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The human visual system contains a hierarchical sequence of modules that take part in visual perception at different levels of abstraction, i.e., superordinate, basic, and subordinate levels. One important question is to identify the…

Neurons and Cognition · Quantitative Biology 2018-03-12 Matin N. Ashtiani , Saeed Reza Kheradpisheh , Timothée Masquelier , Mohammad Ganjtabesh

The spreading of attention has been proposed as a mechanism for how humans group features to segment objects. However, such a mechanism has not yet been implemented and tested in naturalistic images. Here, we leverage the feature maps from…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Hossein Adeli , Seoyoung Ahn , Nikolaus Kriegeskorte , Gregory Zelinsky

A goodness-of-fit test for the fitting of a parametric model to data obtained from a detector with finite resolution and limited acceptance is proposed. The parameters of the model are found by minimization of a statistic that is used for…

Data Analysis, Statistics and Probability · Physics 2015-03-17 N. D. Gagunashvili

Although Neural Radiance Fields (NeRFs) have markedly improved novel view synthesis, accurate uncertainty quantification in their image predictions remains an open problem. The prevailing methods for estimating uncertainty, including the…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Niki Amini-Naieni , Tomas Jakab , Andrea Vedaldi , Ronald Clark

Speckle interferometry is an established optical metrology tool for the characterization of rough objects. The raw phase, however, is impaired by the presence of phase singularities, making the unwrapping procedure ambiguous. In a Michelson…

Instrumentation and Detectors · Physics 2016-11-11 Klaus Mantel , Vanusch Nercissian

Cosmic Microwave Background (CMB) lensing is a powerful probe of the matter distribution in the Universe. The standard quadratic estimator, which is typically used to measure the lensing signal, is known to be suboptimal for low-noise…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-26 Benjamin Horowitz , Simone Ferraro , Blake D. Sherwin

Estimating 3D human texture from a single image is essential in graphics and vision. It requires learning a mapping function from input images of humans with diverse poses into the parametric (UV) space and reasonably hallucinating…

Computer Vision and Pattern Recognition · Computer Science 2023-03-08 Said Fahri Altindis , Adil Meric , Yusuf Dalva , Ugur Gudukbay , Aysegul Dundar

Actively tunable optical filters based on chalcogenide phase-change materials (PCMs) are an emerging technology with applications across chemical spectroscopy and thermal imaging. The refractive index of an embedded PCM thin film is…

Instrumentation and Detectors · Physics 2021-02-23 David Bombara , Calum Williams , Stephen Borg , Hyun Jung Kim

Despite their ability to represent highly expressive functions, deep learning models seem to find simple solutions that generalize surprisingly well. Spectral bias -- the tendency of neural networks to prioritize learning low frequency…

Machine Learning · Computer Science 2022-09-30 Sara Fridovich-Keil , Raphael Gontijo-Lopes , Rebecca Roelofs

Here, we present a concept based on the realization that a complex medium can be used as a simple interferometer. Changes in the wavefront of an incident coherent beam can be retrieved by analyzing changes in speckle patterns when the beam…

Optics · Physics 2016-10-07 KyungDuk Kim , HyeonSeung Yu , KyeoReh Lee , YongKeun Park

Reaching the sufficient sensitivity to detect primordial B-modes requires modern CMB polarisation experiments to rely on new technologies, necessary for the deployment of arrays thousands of detectors with a broad frequency coverage and…

Cosmology and Nongalactic Astrophysics · Physics 2021-03-17 Clara Vergès , Josquin Errard , Radek Stompor

While deep learning methods have achieved impressive success in many vision benchmarks, it remains difficult to understand and explain the representations and decisions of these models. Though vision models are typically trained on 2D…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Benjamin Beilharz , Thomas S. A. Wallis

Discrimination mitigation within machine learning (ML) models could be complicated because multiple factors may be interwoven hierarchically and historically. Yet few existing fairness measures can capture the discrimination level within ML…

Machine Learning · Computer Science 2025-05-20 Yijun Bian , Yujie Luo , Ping Xu

The 21-cm global signal is obscured by very bright galactic and extra galactic foreground emissions. Typical single-spectrum fit (SSF) based methods for foreground/signal separation can result in biased estimates of the cosmological signal…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-27 Yordan D. Ignatov , Jonathan R. Pritchard

By engineering and manipulating quantum entanglement between incoming photons and experimental apparatus, we construct single-photon detectors which cannot distinguish between photons of very different wavelengths. These color erasure…

Modern smartphones contain motion sensors, such as accelerometers and gyroscopes. These sensors have many useful applications; however, they can also be used to uniquely identify a phone by measuring anomalies in the signals, which are a…

Cryptography and Security · Computer Science 2015-03-09 Anupam Das , Nikita Borisov , Matthew Caesar

Visual error metrics play a fundamental role in the quantification of perceived image similarity. Most recently, use cases for them in real-time applications have emerged, such as content-adaptive shading and shading reuse to increase…

Graphics · Computer Science 2023-10-16 João Libório Cardoso , Bernhard Kerbl , Lei Yang , Yury Uralsky , Michael Wimmer

The correlated color temperature (CCT) and color rendering index (CRI) of artificial light sources are important because they have implications for human biology and professional applications. Although CCT information is generally available…

Image and Video Processing · Electrical Eng. & Systems 2026-02-25 Gianluca Hiss Garbim , Luis Carlos Mathias , André Massami Assakawa , Taufik Abrão

The analysis of meteor spectra (photographic, CCD or video recording) is complicated by the fact that spectra obtained with objective gratings are curved and have a nonlinear dispersion. In this paper it is shown that with a simple image…

Instrumentation and Methods for Astrophysics · Physics 2015-09-28 Martin Dubs , Peter Schlatter

Information visualization significantly enhances human perception by graphically representing complex data sets. The variety of visualization designs makes it challenging to efficiently evaluate all possible designs catering to users'…

Methodology · Statistics 2020-04-07 Xiaoning Kang , Xiaoyu Chen , Ran Jin , Hao Wu , Xinwei Deng