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We present a new few-parameter phenomenological model of light curves of eclipsing binaries and stars with transiting planets that is able to fit the observed light curves with the accuracy better than 1\% of their amplitudes. The model can…

太阳与恒星天体物理 · 物理学 2015-02-27 Zdeněk Mikulášek , Miloslav Zejda , Theodor Pribulla , Martin Vaňko , Shen-Bang Qian , Li-Ying Zhu

Blind image deblurring plays a very important role in many vision and multimedia applications. Most existing works tend to introduce complex priors to estimate the sharp image structures for blur kernel estimation. However, it has been…

计算机视觉与模式识别 · 计算机科学 2018-08-01 Risheng Liu , Yi He , Shichao Cheng , Xin Fan , Zhongxuan Luo

In the smooth mass distribution model, the critical curve represents a line with magnification divergence on the image plane in a strong gravitational lensing system. Considering the microlensing effects caused by discrete masses, the…

星系天体物理 · 物理学 2023-08-29 Xuliu Yang , Xuechun Chen , Wenwen Zheng , Yu Luo

Four ongoing microlensing experiments have produced important new results but also big puzzles, the major one being that the expected classes of lenses cannot account for the observed distribution of time scales. I discuss future…

天体物理学 · 物理学 2007-05-23 Andrew Gould

We resolve the multiple images of the binary-lens microlensing event ASASSN-22av using the GRAVITY instrument of the Very Large Telescope Interferometer (VLTI). The light curves show weak binary-lens perturbations, complicating the…

Low-overhead visual place recognition (VPR) is a highly active research topic. Mobile robotics applications often operate under low-end hardware, and even more hardware capable systems can still benefit from freeing up onboard system…

计算机视觉与模式识别 · 计算机科学 2022-10-04 Bruno Arcanjo , Bruno Ferrarini , Michael Milford , Klaus D. McDonald-Maier , Shoaib Ehsan

We present the analysis of OGLE-2016-BLG-0613, for which the lensing light curve appears to be that of a typical binary-lens event with two caustic spikes but with a discontinuous feature on the trough between the spikes. We find that the…

Visual Place Recognition (VPR) is the process of recognising a previously visited place using visual information, often under varying appearance conditions and viewpoint changes and with computational constraints. VPR is related to the…

计算机视觉与模式识别 · 计算机科学 2021-10-05 Mubariz Zaffar , Sourav Garg , Michael Milford , Julian Kooij , David Flynn , Klaus McDonald-Maier , Shoaib Ehsan

The analysis of optical images of galaxy-galaxy strong gravitational lensing systems can provide important information about the distribution of dark matter at small scales. However, the modeling and statistical analysis of these images is…

宇宙学与河外天体物理 · 物理学 2020-11-30 Adam Coogan , Konstantin Karchev , Christoph Weniger

Modeling textual or visual information with vector representations trained from large language or visual datasets has been successfully explored in recent years. However, tasks such as visual question answering require combining these…

计算机视觉与模式识别 · 计算机科学 2016-09-27 Akira Fukui , Dong Huk Park , Daylen Yang , Anna Rohrbach , Trevor Darrell , Marcus Rohrbach

Applications of the phase space approach to the calculation of the microlensing autocorrelation function are presented. The continuous propagation equation for a random star field with a Gaussian velocity distribution is solved in the…

天体物理学 · 物理学 2009-11-11 Artem V. Tuntsov , Geraint F. Lewis

Bias in computer vision models remains a significant challenge, often resulting in unfair, unreliable, and non-generalizable AI systems. Although research into bias mitigation has intensified, progress continues to be hindered by fragmented…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Ioannis Sarridis , Christos Koutlis , Symeon Papadopoulos , Christos Diou

The explosive growth of open-source model repositories has created a Model Jungle, where checkpoints are frequently shared without adequate documentation or metadata. While weight-space learning offers a pathway to identify and analyze…

机器学习 · 计算机科学 2026-05-25 Eunwoo Heo , Kyeongkook Seo , Jaejun Yoo

Accurate real-time simulation of lens optics remains challenging due to the computational expense of full ray tracing and the limitations of existing approximations. The commonly used pinhole model and thin-lens model ignore many optical…

图形学 · 计算机科学 2026-05-06 Yang Chen , Xiaochun Tong , Afet Abzar , Leo Hanxu , Matthew Avolio , Toshiya Hachisuka

CBS is a new program for binary system light curve analysis, it generates synthetic light curves for a binary system, accounting for eclipses, tidal distortion, limb darkening, gravity darkening and reflection; it is also possible to…

天体物理学 · 物理学 2007-05-23 Loretta Solmi , Marcello Galli

The mutual orbital alignment in multiple planetary systems is an important parameter for understanding their formation. There are a number of elaborate techniques to determine the alignment parameters using photometric or spectroscopic…

地球与行星天体物理 · 物理学 2021-12-29 Holger M. Müller , Panagiotis Ioannidis , Jürgen H. M. M. Schmitt

An extra-solar planet can be detected by microlensing because the planet can perturb the smooth lensing light curve created by the primary lens. However, it was shown by Gaudi that a subset of binary-source events can produce light curves…

天体物理学 · 物理学 2009-11-06 Cheongho Han

I present a new algorithm, CALCLENS, for efficiently computing weak gravitational lensing shear signals from large N-body light cone simulations over a curved sky. This new algorithm properly accounts for the sky curvature and boundary…

宇宙学与河外天体物理 · 物理学 2012-10-15 Matthew R. Becker

Recently, biclustering is one of the hot topics in bioinformatics and takes the attention of authors from several different disciplines. Hence, many different methodologies from a variety of disciplines are proposed as a solution to the…

人机交互 · 计算机科学 2021-11-26 Melih Sozdinler

The light curves observed in microlensing events due to binary lenses span an extremely wide variety of forms, characterised by U-shaped caustic crossings and/or additional smoother peaks. However, all peaks of the binary-lens light curve…

地球与行星天体物理 · 物理学 2015-06-23 Christine Liebig , Giuseppe D'Ago , Valerio Bozza , Martin Dominik