English
Related papers

Related papers: Blind Deconvolution in Astronomy: How Does a Stand…

200 papers

Foundation models pre-trained on large-scale natural image datasets offer a powerful paradigm for medical image segmentation. However, effectively transferring their learned representations for precise clinical applications remains a…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Haoyue Li , Yifan Gao , Feng Yuan , Xiaosong Wang , Xin Gao

Image denoising methods must effectively model, implicitly or explicitly, the vast diversity of patterns and textures that occur in natural images. This is challenging, even for modern methods that leverage deep neural networks trained to…

Computer Vision and Pattern Recognition · Computer Science 2019-12-11 Zhihao Xia , Ayan Chakrabarti

We present the first public release of our generic neural network training algorithm, called SkyNet. This efficient and robust machine learning tool is able to train large and deep feed-forward neural networks, including autoencoders, for…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 Philip Graff , Farhan Feroz , Michael P. Hobson , Anthony N. Lasenby

Unsupervised anomaly detection plays a pivotal role in industrial defect inspection and medical image analysis, with most methods relying on the reconstruction framework. However, these methods may suffer from over-generalization, enabling…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Wei Luo , Peng Xing , Yunkang Cao , Haiming Yao , Weiming Shen , Zechao Li

Retinal vessel segmentation is an essential step for fundus image analysis. With the recent advances of deep learning technologies, many convolutional neural networks have been applied in this field, including the successful U-Net. In this…

Image and Video Processing · Electrical Eng. & Systems 2019-11-11 Weilin Fu , Katharina Breininger , Zhaoya Pan , Andreas Maier

Context. Ongoing and upcoming large spectroscopic surveys are drastically increasing the number of observed quasar spectra, requiring the development of fast and accurate automated methods to estimate spectral continua. Aims. This study…

Lensless imaging stands out as a promising alternative to conventional lens-based systems, particularly in scenarios demanding ultracompact form factors and cost-effective architectures. However, such systems are fundamentally governed by…

Image and Video Processing · Electrical Eng. & Systems 2025-05-06 Jiesong Bai , Yuhao Yin , Yihang Dong , Xiaofeng Zhang , Chi-Man Pun , Xuhang Chen

The projection of planar MRI data onto a spherical surface is equivalent to a nonlinear image transformation that retains global anatomical information. By incorporating this image transformation process in our proposed spherical…

Quantitative Methods · Quantitative Biology 2023-08-15 Zhenyu Yang , Kyle Lafata , Eugene Vaios , Zongsheng Hu , Trey Mullikin , Fang-Fang Yin , Chunhao Wang

One of the major limitations of adaptive optics (AO) corrected image post-processing is the lack of knowledge on the system point spread function (PSF). The PSF is not always available as a direct imaging on isolated point like objects such…

Instrumentation and Methods for Astrophysics · Physics 2020-07-22 Romain Fétick , Laurent Mugnier , Thierry Fusco , Benoit Neichel

We propose a non-stationary iterated network Tikhonov (iNETT) method for the solution of ill-posed inverse problems. The iNETT employs deep neural networks to build a data-driven regularizer, and it avoids the difficult task of estimating…

Numerical Analysis · Mathematics 2023-04-05 Davide Bianchi , Guanghao Lai , Wenbin Li

We extend the blindspot model for self-supervised denoising to handle Poisson-Gaussian noise and introduce an improved training scheme that avoids hyperparameters and adapts the denoiser to the test data. Self-supervised models for…

Image and Video Processing · Electrical Eng. & Systems 2020-11-20 Wesley Khademi , Sonia Rao , Clare Minnerath , Guy Hagen , Jonathan Ventura

Semi-numerical simulations are the leading candidates for evolving reionization on cosmological scales. These semi-numerical models are efficient in generating large-scale maps of the 21cm signal, but they are too slow to enable inference…

Cosmology and Nongalactic Astrophysics · Physics 2023-03-22 Mosima P. Masipa , Sultan Hassan , Mario G. Santos , Gabriella Contardo , Kyunghyun Cho

The process of annotating relevant data in the field of digital microscopy can be both time-consuming and especially expensive due to the required technical skills and human-expert knowledge. Consequently, large amounts of microscopic image…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Asmaa Haja , Eric Brouwer , Lambert Schomaker

Stellar population measurements in integral field unit surveys are often limited by low signal-to-noise ratios (S/N) in low-surface-brightness spaxels. Using controlled synthetic experiments, we test whether deep-learning-based denoising…

Astrophysics of Galaxies · Physics 2026-05-07 Suk Kim , Joon Hyeop Lee , Soo-Chang Rey

The quality of microscopy images often suffers from optical aberrations. These aberrations and their associated point spread functions have to be quantitatively estimated to restore aberrated images. The recent state-of-the-art method…

Image and Video Processing · Electrical Eng. & Systems 2022-11-22 Kira Vinogradova , Eugene W. Myers

In this work, we present Blind-Spot Guided Diffusion, a novel self-supervised framework for real-world image denoising. Our approach addresses two major challenges: the limitations of blind-spot networks (BSNs), which often sacrifice local…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Shen Cheng , Haipeng Li , Haibin Huang , Xiaohong Liu , Shuaicheng Liu

We investigate the performance of fully convolutional networks to simulate the motion and interaction of surface waves in open and closed complex geometries. We focus on a U-Net architecture and analyse how well it generalises to geometric…

Machine Learning · Computer Science 2020-12-02 Mario Lino , Chris Cantwell , Stathi Fotiadis , Eduardo Pignatelli , Anil Bharath

In the neutral hydrogen (HI) intensity mapping (IM) survey, the foreground contamination on the cosmological signals is extremely severe, and the systematic effects caused by radio telescopes themselves further aggravate the difficulties in…

Instrumentation and Methods for Astrophysics · Physics 2022-07-28 Shulei Ni , Yichao Li , Li-Yang Gao , Xin Zhang

Ultrasound imaging is generally employed for real-time investigation of internal anatomy of the human body for disease identification. Delineation of the anatomical boundary of organs and pathological lesions is quite challenging due to the…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Sumanth Nandamuri , Debarghya China , Pabitra Mitra , Debdoot Sheet

We design a novel network architecture for learning discriminative image models that are employed to efficiently tackle the problem of grayscale and color image denoising. Based on the proposed architecture, we introduce two different…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Stamatios Lefkimmiatis