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Ground-based high contrast exoplanet imaging requires state-of-the-art adaptive optics (AO) systems in order to detect extremely faint planets next to their brighter host stars. For such extreme AO systems (with high actuator count…

Earth and Planetary Astrophysics · Physics 2022-08-02 J. Fowler , Maaike A. M. Van Kooten , Rebecca Jensen-Clem

Deep Convolutional Neural Networks (CNN) have exhibited superior performance in many visual recognition tasks including image classification, object detection, and scene label- ing, due to their large learning capacity and resistance to…

Computer Vision and Pattern Recognition · Computer Science 2016-10-12 Miao Sun , Tony X. Han , Xun Xu , Ming-Chang Liu , Ahmad Khodayari-Rostamabad

Polarimetry is one of the keys to enhanced direct imaging of exoplanets. Not only does it deliver a differential observable providing extra contrast, but when coupled with spectroscopy, it also reveals valuable information on the…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 Guillaume Schworer , Peter G. Tuthill

The deep learning technique has been shown to be effectively addressed several image analysis tasks in the computer-aided diagnosis scheme for mammography. The training of an efficacious deep learning model requires large data with diverse…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Zheren Li , Zhiming Cui , Lichi Zhang , Sheng Wang , Chenjin Lei , Xi Ouyang , Dongdong Chen , Xiangyu Zhao , Yajia Gu , Zaiyi Liu , Chunling Liu , Dinggang Shen , Jie-Zhi Cheng

As the field of deep learning steadily transitions from the realm of academic research to practical application, the significance of self-supervised pretraining methods has become increasingly prominent. These methods, particularly in the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Toni Albert , Bjoern Eskofier , Dario Zanca

High-contrast imaging has afforded astronomers the opportunity to study light directly emitted by adolescent (tens of Myr) and ``proto" ($<$10Myr) planets still undergoing formation. Direct detection of these planets is enabled by empirical…

The combination of high-contrast imaging and medium to high spectral resolution spectroscopy offers new possibilities for the detection and characterization of exoplanets. The molecular mapping technique uses the difference between the…

Instrumentation and Methods for Astrophysics · Physics 2023-11-23 Alexis Bidot , David Mouillet , Alexis Carlotti

Recent developments established deep learning as an inevitable tool to boost the performance of dense matching and stereo estimation. On the downside, learning these networks requires a substantial amount of training data to be successful.…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Patrick Knöbelreiter , Christoph Vogel , Thomas Pock

Astronomical surveys and the growing involvement of amateur astronomers are producing more sky images than ever before, and this calls for automated processing methods that are accurate and robust. Detecting Deep Sky Objects -- such as…

Instrumentation and Methods for Astrophysics · Physics 2025-08-14 Olivier Parisot , Diogo Ramalho Fernandes

The Portable Adaptive Optics (PAO) is a low-cost and compact system, designed for 4-meter class telescopes that have no Adaptive Optics (AO), because of the physical space limitation at the Nasmyth or Cassegrain focus and the historically…

Instrumentation and Methods for Astrophysics · Physics 2025-12-15 Yongtian Zhu , Jiangpei Dou , Xi Zhang , Gang Zhao , Jing Guo , Leopoldo Infante

Chromosome recognition is an essential task in karyotyping, which plays a vital role in birth defect diagnosis and biomedical research. However, existing classification methods face significant challenges due to the inter-class similarity…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Ruijia Chang , Suncheng Xiang , Chengyu Zhou , Kui Su , Dahong Qian , Jun Wang

Ptychographic imaging confronts inherent challenges in applying deep learning for phase retrieval from diffraction patterns. Conventional neural architectures, both convolutional neural networks and Transformer-based methods, are optimized…

Direct imaging of exoplanets is a challenging task that involves distinguishing faint planetary signals from the overpowering glare of their host stars, often obscured by time-varying stellar noise known as "speckles". The predominant…

Earth and Planetary Astrophysics · Physics 2024-09-26 Chia-Lin Ko , Ewan S. Douglas , Justin Hom

During the past decade, deep neural networks have led to fast-paced progress and significant achievements in computer vision problems, for both academia and industry. Yet despite their success, state-of-the-art image classification…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Aristotelis Ballas , Christos Diou

In neutrino physics, analyses often depend on large simulated datasets, making it essential for models to generalise effectively to real-world detector data. Contrastive learning, a well-established technique in deep learning, offers a…

High Energy Physics - Experiment · Physics 2025-05-23 Alex Wilkinson , Radi Radev , Saul Alonso-Monsalve

Direct detection and detailed characterization of exoplanets using extreme adaptive optics (ExAO) is a key science goal of future extremely large telescopes (ELTs). However, wavefront errors will limit the sensitivity of this endeavor.…

Instrumentation and Methods for Astrophysics · Physics 2019-10-11 Benjamin L. Gerard , Christian Marois , Raphaël Galicher , Pierre Baudoz , Polychronis Patapis , Jonas Kühn

While deep learning has proven to be extremely successful at supervised classification tasks at the LHC and beyond, for practical applications, raw classification accuracy is often not the only consideration. One crucial issue is the…

High Energy Physics - Phenomenology · Physics 2020-10-02 Gregor Kasieczka , David Shih

Context. Spectroscopy of exoplanets is very challenging because of the high star-planet contrast. A technical difficulty in the design of imaging instruments is the noncommon path aberrations (NCPAs) between the adaptive optics (AO) sensing…

Instrumentation and Methods for Astrophysics · Physics 2019-11-06 Garima Singh , Raphaël Galicher , Pierre Baudoz , Olivier Dupuis , Manuel Ortiz , Axel Potier , Simone Thijs , Elsa Huby

Direct imaging of exoplanets is usually limited by quasi-static speckles. These uncorrected aberrations in a star's point spread function (PSF) obscure faint companions and limit the sensitivity of high-contrast imaging instruments. Most…

Instrumentation and Methods for Astrophysics · Physics 2021-05-05 William Thompson , Christian Marois

Continual learning seeks to maintain stable adaptation under non-stationary environments, yet this problem becomes particularly challenging in object detection, where most existing methods implicitly assume relatively balanced visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Rangya Zhang , Jiaping Xiao , Lu Bai , Yuhang Zhang , Mir Feroskhan