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This publication presents an investigation of the performance of different analytical electron ptychography methods for low-dose imaging. In particular, benchmarking is performed for two model-objects, monolayer MoS$_2$ and apoferritin, by…

Applied Physics · Physics 2025-05-20 Hoelen L. Lalandec Robert , Max Leo Leidl , Knut Müller-Caspary , Jo Verbeeck

(Abridged) We consider the scientific case for a large aperture (10-12m class) optical spectroscopic survey telescope with a field of view comparable to that of LSST. Such a facility could enable transformational progress in several areas…

Instrumentation and Methods for Astrophysics · Physics 2017-01-10 Richard S. Ellis , Joss Bland-Hawthorn , Malcolm Bremer , Jarle Brinchmann , Luigi Guzzo , Johan Richard , Hans-Walter Rix , Eline Tolstoy , Darach Watson

We provide a mathematical analysis of and a numerical framework for full-field optical coherence elastography, which has unique features including micron-scale resolution, real-time processing, and non-invasive imaging. We develop a novel…

Optimization and Control · Mathematics 2014-05-21 Habib Ammari , Elie Bretin , Pierre Millien , Laurent Seppecher , Jin-Keun Seo

We introduce a diffusion-based approach for generating privacy-preserving digital twins of multi-room indoor environments from depth images only. Central to our approach is a novel Multi-view Overlapped Scene Alignment with Implicit…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Zhixuan Liu , Haokun Zhu , Rui Chen , Jonathan Francis , Soonmin Hwang , Ji Zhang , Jean Oh

The topics of Artificial intelligence (AI) and especially Machine Learning (ML) are increasingly making their way into educational curricula. To facilitate the access for students, a variety of platforms, visual tools, and digital games are…

Computers and Society · Computer Science 2024-11-11 Hendrik Krone , Pierre Haritz , Thomas Liebig

Mobile robots have become indispensable for exploring hostile environments, such as in space or disaster relief scenarios, but often remain limited to teleoperation by a human operator. This restricts the deployment scale and requires…

This paper describes the methodology currently being implemented in the EIS pipeline for analysing optical/infrared multi-colour data. The aim is to identify different classes of objects as well as possible undesirable features associated…

Electroencephalography (EEG) emotion recognition plays a crucial role in human-computer interaction, particularly in healthcare and neuroscience. While supervised learning has been widely used, its reliance on manual annotations introduces…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Hanqi Wang , Yang Liu , Peng Ye , Liang Song

Extremely large telescopes (ELTs) are considered worldwide to be one of the highest priorities in ground-based astronomy. The European Southern Observatory (ESO) is developing an ELT that will have a 39 m main mirror and will be the largest…

Instrumentation and Methods for Astrophysics · Physics 2023-12-08 Paolo Padovani , Michele Cirasuolo

The Multi-Object Search (MOS) problem involves navigating to a sequence of locations to maximize the likelihood of finding target objects while minimizing travel costs. In this paper, we introduce a novel approach to the MOS problem, called…

Robotics · Computer Science 2025-09-08 Daniel Choi , Angus Fung , Haitong Wang , Aaron Hao Tan

Satellite imagery solutions are widely used to study and monitor different regions of the Earth. However, a single satellite image can cover only a limited area. In cases where a larger area of interest is studied, several images must be…

Artificial Intelligence · Computer Science 2023-12-08 Manuel Combarro Simón , Pierre Talbot , Grégoire Danoy , Jedrzej Musial , Mohammed Alswaitti , Pascal Bouvry

Ultrathin flat meta-optics have shown great promise for holography in recent years. However, most of the reported meta-optical holograms rely on only phase modulation and neglect the amplitude information. Modulation of both amplitude and…

The hard X-ray instruments at the Linac Coherent Light Source are in the design phase for upgrades that will take full advantage of the high repetition rates that will become available with LCLS-II-HE. The current X-ray Correlation…

Accelerator Physics · Physics 2023-08-16 Aashwin Mishra , Nicholas Brennan , Tianyu Huang , Jason Jaquith , Hasan Yavas , Matthew Seaberg

This article presents an extended author's version based on our previous work, where we introduced the Multiple Overlapping Tiles (MOT) method for palm vein image enhancement. To better reflect the specific operations involved, we rename…

Image and Video Processing · Electrical Eng. & Systems 2025-03-04 Kaveen Perera , Fouad Khelifi , Ammar Belatreche

The Durham Microoptics Programme was established to develop key components to be used for integral field spectrographs for upcoming instrumentation projects, focussing on currently existing telescopes as well as on the next generation of…

Astrophysics · Physics 2009-11-13 J. Schmoll , C. M. Dubbeldam , D. J. Robertson , J. Yao

Infrared and visible image fusion aims to integrate comprehensive information from multiple sources to achieve superior performances on various practical tasks, such as detection, over that of a single modality. However, most existing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Yiming Sun , Bing Cao , Pengfei Zhu , Qinghua Hu

We propose a novel scene-segmentation-based exposure compensation method for multi-exposure image fusion (MEF) based tone mapping. The aim of MEF-based tone mapping is to display high dynamic range (HDR) images on devices with limited…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Yuma Kinoshita , Hitoshi Kiya

Fourier optics, the principle of using Fourier Transformation to understand the functionalities of optical elements, lies at the heart of modern optics, and has been widely applied to optical information processing, imaging, holography etc.…

Project ILATO focuses on Improving Limited Angle computed Tomography by Optical data integration in order to enhance image quality and shorten acquisition times in X-ray based industrial quality inspection. Limited angle computed tomography…

Computational Geometry · Computer Science 2014-04-29 Andreas Beyer , Hubert Mara , Susanne Krömker