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Related papers: Stacking of SKA data: comparing uv-plane and image…

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Focus stacking is widely used in micro, macro, and landscape photography to reconstruct all-in-focus images from multiple frames obtained with focus bracketing, that is, with shallow depth of field and different focus planes. Existing deep…

Computer Vision and Pattern Recognition · Computer Science 2023-11-30 Alexandre Araujo , Jean Ponce , Julien Mairal

Background and objective: Stacking is an ensemble machine learning method that averages predictions from multiple other algorithms, such as generalized linear models and regression trees. An implementation of stacking, called super…

Machine Learning · Statistics 2019-08-01 Alexander P. Keil , Daniel Westreich , Jessie K Edwards , Stephen R Cole

Digital tracking detects faint solar system bodies by stacking many images along hypothesized orbits, revealing objects that are undetectable in every individual exposure. Previous searches have been restricted to small areas and short time…

Earth and Planetary Astrophysics · Physics 2025-10-01 Alex Geringer-Sameth , Nathan Golovich , Keita Iwabuchi

Planning is hard. The use of subgoals can make planning more tractable, but selecting these subgoals is computationally costly. What algorithms might enable us to reap the benefits of planning using subgoals while minimizing the…

Artificial Intelligence · Computer Science 2021-08-05 Felix J Binder , Marcelo M Mattar , David Kirsh , Judith E Fan

Mapping molecular line emission beyond the bright low-J CO transitions is still challenging in extragalactic studies, even with the latest generation of (sub-)mm interferometers, such as ALMA and NOEMA. We summarise and test a spectral…

In the coming decade, astronomical surveys of the sky will generate tens of terabytes of images and detect hundreds of millions of sources every night. The study of these sources will involve computation challenges such as anomaly detection…

Distributed, Parallel, and Cluster Computing · Computer Science 2015-05-20 Keith Wiley , Andrew Connolly , Jeff Gardner , Simon Krughof , Magdalena Balazinska , Bill Howe , YongChul Kwon , YingYi Bu

Physical intuition is pivotal for intelligent agents to perform complex tasks. In this paper we investigate the passive acquisition of an intuitive understanding of physical principles as well as the active utilisation of this intuition in…

Computer Vision and Pattern Recognition · Computer Science 2018-07-09 Oliver Groth , Fabian B. Fuchs , Ingmar Posner , Andrea Vedaldi

With the current development of multiprocessor systems, strive for computing data on such processor have also increased exponentially. If the multi core processors are not fully utilized, then even though we have the computing power the…

Cryptography and Security · Computer Science 2009-12-08 Samir B. Patel , Shrikant N. Pradhan , Saumitra U. Ambegaokar

The advent of large aperture arrays, such as the ones currently under construction for the SKA project, allows for observing the Universe in the radio-spectrum at unprecedented resolution and sensitivity. To process the enormous amounts of…

Instrumentation and Methods for Astrophysics · Physics 2025-07-31 S. Wang , S. Mignot , S. Prunet , L. Di Mascolo , M. Spinelli , A. Ferrari

Many imaging tasks require global information about all pixels in an image. Conventional bottom-up classification networks globalize information by decreasing resolution; features are pooled and downsampled into a single output. But for…

Computer Vision and Pattern Recognition · Computer Science 2018-04-30 Sohil Shah , Pallabi Ghosh , Larry S Davis , Tom Goldstein

Karabo is a versatile Python-based software framework simplifying research with radio astronomy data. It bundles existing software packages into a coherent whole to improve the ease of use of its components. Karabo includes useful…

In this paper, we develop an efficient retrospective deep learning method called stacked U-Nets with self-assisted priors to address the problem of rigid motion artifacts in MRI. The proposed work exploits the usage of additional knowledge…

Image and Video Processing · Electrical Eng. & Systems 2021-11-15 Mohammed A. Al-masni , Seul Lee , Jaeuk Yi , Sewook Kim , Sung-Min Gho , Young Hun Choi , Dong-Hyun Kim

Next-generation telescopes will bring groundbreaking discoveries but they will also present new technological challenges. The Square Kilometre Array Observatory (SKAO) will be one of the most demanding scientific infrastructures, with a…

Instrumentation and Methods for Astrophysics · Physics 2025-03-21 I. Labadie-García , J. Garrido , L. Verdes-Montenegro , M. Á. Mendoza , M. Parra-Royón , S. Sánchez-Expósito , R. Ianjamasimanana

I consider the question posed to me by the scientific organisers of the conference, "Are the modern computer simulations a substitute for physical models? The SKA case." I briefly consider the current knowledge of computer simulations and…

Instrumentation and Methods for Astrophysics · Physics 2012-09-18 Steven J. Tingay

In many data classification problems, there is no linear relationship between an explanatory and the dependent variables. Instead, there may be ranges of the input variable for which the observed outcome is signficantly more or less likely.…

Machine Learning · Computer Science 2016-04-13 Mallory Sheth , Roy Welsch , Natasha Markuzon

Distributed calibration based on consensus optimization is a computationally efficient method to calibrate large radio interferometers such as LOFAR and SKA. Calibrating along multiple directions in the sky and removing the bright…

Instrumentation and Methods for Astrophysics · Physics 2021-10-29 Sarod Yatawatta

The advent of large aperture arrays, such as the currently under construction Square Kilometer Array (SKA), allows for observing the universe in the radio-spectrum at unprecedented resolution and sensitivity. However, these telescopes…

Instrumentation and Methods for Astrophysics · Physics 2024-12-04 S. Wang , S. Prunet , S. Mignot , A. Ferrari

The Dynamic Vision Sensor (DVS) has many attributes that allow it to be well suited to the task for UAV Detection. This paper is the first to look at exploiting the features of an Event Camera solely for Drone Detection while combining it…

Image and Video Processing · Electrical Eng. & Systems 2019-04-30 Paul Kirkland

Unsupervised learning has grown in popularity because of the difficulty of collecting annotated data and the development of modern frameworks that allow us to learn from unlabeled data. Existing studies, however, either disregard variations…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Yi-Zhan Xu , Chih-Yao Chen , Cheng-Te Li

In this work, we propose a framework to store and manage spatial data, which includes new efficient algorithms to perform operations accepting as input a raster dataset and a vector dataset. More concretely, we present algorithms for…

Data Structures and Algorithms · Computer Science 2020-04-07 Fernando Silva-Coira , José R. Paramá , Susana Ladra , Juan R. López , Gilberto Gutiérrez