Results 11 to 20 of about 1,474,036 (268)

Frame combination techniques for ultra-high-contrast imaging [PDF]

SPIE Proceedings, 2008
9 pages, 4 figures, SPIE conference ...
Carson, Joseph C., Feldt, Markus, Desidera, Silvano, Langlois, Maud, Joos, Franco, Mouillet, David, Beuzit, Jean-Luc   +6 more
openaire   +2 more sources

Data-reduction techniques for high-contrast imaging polarimetry [PDF]

Astronomy & Astrophysics, 2011
9 pages, 12 Figures, Accepted for publication in A& ...
Canovas Cabrera, H., Rodenhuis, M., Jeffers, S.V., Min, M., Keller, C.U.   +4 more
openaire   +3 more sources

Angular Differential Imaging: A Powerful High‐Contrast Imaging Technique [PDF]

The Astrophysical Journal, 2006
Angular differential imaging is a high-contrast imaging technique that reduces quasi-static speckle noise and facilitates the detection of nearby companions. A sequence of images is acquired with an altitude/azimuth telescope while the instrument field derotator is switched off.
Marois, C, Lafreniere, D, Doyon, R, Macintosh, B, Nadeau, D   +4 more
openaire   +2 more sources

Temporal contrast reduction techniques for high dynamic-range temporal contrast measurement

Optics Express, 2019
A single-shot characterization of the temporal contrast of a petawatt laser pulse with a high dynamic-range, is important not only for improving conditions of the petawatt laser facility itself, but also for various high-intensity laser physics experiments, which is still a difficult problem. In this study, a new idea for improving the dynamic-range of
Xiong, Shen, Peng, Wang, Jingxin, Zhu, Zhe, Si, Yuxia, Zhao, Jun, Liu, Ruxin, Li   +6 more
openaire   +2 more sources

High contrast microwave tomography using topology optimization techniques

Journal of Computational and Applied Mathematics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eddie Wadbro, Martin Berggren
openaire   +2 more sources

A High-precision Technique to Correct for Residual Atmospheric Dispersion in High-contrast Imaging Systems

Publications of the Astronomical Society of the Pacific, 2016
8 Pages, 10 figures, accepted to ...
Pathak, P., Guyon, O., Jovanovic, N., Lozi, J., Martinache, Frantz, Minowa, Y., Kudo, T., Takami, H., Hayano, Y., Narita, N.   +9 more
openaire   +3 more sources

Recurrence Quantification Analysis as a Post-processing Technique in Adaptive Optics High-contrast Imaging [PDF]

The Astrophysical Journal, 2018
Abstract In this work we explore the possibility of using recurrence quantification analysis (RQA) in astronomical high-contrast imaging to statistically discriminate the signal of faint objects from speckle noise. To this end, we tested RQA on a sequence of high frame rate (1 kHz) images acquired with the SHARK-VIS forerunner at the ...
M. Stangalini, G. Li Causi, F. Pedichini, S. Antoniucci, M. Mattioli, J. Christou, G. Consolini, D. Hope, S. M. Jefferies, R. Piazzesi, V. Testa   +10 more
openaire   +2 more sources

Minimizing contrast media dose in CT pulmonary angiography with high-pitch technique

The British Journal of Radiology, 2020
Objectives: To perform CT pulmonary angiography (CTPA) using a minimal amount of iodinated contrast media. Methods: 47 patients (25 females) with mean age 69 years (range 41–82 years) referred for contrast-enhanced chest CT were prospectively ...
Hanan Alobeidi, Muhammed Alshamari, Jonas Widell, Tomas Eriksson, Mats Lidén   +4 more
openaire   +2 more sources

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani, Rachel K. Peterson, Avani D. Rao, Laurie J. McKenzie, Ahmed Magdy Elmotayam, Leslie Chang, Michael Roth, Susan L. McGovern   +7 more
wiley   +1 more source

Evaluation of high-quality image reconstruction techniques applied to high-resolution Z-contrast imaging

Ultramicroscopy, 2017
High-quality image reconstruction techniques allow the generation of high pixel density images from a set of low-resolution micrographs. In general, these techniques consist of two main steps, namely, accurate registration, and formulation of an appropriate forward image model via some restoration method.
Barcena González, Guillermo, Guerrero Lebrero, María de la Paz, Guerrero Vázquez, Elisa, Yañez Escolano, Andrés, Fernández de los Reyes, Daniel, González Robledo, David, Galindo Riaño, Pedro Luis   +6 more
openaire   +3 more sources