Results 31 to 40 of about 107,385 (182)

Using the medical image processing package, ImageJ, for astronomy

open access: yes, 2006
15 pages, 6 figures; Published in ...
West, Jennifer L., Cameron, Ian D.
openaire   +2 more sources

The Infrared Imaging Spectrograph (IRIS) for TMT: Data Reduction System [PDF]

open access: yes, 2016
IRIS (InfraRed Imaging Spectrograph) is the diffraction-limited first light instrument for the Thirty Meter Telescope (TMT) that consists of a near-infrared (0.84 to 2.4 $\mu$m) imager and integral field spectrograph (IFS). The IFS makes use of a lenslet
Chapin, Edward L.   +17 more
core   +2 more sources

A Simple but Powerful Method to Reduce Background Noise in Celestial Gamma-Ray Images

open access: yesThe Astrophysical Journal
Reducing background noise is essential for clear data analysis and signal detection. In this study, we introduce a novel denoising algorithm tailored for gamma-ray astronomical data, utilizing local density sampling techniques.
H. Hedayati Kh., M. Soor, F. Akhondi
doaj   +1 more source

Data Provenance and Management in Radio Astronomy: A Stream Computing Approach [PDF]

open access: yes, 2011
New approaches for data provenance and data management (DPDM) are required for mega science projects like the Square Kilometer Array, characterized by extremely large data volume and intense data rates, therefore demanding innovative and highly efficient
Biem, Alain   +4 more
core   +2 more sources

Long-Term Continuous Double Station Observation of Faint Meteor Showers

open access: yesSensors, 2016
Meteor detection and analysis is an essential topic in the field of astronomy. In this paper, a high-sensitivity and high-time-resolution imaging device for the detection of faint meteoric events is presented. The instrument is based on a fast CCD camera
Stanislav Vítek   +3 more
doaj   +1 more source

Parametric high resolution techniques for radio astronomical imaging

open access: yes, 2008
The increased sensitivity of future radio telescopes will result in requirements for higher dynamic range within the image as well as better resolution and immunity to interference.
Ben-David, Chen, Leshem, Amir
core   +2 more sources

Benchmarking Dimensionality Reduction Methods for High-dimensional ALMA Image Cubes

open access: yesThe Astronomical Journal
High-dimensional astronomical data cubes provide a wealth of spectral and structural information that can be used to study astrophysical and chemical processes.
Haley N. Scolati   +3 more
doaj   +1 more source

WFST Astrometric Calibration. I. Modeling Global Geometric Distortion with Zernike Polynomials

open access: yesThe Astronomical Journal
Accurate modeling of geometric distortion (GD) is essential for precise astrometric calibration in wide-field imaging surveys. We present a self-calibration method based on Zernike polynomials, applied to imaging data from the Wide Field Survey Telescope
Chao Yang   +23 more
doaj   +1 more source

Infrared Astronomical Satellite (IRAS) Scientific Data Analysis System [PDF]

open access: yes, 1980
The Jet Propulsion Laboratory's Scientific Data Analysis System will process Infrared Astronomical Satellite data and produce a catalog of perhaps a million infrared sources in the sky, as well as other vital information for astronomical ...
Duxbury, John H., Soifer, B. T.
core   +1 more source

Influence of the Lossy Compression JPEG2000 standard on the Deformation of PSF

open access: yesActa Polytechnica, 2011
This paper deals with the influence of lossy compression algorithms on the deformation of the point spread function (PSF) of imaging systems in astronomy.
P. Páta
doaj  

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