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We present sagui, a modular framework for the analysis of multi-band imaging data in spatially resolved galaxies, with synergies to integral-field spectroscopy (IFS). Building on the spectro-spatial paradigm introduced by capivara for IFS…

Deep learning has revolutionized medical and biological imaging, particularly in segmentation tasks. However, segmenting biological cells remains challenging due to the high variability and complexity of cell shapes. Addressing this…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Tianhao Zhang , Heather J. McCourty , Berardo M. Sanchez-Tafolla , Anton Nikolaev , Lyudmila S. Mihaylova

Recent advances in image and video generation raise hopes that these models possess world modeling capabilities, the ability to generate realistic, physically plausible videos. This could revolutionize applications in robotics, autonomous…

Face morphing attack detection (MAD) is one of the most challenging tasks in the field of face recognition nowadays. In this work, we introduce a novel deep learning strategy for a single image face morphing detection, which implies the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-08 Iurii Medvedev , Farhad Shadmand , Nuno Gonçalves

We address the problem of morphological classification of galaxies from the Galaxy Zoo DECaLS dataset using classical machine learning techniques. Our approach employs a dimensionality reduction method followed by a classical classifier to…

Astrophysics of Galaxies · Physics 2025-04-23 Vasyl Semenov , Vitalii Tymchyshyn , Volodymyr Bezguba , Maksym Tsizh , Andrii Khlevniuk

Advances in deep learning recognition have led to accurate object detection with 2D images. However, these 2D perception methods are insufficient for complete 3D world information. Concurrently, advanced 3D shape estimation approaches focus…

Computer Vision and Pattern Recognition · Computer Science 2021-09-15 Taeyeop Lee , Byeong-Uk Lee , Myungchul Kim , In So Kweon

Large surveys using modern telescopes are producing images that are increasing exponentially in size and quality. Identifying objects in the generated images by visual recognition is time-consuming and labor-intensive, while classifying the…

Instrumentation and Methods for Astrophysics · Physics 2021-09-28 Baoqiang Lao , Tao An , Ailing Wang , Zhijun Xu , Shaoguang Guo , Weijia Lv , Xiaocong Wu , Yingkang Zhang

Machine learning techniques have been increasingly useful in astronomical applications over the last few years, for example in the morphological classification of galaxies. Convolutional neural networks have proven to be highly effective in…

Instrumentation and Methods for Astrophysics · Physics 2018-02-07 V. Lukic , M. Brüggen , J. K. Banfield , O. I. Wong , L. Rudnick , R. P. Norris , B. Simmons

Deep networks for image classification often rely more on texture information than object shape. While efforts have been made to make deep-models shape-aware, it is often difficult to make such models simple, interpretable, or rooted in…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Rajhans Singh , Ankita Shukla , Pavan Turaga

The Great Observatories Origins Deep Survey (GOODS) is designed to gather the best and deepest multiwavelength data for studying the formation and evolution of galaxies and active galactic nuclei, the distribution of dark and luminous…

Astrophysics · Physics 2019-08-14 Mark Dickinson , Mauro Giavalisco

We propose an end-to-end learning framework for segmenting generic objects in both images and videos. Given a novel image or video, our approach produces a pixel-level mask for all "object-like" regions---even for object categories never…

Computer Vision and Pattern Recognition · Computer Science 2018-12-19 Bo Xiong , Suyog Dutt Jain , Kristen Grauman

The morphologies of astronomical sources are highly complex, making it essential not only to classify the identified sources into their predefined categories but also to determine the sources that are most similar to a given query source.…

Image and Video Processing · Electrical Eng. & Systems 2024-10-14 Steven Ndungu , Trienko Grobler , Stefan J. Wijnholds , George Azzopardi

Mathematical morphology is a theory and technique to collect features like geometric and topological structures in digital images. Given a target image, determining suitable morphological operations and structuring elements is a cumbersome…

Computer Vision and Pattern Recognition · Computer Science 2019-09-05 Yucong Shen , Xin Zhong , Frank Y. Shih

This paper uses clustering algorithms to introduce a shape framework for deformable objects. Until now, the shape detection of the deformable objects has faced several challenges: 1) unable to form a unified framework for multiple shapes;…

Robotics · Computer Science 2023-12-19 Fangqing Chen

We extend a recently developed galaxy morphology classification method, Quantitative Multiwavelength Morphology (QMM), to connect galaxy morphologies to their underlying physical properties. The traditional classification of galaxies…

Astrophysics of Galaxies · Physics 2015-05-18 D. B. Wijesinghe , A. M. Hopkins , B. C. Kelly , N. Welikala , A. J. Connolly

We use automated surface photometry and pattern classification techniques to morphologically classify galaxies. The two-dimensional light distribution of a galaxy is reconstructed using Fourier series fits to azimuthal profiles computed in…

Astrophysics · Physics 2009-11-07 S. C. Odewahn , S. H. Cohen , R. A. Windhorst , N. S. Philip

We present a Bayesian machine learning architecture that combines a physically motivated parametrization and an analytic error model for the likelihood with a deep generative model providing a powerful data-driven prior for complex signals.…

Instrumentation and Methods for Astrophysics · Physics 2019-12-10 Francois Lanusse , Peter Melchior , Fred Moolekamp

We introduce MORPH, a modality-agnostic, autoregressive foundation model for partial differential equations (PDEs). MORPH is built on a convolutional vision transformer backbone that seamlessly handles heterogeneous spatiotemporal datasets…

Computer Vision and Pattern Recognition · Computer Science 2026-01-30 Mahindra Singh Rautela , Alexander Most , Siddharth Mansingh , Bradley C. Love , Alexander Scheinker , Diane Oyen , Nathan Debardeleben , Earl Lawrence , Ayan Biswas

Galaxy morphology offers significant insights into the evolutionary pathways and underlying physics of galaxies. As astronomical data grows with surveys such as Euclid and Vera C. Rubin , there is a need for tools to classify and analyze…

Instrumentation and Methods for Astrophysics · Physics 2024-01-18 I. Kolesnikov , V. M. Sampaio , R. R. de Carvalho , C. Conselice , S. B. Rembold , C. L. Mendes , R. R. Rosa

One of the most important properties of a galaxy is the total stellar mass, or equivalently the stellar mass-to-light ratio (M/L). It is not directly observable, but can be estimated from stellar population synthesis. Currently, a galaxy's…

Astrophysics of Galaxies · Physics 2019-04-24 Wouter Dobbels , Serge Krier , Stephan Pirson , Sébastien Viaene , Gert De Geyter , Samir Salim , Maarten Baes