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We developed a Python based framework for astronomical image processing and analysis. Astronomical image loading, normalizing, stacking, and filtering processes represent visible range images from grayscale. Besides, the blending process…

Instrumentation and Methods for Astrophysics · Physics 2024-10-10 Tanmoy Bhowmik , MD Fardin Islam , Kazi Nusrat Tasneem , Rantideb Roy , Rownok Shahariar

During the 20th Century, aerial surveys captured hundreds of millions of high-resolution photographs of the earth's surface. These images, the precursors to modern satellite imagery, represent an extraordinary visual record of the…

We present the first results of a new data analysis pipeline for processing extragalactic AKARI/IRC images. The main improvements of the pipeline over the standard analysis are the removal of Earth shine and image distortion correction. We…

Astrophysics of Galaxies · Physics 2016-10-06 H. R. Davidge , S. Serjeant , C. P. Pearson

Reverse engineering of music mixes aims to uncover how dry source signals are processed and combined to produce a final mix. We extend the prior works to reflect the compositional nature of mixing and search for a graph of audio processors.…

We present a novel approach to the minor planet linking problem. Our heliocentric transformation-and-propagation algorithm clusters tracklets at common epochs, allowing for the efficient identification of tracklets that represent the same…

Earth and Planetary Astrophysics · Physics 2018-05-08 Matthew J. Holman , Matthew J. Payne , Paul Blankley , Ryan Janssen , Scott Kuindersma

The world astronomical image archives represent huge opportunities to time-domain astronomy sciences and other hot topics such as space defense, and astronomical observatories should improve this wealth and make it more accessible in the…

Instrumentation and Methods for Astrophysics · Physics 2019-12-18 Ovidiu Vaduvescu , Lucian Curelaru , Marcel Popescu

With the growing amount of astronomical data, there is an increasing need for automated data processing pipelines, which can extract scientific information from observation data without human interventions. A critical aspect of these…

Instrumentation and Methods for Astrophysics · Physics 2024-05-07 Peng Jia , Yu Song , Jiameng Lv , Runyu Ning

An efficient algorithm is required to extract moving objects (asteroids, satellites, and space debris) from enormous data with advances in observational instruments. We have developed an algorithm, tracee, to swiftly detect points aligned…

Instrumentation and Methods for Astrophysics · Physics 2022-04-29 Ryou Ohsawa

One of the most important changes in observational astronomy of the 21st Century is a rapid shift from classical object-by-object observations to extensive automatic surveys. As CCD detectors are getting better and their prices are getting…

Astrophysics · Physics 2009-11-13 Andrej Prsa , Tomaz Zwitter

The detrending algorithms which are widely used to reduce the impact of stellar variability on space-based transit surveys are ill-suited for estimating the parameters of confirmed planets, as they unavoidably alter the transit signal. We…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 A. Alapini , S. Aigrain

Asteroid photometry has three major applications: providing clues about asteroid surface physical properties and compositions, facilitating photometric corrections, and helping design and plan ground-based and spacecraft observations. The…

Earth and Planetary Astrophysics · Physics 2016-08-31 Jian-Yang Li , Paul Helfenstein , Bonnie J. Buratti , Driss Takir , Beth Ellen Clark

Time-resolved photometry of asteroids can be used for shape and spin reconstruction. If the number of measurements per asteroid is not sufficient to create a model, the whole data set can be used to reconstruct the distribution of shape…

Earth and Planetary Astrophysics · Physics 2020-05-14 Mikko Kaasalainen , Josef Durech

We present FORECAST, a new flexible and adaptable software package that performs forward modeling of the output of any cosmological hydrodynamical simulations to create a wide range of realistic synthetic astronomical images. With…

This technical report investigates the potential of Convolutional Neural Networks to post-process images from primary atomization. Three tasks are investigated. First, the detection and segmentation of liquid droplets in degraded optical…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Geoffroy Chaussonnet , Christian Lieber , Yan Yikang , Wenda Gu , Andreas Bartschat , Markus Reischl , Rainer Koch , Ralf Mikut , Hans-Jörg Bauer

We present a novel method for extracting moving objects from TESS data using machine learning. Our approach uses two stacked 3D U-Nets with skip connections, which we call a W-Net, to filter background and identify pixels containing moving…

Earth and Planetary Astrophysics · Physics 2026-05-13 Brian P. Powell , Jorge Martinez-Palomera , Amy Tuson , Christina Hedges , Jessie Dotson , Jordan Caraballo-Vega

Neural Radiance Fields (NeRF) have achieved impressive results in 3D reconstruction and novel view generation. A significant challenge within NeRF involves editing reconstructed 3D scenes, such as object removal, which demands consistency…

Computer Vision and Pattern Recognition · Computer Science 2024-07-04 Zhihao Guo , Peng Wang

Data mining is about obtaining new knowledge from existing datasets. However, the data in the existing datasets can be scattered, noisy, and even incomplete. Although lots of effort is spent on developing or fine-tuning data mining models…

Machine Learning · Computer Science 2019-06-21 Canchen Li

The survey of the nearby space and continuous monitoring of the Near Earth Objects (NEOs) and especially Near Earth Asteroids (NEAs) are essential for the future of our planet and should represent a priority for our solar system research…

Casually captured Neural Radiance Fields (NeRFs) suffer from artifacts such as floaters or flawed geometry when rendered outside the camera trajectory. Existing evaluation protocols often do not capture these effects, since they usually…

Computer Vision and Pattern Recognition · Computer Science 2023-10-19 Frederik Warburg , Ethan Weber , Matthew Tancik , Aleksander Holynski , Angjoo Kanazawa

Near-Earth asteroids (NEAs) in the 1-100 meter size range are estimated to be $\sim$1,000 times more numerous than the $\sim$15,000 currently-catalogued NEAs, most of which are in the 0.5-10 kilometer size range. Impacts from 10-100 meter…