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Strong gravitational lensing is a powerful tool for investigating dark matter and dark energy properties. With the advent of large-scale sky surveys, we can discover strong lensing systems on an unprecedented scale, which requires efficient…

The China Space Station Telescope (CSST), slated to become China's largest space-based optical telescope in the coming decade, is designed to conduct wide-field sky surveys with high spatial resolution. Among its key observational modes,…

Instrumentation and Methods for Astrophysics · Physics 2025-11-18 Xin Zhang , Yue-dong Fang , Cheng-liang Wei , Guo-liang Li , Feng-shan Liu , Hang-xin Ji , Hao Tian , Nan Li , Xian-min Meng , Jian-jun Chen , Xia Wang , Rui Wang , Chao Liu , Zhong-wen Hu , Ran Li , Peng Wei , Jing Tang

Visual object recognition under situations in which the direct line-of-sight is blocked, such as when it is occluded around the corner, is of practical importance in a wide range of applications. With coherent illumination, the light…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Xin Lei , Liangyu He , Yixuan Tan , Ken Xingze Wang , Xinggang Wang , Yihan Du , Shanhui Fan , Zongfu Yu

Upcoming next-generation sky surveys will detect large number of faint objects with magnitudes larger than 25. When objects are crowded within a limited a field of view, blending becomes unavoidable. Blending leads to the omission of many…

Instrumentation and Methods for Astrophysics · Physics 2026-03-03 Yibo Yan , Chao Liu , Jiadong Li , Feng Wang

The slitless spectroscopic method employed by missions such as Euclid and the Chinese Space-station Survey Telescope (CSST) faces a fundamental challenge: spectroscopic redshifts derived from their data are susceptible to emission-line…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-18 Hui Peng , Yu Yu , Yiyang Guo , Yizhou Gu , Run Wen , Yunkun Han , Jipeng Sui , Hu Zou , Xiaohu Yang , Pengjie Zhang , Xian Zhong Zheng , Hong Guo , Yipeng Jing , Cheng Li , Hu Zhan , Gongbo Zhao

This paper studies the problem of Line Segment Detection (LSD) for the characterization of line geometry in images, with the aim of learning a domain-agnostic robust LSD model that works well for any natural images. With the focus of…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Zeran Ke , Bin Tan , Xianwei Zheng , Yujun Shen , Tianfu Wu , Nan Xue

The James Webb Space Telescope near-infrared camera (JWST NIRCam) has two 2.'2 $\times$ 2.'2 fields of view that are capable of either imaging or spectroscopic observations. Either of two $R \sim 1500$ grisms with orthogonal dispersion…

Object detection plays a crucial role in the field of computer vision by autonomously locating and identifying objects of interest. The You Only Look Once (YOLO) model is an effective single-shot detector. However, YOLO faces challenges in…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Yash Zambre , Ekdev Rajkitkul , Akshatha Mohan , Joshua Peeples

Slitless spectroscopy has long been considered as a complicated and confused technique. Nonetheless, with the advent of Hubble Space Telescope (HST) instruments characterized by a low sky background level and a high spatial resolution (most…

Astrophysics of Galaxies · Physics 2020-01-15 Mehdi Outini , Yannick Copin

The field of artificial intelligence is built on object detection techniques. YOU ONLY LOOK ONCE (YOLO) algorithm and it's more evolved versions are briefly described in this research survey. This survey is all about YOLO and convolution…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Viswanatha V , Chandana R K , Ramachandra A. C.

The Advanced Camera for Surveys (ACS) enables low resolution slitless spectroscopic imaging in the three channels. The most-used modes are grism imaging with the WFC and the HRC at a resolution of 40 and 24 A/pixel, respectively. In the far…

Astrophysics · Physics 2007-05-23 M. Kuemmel , S. S. Larsen , J. R. Walsh

The installation of the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope (HST) allows for the first time two-dimensional optical and ultraviolet slitless spectroscopy of faint objects from space. The STIS Parallel…

(Abridged) Galaxy clusters are a powerful probe of cosmological models. Next generation large-scale optical and infrared surveys will reach unprecedented depths over large areas and require highly complete and pure cluster catalogs, with a…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-23 Kirill Grishin , Simona Mei , Stéphane Ilic

This work is concerned with optical imaging in strongly diffusive environments. We consider a typical setting in optical coherence tomography where a sample is probed by a collection of wavefields produced by a laser and propagating through…

Optics · Physics 2024-12-10 Randy Bartels , Olivier Pinaud , Maxine Varughese

This paper proposes four new methods to decontaminate spectra of stars and galaxies resulting from slitless spectroscopy used in many space missions such as Euclid. These methods are based on two distinct approaches and simultaneously take…

Instrumentation and Methods for Astrophysics · Physics 2026-02-11 Mostafa Bella , Shahram Hosseini , Thierry Contini , Hicham Saylani

Low-surface-brightness galaxies (LSBGs), fainter members of the galaxy population, are thought to be numerous. However, due to their low surface brightness, the search for a wide-area sample of LSBGs is difficult, which in turn limits our…

Astrophysics of Galaxies · Physics 2023-12-27 Yongguang Xing , Zhenping Yi , Zengxu Liang , Hao Su , Wei Du , Min He , Meng Liu , Xiaoming Kong , Yude Bu , Hong Wu

From the nature of dark matter to the rate of expansion of our Universe, observations of distant galaxies distorted through strong gravitational lensing have the potential to answer some of the major open questions in astrophysics. Modeling…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-18 Siddharth Mishra-Sharma , Ge Yang

LSST will provide galaxy cluster catalogs up to z$\sim$1 that can be used to constrain cosmological models once their selection function is well-understood. We have applied the deep convolutional network YOLO for CLuster detection (YOLO-CL)…

We present YOLO, a new approach to object detection. Prior work on object detection repurposes classifiers to perform detection. Instead, we frame object detection as a regression problem to spatially separated bounding boxes and associated…

Computer Vision and Pattern Recognition · Computer Science 2016-05-11 Joseph Redmon , Santosh Divvala , Ross Girshick , Ali Farhadi