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Wide-field slitless spectroscopy (WFSS) is a powerful tool for studying large samples of galaxies across cosmic times. With the arrival of JWST, and its NIRCAM grism mode, slitless spectroscopy can reach a medium spectral resolution of…

Astrophysics of Galaxies · Physics 2025-10-10 A. Lola Danhaive , Sandro Tacchella

Stage-IV dark energy wide-field surveys, such as the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), will observe an unprecedented number density of galaxies. As a result, the majority of imaged galaxies will visually…

Instrumentation and Methods for Astrophysics · Physics 2026-03-13 Ismael Mendoza , Derek Hansen , Runjing Liu , Zhe Zhao , Ziteng Pang , Axel Guinot , Camille Avestruz , Jeffrey Regier , the LSST Dark Energy Science Collaboration

Non-line-of-sight (NLOS) imaging relies on collecting light that is rendered incoherent from the multiple scattering events and is then post-processed to provide an estimate of the hidden scene. Here we employ coherent phase control of the…

Optics · Physics 2019-12-25 Ilya Starshynov , Omair Ghafur , James Fitches , Daniele Faccio

Single particle imaging (SPI) is a promising method for native structure determination which has undergone a fast progress with the development of X-ray Free-Electron Lasers. Large amounts of data are collected during SPI experiments,…

Image and Video Processing · Electrical Eng. & Systems 2021-04-23 Alexandr Ignatenko , Dameli Assalauova , Sergey A. Bobkov , Luca Gelisio , Anton B. Teslyuk , Viacheslav A. Ilyin , Ivan A. Vartanyants

We present a catalogue of 22755 objects with slitless, optical, Hubble Space Telescope (HST) spectroscopy from the Grism Lens-Amplified Survey from Space (GLASS). The data cover $\sim$220 sq. arcmin to 7-orbit ($\sim$10 ks) depth in 20…

Astrophysics of Galaxies · Physics 2020-02-12 L. E. Abramson , G. B. Brammer , K. B. Schmidt , T. Treu , T. Morishita , X. Wang , B. Vulcani , A. Henry

We describe a new algorithm for the "perfect" extraction of one-dimensional spectra from two-dimensional (2D) digital images of optical fiber spectrographs, based on accurate 2D forward modeling of the raw pixel data. The algorithm is…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 Adam S. Bolton , David J. Schlegel

We use a dense, complete redshift survey, the Smithsonian Hectospec Lensing Survey (SHELS), covering a 4 square degree region of a deep imaging survey, the Deep Lens Survey (DLS), to study the optical spectral properties of Wide-field…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Ho Seong Hwang , Margaret J. Geller , Michael J. Kurtz , Ian P. Dell'Antonio , Daniel G. Fabricant

Over the past decade, object detection has advanced significantly, with the YOLO (You Only Look Once) family of models transforming the landscape of real-time vision applications through unified, end-to-end detection frameworks. From…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Manikanta Kotthapalli , Deepika Ravipati , Reshma Bhatia

Lensless optical imaging eliminates the need for refractive optics, enabling compact and low-cost cameras with a large field-of-view, supporting point-of-care diagnostics and industrial monitoring. Practical deployments, however, remain…

We present YOSO (You Only Shot Once), a single-frame phase retrieval framework for digital in-line holographic microscopy (DIHM) in which supervised deep learning is used to numerically generate an additional hologram corresponding to…

How can we discover objects we did not know existed within the large datasets that now abound in astronomy? We present an outlier detection algorithm that we developed, based on an unsupervised Random Forest. We test the algorithm on more…

Astrophysics of Galaxies · Physics 2017-01-11 Dalya Baron , Dovi Poznanski

The increasing penetration rate of new energy in the power system has put forward higher requirements for the operation and maintenance of substations and transmission lines. Using the Unmanned Aerial Vehicles (UAV) to identify foreign…

Image and Video Processing · Electrical Eng. & Systems 2025-07-16 He Zhichao , Shen Xiangyu , Zhang Yong , Xie Nan

With the advancement of aerospace technology and the increasing demands of military applications, the development of low false-alarm and high-precision infrared small target detection algorithms has emerged as a key focus of research…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Taoran Yue , Xiaojin Lu , Jiaxi Cai , Yuanping Chen , Shibing Chu

This paper presents a comprehensive overview of the Ultralytics YOLO(You Only Look Once) family of object detectors, focusing the architectural evolution, benchmarking, deployment perspectives, and future challenges. The review begins with…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Ranjan Sapkota , Manoj Karkee

Detecting objects from aerial images poses significant challenges due to the following factors: 1) Aerial images typically have very large sizes, generally with millions or even hundreds of millions of pixels, while computational resources…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Chenguang Liu , Guangshuai Gao , Ziyue Huang , Zhenghui Hu , Qingjie Liu , Yunhong Wang

We aim at providing the object detection community with an efficient and performant object detector, termed YOLO-MS. The core design is based on a series of investigations on how multi-branch features of the basic block and convolutions…

Computer Vision and Pattern Recognition · Computer Science 2025-02-21 Yuming Chen , Xinbin Yuan , Jiabao Wang , Ruiqi Wu , Xiang Li , Qibin Hou , Ming-Ming Cheng

YOLOv11 is the latest iteration in the You Only Look Once (YOLO) series of real-time object detectors, introducing novel architectural modules to improve feature extraction and small-object detection. In this paper, we present a detailed…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Nikhileswara Rao Sulake

When presented with one or a few photos of a previously unseen object, humans can instantly recognize it in different scenes. Although the human brain mechanism behind this phenomenon is still not fully understood, this work introduces a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Junyu Hao , Jianheng Liu , Yongjia Zhao , Zuofan Chen , Qi Sun , Jinlong Chen , Jianguo Wei , Minghao Yang

This paper focuses on face stylization with a single artistic target. Existing works for this task often fail to retain the source content while achieving geometry variation. Here, we present a novel StyO model, ie. Stylize the face in only…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Bonan Li , Zicheng Zhang , Xuecheng Nie , Congying Han , Yinhan Hu , Xinmin Qiu , Tiande Guo

Gravitationally lensed (GL) quasars are brighter than their unlensed counterparts and produce images with distinctive morphological signatures. Past searches and target selection algorithms, in particular the Sloan Quasar Lens Search…

Astrophysics of Galaxies · Physics 2015-06-23 Adriano Agnello , Brandon C. Kelly , Tommaso Treu , Philip J. Marshall
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