of 40 sq. arcmin. A considerable fraction of astrophysical discoveries require large statistical samples, which…

Instrumentation and Methods for Astrophysics · Physics 2016-09-07 F. Hammer , S. Morris , L. Kaper , B. Barbuy , J. G. Cuby , M. Roth , P. Jagourel , C. J. Evans , M. Puech , E. Fitzsimons , G. Dalton , M. Rodrigues

{We report on an intensity-only and deep-learning based method for laser beam characterization that allows to predict the underlying optical field within milliseconds. A simple near-field / far-field camera setup enables online control of…

Exoplanet imaging has thus far enabled studies of wide-orbit ($>$10 AU) giant planet ($>$2 Jupiter masses) formation and giant planet atmospheres, with future 30 meter-class Extremely Large Telescopes (ELTs) needed to image and characterize…

Instrumentation and Methods for Astrophysics · Physics 2023-08-14 Benjamin L. Gerard , Daren Dillon , Sylvain Cetre , Rebecca Jensen-Clem

One of the key-points for the future developments of the multiconjugate adaptive optics for the astronomy is the availability of the correction for a large fraction of the sky. The sky coverage represents one of the limits of the existing…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 Carmelo Arcidiacono , Emiliano Diolaiti , Roberto Ragazzoni , Jacopo Farinato , Elise Vernet

MAORY is the Adaptive Optic (AO) module that will be installed at the E-ELT at the first light of the telescope. It will provide two different types of AO correction, a very high correction over a small FoV (diameter ~10 arcsec, SCAO mode)…

Instrumentation and Methods for Astrophysics · Physics 2019-06-10 G. Fiorentino , M. Bellazzini , P. Ciliegi , G. Chauvin , S. Douté , V. D'Orazi , E. Maiorano , F. Mannucci , M. Mapelli , L. Podio , P. Saracco , M. Spavone

The development of adaptive optics (AO) played a major role in modern astronomy over the last three decades. By compensating for the atmospheric turbulence, these systems enable to reach the diffraction limit on large telescopes. In this…

Instrumentation and Methods for Astrophysics · Physics 2017-01-05 Julien Milli , Dimitri Mawet , David Mouillet , Markus Kasper , Julien H. Girard

HiPERCAM is a high-speed camera for the study of rapid variability in the Universe. The project is funded by a 3.5MEuro European Research Council Advanced Grant. HiPERCAM builds on the success of our previous instrument, ULTRACAM, with very…

Instrumentation and Methods for Astrophysics · Physics 2016-12-14 V. S. Dhillon , T. R. Marsh , N. Bezawada , M. Black , S. Dixon , T. Gamble , D. Henry , P. Kerry , S. P. Littlefair , D. W. Lunney , T. Morris , J. Osborn , R. W. Wilson

Adaptive optics systems correct atmospheric turbulence in real time. Most adaptive optics systems used routinely correct in the near infrared, at wavelengths greater than 1 micron. MagAO- X is a new extreme adaptive optics (ExAO) instrument…

We investigate the limits of ground-based astrometry with adaptive optics using the core of the Galactic globular cluster M5. Adaptive optics systems provide near diffraction-limit imaging with the world's largest telescopes. The…

Astrophysics · Physics 2009-11-13 P. B. Cameron , M. C. Britton , S. R. Kulkarni

The next generation ground-based extremely large telescopes (ELTs) present incredible opportunities to discover and characterize diverse planetary systems, even potentially habitable worlds. Adaptive-optics assisted thermal-IR (3-14 micron)…

Light scattering and aberrations limit optical microscopy in biological tissue, which motivates the development of adaptive optics techniques. Here, we develop a method for adaptive optics with reflected light and deep neural networks…

Optics · Physics 2020-07-28 Ivan Vishniakou , Johannes D. Seelig

The highest three-dimensional (3D) resolution possible in in-vivo retinal imaging is achieved by combining optical coherence tomography (OCT) and adaptive optics (AO). However, this combination brings important limitations, such as small…

Medical Physics · Physics 2020-10-21 Jules Scholler , Kassandra Groux , Kate Grieve , Claude Boccara , Pedro Mecê

The workhorse instruments of the 8-10m class observatories have become their multi-object spectrographs (MOS), providing comprehensive follow-up to both ground-based and space-borne imaging. With the advent of deeper imaging surveys from,…