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Understanding lattice deformations is crucial in determining the properties of nanomaterials, which can become more prominent in future applications ranging from energy harvesting to electronic devices. However, it remains challenging to…

Convolutional neural network (CNN) based architectures, such as Mask R-CNN, constitute the state of the art in object detection and segmentation. Recently, these methods have been extended for model-based segmentation where the network…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Wenbo Dong , Volkan Isler

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

Object recognition and instance segmentation are fundamental skills in any robotic or autonomous system. Existing state-of-the-art methods are often unable to capture meaningful uncertainty in challenging or ambiguous scenes, and as such…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 YuXuan Liu , Nikhil Mishra , Pieter Abbeel , Xi Chen

Ultrasonic testing is a common Non-Destructive Inspection (NDI) method used in aerospace manufacturing. However, the complexity and size of the ultrasonic scans make it challenging to identify defects through visual inspection or machine…

Computer Vision and Pattern Recognition · Computer Science 2025-01-27 Ashiqur Rahman , Venkata Devesh Reddy Seethi , Austin Yunker , Zachary Kral , Rajkumar Kettimuthu , Hamed Alhoori

We analyze transmission electron microscopy (TEM) images of self-assembled quasicrystals, composed of binary systems of nanoparticles. We use an automated procedure that identifies the positions of dislocations and determines their…

Materials Science · Physics 2012-11-16 Liron Korkidi , Kobi Barkan , Ron Lifshitz

Four-dimensional scanning transmission electron microscopy (4D-STEM) enables mapping of diffraction information with nanometer-scale spatial resolution, offering detailed insight into local structure, orientation, and strain. However, as…

The lifetime and performance of any engineering component, from nanoscale sensors to macroscopic structures, are strongly influenced by fracture processes. Fracture itself is a highly localized event; originating at the atomic scale by bond…

Materials Science · Physics 2022-10-04 Dominik Steinberger , Inas Issa , Rachel Strobl , Peter J. Imrich , Daniel Kiener , Stefan Sandfeld

Object detection and instance segmentation are two fundamental computer vision tasks. They are closely correlated but their relations have not yet been fully explored in most previous work. This paper presents RDSNet, a novel deep…

Computer Vision and Pattern Recognition · Computer Science 2019-12-12 Shaoru Wang , Yongchao Gong , Junliang Xing , Lichao Huang , Chang Huang , Weiming Hu

Ridge detection is a classical tool to extract curvilinear features in image processing. As such, it has great promise in applications to material science problems; specifically, for trend filtering relatively stable atom-shaped objects in…

Applications · Statistics 2025-02-18 Yuchen Xu , Andrew M. Thomas , Peter A. Crozier , David S. Matteson

In this work, we try to address the challenging problem of dimple detection and segmentation in Titanium alloys using machine learning methods, especially neural networks. The images i.e. fractographs are obtained using a Scanning Election…

Image and Video Processing · Electrical Eng. & Systems 2020-10-02 Ashish Sinha , K S Suresh

Vascular structures in the retina contain important information for the detection and analysis of ocular diseases, including age-related macular degeneration, diabetic retinopathy and glaucoma. Commonly used modalities in diagnosis of these…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Erick O. Rodrigues , Aura Conci , Panos Liatsis

Although instance segmentation has made considerable advancement over recent years, it's still a challenge to design high accuracy algorithms with real-time performance. In this paper, we propose a real-time instance segmentation framework…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Wentao Du , Zhiyu Xiang , Shuya Chen , Chengyu Qiao , Yiman Chen , Tingming Bai

We present a conceptually simple, flexible, and general framework for object instance segmentation. Our approach efficiently detects objects in an image while simultaneously generating a high-quality segmentation mask for each instance. The…

Computer Vision and Pattern Recognition · Computer Science 2018-01-25 Kaiming He , Georgia Gkioxari , Piotr Dollár , Ross Girshick

This paper proposes a methodological approach with a transfer learning scheme for plastic waste bottle detection and instance segmentation using the \textit{mask region proposal convolutional neural network} (Mask R-CNN). Plastic bottles…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Punitha Jaikumar , Remy Vandaele , Varun Ojha

Competitive mechanisms contribute to image contrast from dislocations in annular dark field scanning transmission electron microscopy ADF STEM. A clear theoretical understanding of the mechanisms underlying the ADF STEM contrast is…

Materials Science · Physics 2020-05-27 E. Oveisi , M. C. Spadaro , E. Rotunno , V. Grillo , C. Hebert

Understanding the evolution of dislocation structures during plastic deformation is critical for predicting the mechanical performance of metallic materials. In this work, we applied in situ scanning electron microscopy/electron backscatter…

Materials Science · Physics 2026-03-24 Mikhail Lebyodkin , Maxim Gussev , Jamieson Brechtl , Tatiana Lebedkina

Automated pavement distress assessment requires more than image-level classification or coarse bounding box detection, demanding precise localization of thin, branching, and irregular cracks to achieve the geometric precision necessary for…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Logan Dewick , Bibesh Pyakurel , Kong Pheng Yang , Nazim Choudhury , M. G. Sarwar Murshed

Thin film oxides are a source of endless fascination for the materials scientist. These materials are highly flexible, can be integrated into almost limitless combinations, and exhibit many useful functionalities for device applications.…

Materials Science · Physics 2025-06-17 Steven R. Spurgeon

Referring image segmentation aims to segment the objects referred by a natural language expression. Previous methods usually focus on designing an implicit and recurrent feature interaction mechanism to fuse the visual-linguistic features…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Ya Jing , Tao Kong , Wei Wang , Liang Wang , Lei Li , Tieniu Tan