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Overhead line inspection greatly benefits from defect recognition using visible light imagery. Addressing the limitations of existing feature extraction techniques and the heavy data dependency of deep learning approaches, this paper…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Weixi Wang , Xichen Zhong , Xin Li , Sizhe Li , Xun Ma

Image anomaly detection plays a vital role in applications such as industrial quality inspection and medical imaging, where it directly contributes to improving product quality and system reliability. However, existing methods often…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Zekang Weng , Jinjin Shi , Jinwei Wang , Zeming Han

Anomaly detection using a network-based approach is one of the most efficient ways to identify abnormal events such as fraud, security breaches, and system faults in a variety of applied domains. While most of the earlier works address the…

Artificial Intelligence · Computer Science 2025-01-22 Hossein Rafieizadeh , Hadi Zare , Mohsen Ghassemi Parsa , Hadi Davardoust , Meshkat Shariat Bagheri

Anomaly detection (such as telecom fraud detection and medical image detection) has attracted the increasing attention of people. The complex interaction between multiple entities widely exists in the network, which can reflect specific…

Machine Learning · Computer Science 2024-06-10 Xu Yuan , Na Zhou , Shuo Yu , Huafei Huang , Zhikui Chen , Feng Xia

Within a large database G containing graphs with labeled nodes and directed, multi-edges; how can we detect the anomalous graphs? Most existing work are designed for plain (unlabeled) and/or simple (unweighted) graphs. We introduce…

Databases · Computer Science 2022-05-03 Hung T. Nguyen , Pierre J. Liang , Leman Akoglu

Feature caching has emerged as an effective strategy to accelerate diffusion transformer (DiT) sampling through temporal feature reuse. It is a challenging problem since (1) Progressive error accumulation from cached blocks significantly…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Junxiang Qiu , Lin Liu , Shuo Wang , Jinda Lu , Kezhou Chen , Yanbin Hao

We propose and experimentally demonstrate an efficient image decomposition in the Laguerre-Gaussian (LG) domain. By developing an advanced computing method, the sampling points are much fewer than those in the existing methods, which can…

Image and Video Processing · Electrical Eng. & Systems 2020-05-19 Jiantao Ma , Dan Wei , Haocheng Yang , Yong Zhang , Min Xiao

Industrial surface defect detection often suffers from limited defect samples, severe long-tailed distributions, and difficulties in accurately localizing subtle defects under complex backgrounds. To address these challenges, this paper…

Artificial Intelligence · Computer Science 2026-04-22 Shuo Feng , Runlin Zhou , Yuyang Li , Guangcan Liu

Clothing segmentation and fine-grained attribute recognition are challenging tasks at the crossing of computer vision and fashion, which segment the entire ensemble clothing instances as well as recognize detailed attributes of the clothing…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Hao Tian , Yu Cao , P. Y. Mok

Targeting at depicting land covers with pixel-wise semantic categories, semantic segmentation in remote sensing images needs to portray diverse distributions over vast geographical locations, which is difficult to be achieved by the…

Image and Video Processing · Electrical Eng. & Systems 2022-10-05 Kunping Yang , Xin-Yi Tong , Gui-Song Xia , Weiming Shen , Liangpei Zhang

We present an automated vision-based system for defect detection and classification of laser power meter sensor coatings. Our approach addresses the critical challenge of identifying coating defects such as thermal damage and scratches that…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Dongqi Zheng , Wenjin Fu , Guangzong Chen

Material properties strongly depend on the nature and concentration of defects. Characterizing these features may require nano- to atomic-scale resolution to establish structure-property relationships. 4D-STEM, a technique where diffraction…

Materials Science · Physics 2023-05-03 Stephanie M. Ribet , Colin Ophus , Roberto dos Reis , Vinayak P. Dravid

Ultra-fine-grained image recognition (UFGIR) categorizes objects with extremely small differences between classes, such as distinguishing between cultivars within the same species, as opposed to species-level classification in fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Edwin Arkel Rios , Femiloye Oyerinde , Min-Chun Hu , Bo-Cheng Lai

Textile pattern generation (TPG) aims to synthesize fine-grained textile pattern images based on given clothing images. Although previous studies have not explicitly investigated TPG, existing image-to-image models appear to be natural…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Chenggong Hu , Yi Wang , Mengqi Xue , Haofei Zhang , Jie Song , Li Sun

Detecting objects under adverse weather and lighting conditions is crucial for the safe and continuous operation of an autonomous vehicle, and remains an unsolved problem. We present a Gated Differentiable Image Processing (GDIP) block, a…

Computer Vision and Pattern Recognition · Computer Science 2022-09-30 Sanket Kalwar , Dhruv Patel , Aakash Aanegola , Krishna Reddy Konda , Sourav Garg , K Madhava Krishna

Graph sampling theory extends the traditional sampling theory to graphs with topological structures. As a key part of the graph sampling theory, subset selection chooses nodes on graphs as samples to reconstruct the original signal. Due to…

Information Theory · Computer Science 2022-01-03 Zhengpin Li , Zheng Wei , Jian Wang , Yun Lin , Byonghyo Shim

Electron backscatter diffraction (EBSD) is a well-established method of characterisation for crystalline materials. This technique can rapidly acquire and index diffraction patterns to provide phase and orientation information about the…

Materials Science · Physics 2019-09-04 Alexander Foden , David Collins , Angus Wilkinson , Thomas Benjamin Britton

This paper presents a histogram based reversible data hiding (RDH) scheme, which divides image pixels into different cell frequency bands to sort them for data embedding. Data hiding is more efficient in lower cell frequency bands because…

Image and Video Processing · Electrical Eng. & Systems 2020-10-19 Ammar Mohammadi , Mansour Nakhkash

A $t$-spanner of an undirected $n$-vertex graph $G$ is a sparse subgraph $H$ of $G$ that preserves all pairwise distances between its vertices to within multiplicative factor $t$, also called the \emph{stretch}. We investigate the problem…

Data Structures and Algorithms · Computer Science 2026-01-29 Julia Chuzhoy , Merav Parter

In this paper, we propose a new paradigm of fault diagnosis in dynamic systems as an alternative to the well-established observer-based framework. The basic idea behind this work is to (i) formulate fault detection and isolation as…

Systems and Control · Electrical Eng. & Systems 2023-05-09 Steven X. Ding , Linlin Li , Tianyu Liu