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The use of well-disentangled representations offers many advantages for downstream tasks, e.g. an increased sample efficiency, or better interpretability. However, the quality of disentangled interpretations is often highly dependent on the…

Machine Learning · Computer Science 2023-03-03 Benjamin Estermann , Roger Wattenhofer

Vignetting is an inherited imaging phenomenon within almost all optical systems, showing as a radial intensity darkening toward the corners of an image. Since it is a common effect for photography and usually appears as a slight intensity…

Image and Video Processing · Electrical Eng. & Systems 2021-05-13 Binyu Tian , Felix Juefei-Xu , Qing Guo , Xiaofei Xie , Xiaohong Li , Yang Liu

The recent proposal of a new alignment solution for X-ray tomography, Virtual alignment method (VAM) allowed a more accurate method to remove the possible errors that limit the resolution and clarity of the reconstructed image. In the field…

Image and Video Processing · Electrical Eng. & Systems 2020-10-28 Kyungtaek Jun , Seokhwan Yoon , Jae-Hong Lim , SeungJoon Noh

Recent object detectors have achieved impressive accuracy in identifying objects seen during training. However, real-world deployment often introduces novel and unexpected objects, referred to as out-of-distribution (OOD) objects, posing…

Machine Learning · Computer Science 2025-11-20 Quang-Huy Nguyen , Jin Peng Zhou , Zhenzhen Liu , Khanh-Huyen Bui , Kilian Q. Weinberger , Wei-Lun Chao , Dung D. Le

The recent works on Video Object Segmentation achieved remarkable results by matching dense semantic and instance-level features between the current and previous frames for long-time propagation. Nevertheless, global feature matching…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Volodymyr Fedynyak , Yaroslav Romanus , Bohdan Hlovatskyi , Bohdan Sydor , Oles Dobosevych , Igor Babin , Roman Riazantsev

Recently, the fundamental problem of unsupervised domain adaptation (UDA) on 3D point clouds has been motivated by a wide variety of applications in robotics, virtual reality, and scene understanding, to name a few. The point cloud data…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Siddharth Katageri , Arkadipta De , Chaitanya Devaguptapu , VSSV Prasad , Charu Sharma , Manohar Kaul

In controlled blasting operations, accurately detecting densely distributed tiny boreholes from far-view imagery is critical for operational safety and efficiency. However, existing detection methods often struggle due to small object…

Computer Vision and Pattern Recognition · Computer Science 2025-05-09 Xuesong Liu , Tianyu Hao , Emmett J. Ientilucci

Anomaly localization is an important problem in computer vision which involves localizing anomalous regions within images with applications in industrial inspection, surveillance, and medical imaging. This task is challenging due to the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-20 Shashanka Venkataramanan , Kuan-Chuan Peng , Rajat Vikram Singh , Abhijit Mahalanobis

Astronomical telescopes suffer from a tradeoff between field of view (FoV) and image resolution: increasing the FoV leads to an optical field that is under-sampled by the science camera. This work presents a novel computational imaging…

Instrumentation and Methods for Astrophysics · Physics 2025-08-07 Robin Swanson , Esther Y. H. Lin , Masen Lamb , Suresh Sivanandam , Kiriakos N. Kutulakos

The static stress needed to depin a 2D edge dislocation, the lower dynamic stress needed to keep it moving, its velocity and displacement vector profile are calculated from first principles. We use a simplified discrete model whose far…

Materials Science · Physics 2009-11-10 A. Carpio , L. L. Bonilla

Electron backscatter diffraction (EBSD) patterns can exhibit Kikuchi bands with inverted contrast due to anomalous absorption. This can be observed, for example, on samples with nanoscale topography, in case of a low tilt backscattering…

Materials Science · Physics 2026-01-22 Grzegorz Cios , Aimo Winkelmann , Gert Nolze , Tomasz Tokarski , Benedykt R. Jany , Piotr Bała

We evaluate the effect of mechanical exfoliation of van der Waals materials on crystallographic orientations of the resulting flakes. Flakes originating from a single crystal of graphite, whose orientation is confirmed using STM, are…

Mesoscale and Nanoscale Physics · Physics 2020-06-18 Y. Kolumbus , A. Zalic , N. Fardian-Melamed , Z. Barkay , D. Rotem , D. Porath , H. Steinberg

Digital Subtraction Angiography (DSA) is one of the gold standards in vascular disease diagnosing. With the help of contrast agent, time-resolved 2D DSA images deliver comprehensive insights into blood flow information and can be utilized…

Image and Video Processing · Electrical Eng. & Systems 2024-05-20 Zhentao Liu , Huangxuan Zhao , Wenhui Qin , Zhenghong Zhou , Xinggang Wang , Wenping Wang , Xiaochun Lai , Chuansheng Zheng , Dinggang Shen , Zhiming Cui

The ability to efficiently detect the software protections used is at a prime to facilitate the selection and application of adequate deob-fuscation techniques. We present a novel approach that combines semantic reasoning techniques with…

Computation and Language · Computer Science 2019-11-19 Ramtine Tofighi-Shirazi , Irina Mariuca Asavoae , Philippe Elbaz-Vincent

Ptychography, a coherent diffraction imaging technique, has become an indispensable tool in materials characterization, biological imaging, and nanostructure analysis due to its capability for high-resolution, lensless reconstruction of…

Discrete diffusion models have recently shown great promise for modeling complex discrete data, with masked diffusion models (MDMs) offering a compelling trade-off between quality and generation speed. MDMs denoise by progressively…

Machine Learning · Computer Science 2026-04-15 Tianyu Xie , Shuchen Xue , Zijin Feng , Tianyang Hu , Jiacheng Sun , Zhenguo Li , Cheng Zhang

We apply variational autoencoders (VAE) to X-ray diffraction (XRD) data analysis on both simulated and experimental thin-film data. We show that crystal structure representations learned by a VAE reveal latent information, such as the…

Materials Science · Physics 2021-04-12 Lars Banko , Phillip M. Maffettone , Dennis Naujoks , Daniel Olds , Alfred Ludwig

Inferring transient molecular structural dynamics from diffraction data is an ambiguous task that often requires different approximation methods. In this paper we present an attempt to tackle this problem using machine learning. While most…

Chemical Physics · Physics 2023-08-09 Hazem Daoud , Dhruv Sirohi , Endri Mjeku , John Feng , Saeed Oghbaey , R. J. Dwayne Miller

The O vacancy (Ov) formation energy, $E_\textrm{Ov}$, is an important property of a metal-oxide, governing its performance in applications such as fuel cells or heterogeneous catalysis. These defects are routinely studied with density…

Materials Science · Physics 2022-04-01 Benjamin Xu Shi , Venkat Kapil , Andrea Zen , Ji Chen , Ali Alavi , Angelos Michaelides

Feature descriptors, such as SIFT and ORB, are well-known for their robustness to illumination changes, which has made them popular for feature-based VSLAM\@. However, in degraded imaging conditions such as low light, low texture, blur and…

Robotics · Computer Science 2016-04-05 Hatem Alismail , Brett Browning , Simon Lucey
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