English
Related papers

Related papers: Blacklight: A General-Relativistic Ray-Tracing and…

200 papers

Robot perception under low light or high dynamic range is usually improved downstream - via more robust feature extraction, image enhancement, or closed-loop exposure control. However, all of these approaches are limited by the image…

Robotics · Computer Science 2026-02-19 Yash Turkar , Shekoufeh Sadeghi , Karthik Dantu

Here we construct approximate analytical forms for the metric coefficients and fields representing the scalarized Einstein-Maxwell black holes with various couplings of the scalar field, once the parameters of the system are fixed. By…

General Relativity and Quantum Cosmology · Physics 2019-08-12 R. A. Konoplya , A. Zhidenko

We describe BlackHawk, a public C program for calculating the Hawking evaporation spectra of any black hole distribution. This program allows the users to compute the primary and secondary spectra of stable or long-lived particles generated…

General Relativity and Quantum Cosmology · Physics 2021-08-09 Alexandre Arbey , Jérémy Auffinger

Adverse lighting conditions, such as cast shadows and irregular illumination, pose significant challenges to computer vision systems by degrading visibility and color fidelity. Consequently, effective shadow removal and ALN are critical for…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Youngjin Oh , Junyoung Park , Junhyeong Kwon , Nam Ik Cho

The TRAIN code, developed in 1995 as a post-processor for second-order transport maps from MAD, has been used extensively at the LEP and the LHC to study self-consistent closed orbits, tunes and chromaticities of bunch trains under the…

Accelerator Physics · Physics 2026-04-21 Michi Hostettler , Xavier Buffat , Tobias Persson , Tatiana Pieloni , Jorg Wenninger

We present an open source Python library for simulating overlapping (i.e., blended) images of galaxies and performing self-consistent comparisons of detection and deblending algorithms based on a suite of metrics. The package, named…

Black materials play a critical role in applications such as image registration, camera calibration, stray light suppression, and visual design. Although many such materials appear similarly dark under diffuse illumination, their…

Optics · Physics 2026-01-09 Jiri Filip , Radomir Vavra

Weak gravitational lensing of distant galaxies can probe the total projected mass distribution of foreground gravitational structures on all scales and has been used successfully to map the projected mass distribution of rich intermediate…

Astrophysics · Physics 2007-05-23 L. Van Waerbeke , Y. Mellier

Representational Similarity Analysis (RSA) aims to explore similarities between neural activities of different stimuli. Classical RSA techniques employ the inverse of the covariance matrix to explore a linear model between the neural…

Neurons and Cognition · Quantitative Biology 2018-09-13 Xiaoliang Sheng , Muhammad Yousefnezhad , Tonglin Xu , Ning Yuan , Daoqiang Zhang

We present a neural-based model for relighting a half-body portrait image by simply referring to another portrait image with the desired lighting condition. Rather than following classical inverse rendering methodology that involves…

Graphics · Computer Science 2021-06-28 Guoxian Song , Tat-Jen Cham , Jianfei Cai , Jianmin Zheng

The Time Projection method is an ideal candidate to track low energy release particles. Large volumes can be readout by means of a moderate number of channels providing a complete 3D reconstruction of the charged tracks within the sensitive…

Instrumentation and Detectors · Physics 2019-01-15 G. Mazzitelli , E. Baracchini , G. Cavoto , E. Di Marco , M. Marafini , C. Mancini , D. Pinci , F. Renga , S. Tomassini

We present a generalization of the well known Next-Closure algorithm working on semilattices. We prove the correctness of the algorithm and apply it on the computation of the intents of a formal context.

Rings and Algebras · Mathematics 2012-01-19 Daniel Borchmann

Ray tracing is a technique for generating an image by tracing the path of light through pixels in an image plane and simulating the effects of high-quality global illumination at a heavy computational cost. Because of the high computation…

Graphics · Computer Science 2015-04-14 Yutong Qin , Jianbiao Lin , Xiang Huang

We present the new version v2.0 of the public code BlackHawk designed to compute the Hawking radiation of black holes, with both primary and hadronized spectra. This new version aims at opening an avenue toward physics beyond the Standard…

General Relativity and Quantum Cosmology · Physics 2021-10-27 Alexandre Arbey , Jérémy Auffinger

This work summarizes a program intended to unify three burgeoning branches of the high-energy astrophysics of relativistic jets: general relativistic magnetohydrodynamic (GRMHD) simulations of ever-increasing dynamical range, the…

Astrophysics of Galaxies · Physics 2018-05-15 Richard Anantua , Roger Blandford , Alexander Tchekhovskoy

Measuring relativistic reflection is an important tool to study the innermost regions of the an accreting black hole system. In the following we present a brief review on the different aspects contributing to the relativistic reflection.…

High Energy Astrophysical Phenomena · Physics 2018-10-23 Thomas Dauser , Javier A. García , Jörn Wilms

Numerical methods for radiative transfer play a key role in modern-day astrophysics and cosmology, including study of the inhomogeneous reionization process. In this context, ray tracing methods are well-regarded for accuracy but notorious…

Instrumentation and Methods for Astrophysics · Physics 2025-12-16 Nathan X. Marshak , Kathlynn Simotas , Zarija Lukić , Hyunbae Park , James Ahrens , Chris R. Johnson

EllipSect is a user-friendly analysis and measurement tool, implemented in Python, that operates on the imaging data together with the output of the widely used 2D surface-brightness fitting code GALFIT 3. It produces publication-quality…

Instrumentation and Methods for Astrophysics · Physics 2026-03-03 Christopher Añorve , Omar Ulises Reyes-Amador , Emmanuel Ríos-López , Diego de Ramón Tadeo , Omar López-Cruz

We present the results from combining machine learning with the profile likelihood fit procedure, using data from the Large Underground Xenon (LUX) dark matter experiment. This approach demonstrates reduction in computation time by a factor…

A new CUDA-C code for tracing orbits around non-charged black holes is presented. This code, named MALBEC, take advantage of the graphic processing units and the CUDA platform for tracking null and timelike test particles in Schwarzschild…

General Relativity and Quantum Cosmology · Physics 2018-06-13 G. D. Quiroga
‹ Prev 1 3 4 5 6 7 10 Next ›