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The automatic detection of skin diseases via dermoscopic images can improve the efficiency in diagnosis and help doctors make more accurate judgments. However, conventional skin disease recognition systems may produce high confidence for…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Zhongzheng Huang , Tao Wang , Yuanzheng Cai , Lingyu Liang

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

Edge detection is typically viewed as a pixel-level classification problem mainly addressed by discriminative methods. Recently, generative edge detection methods, especially diffusion model based solutions, are initialized in the edge…

Computer Vision and Pattern Recognition · Computer Science 2024-10-07 Caixia Zhou , Yaping Huang , Mochu Xiang , Jiahui Ren , Haibin Ling , Jing Zhang

In this paper, we propose a machine vision algorithm for automatically detecting defects in patterned textures with the help of gradient space and its energy. Experiments on real fabric images with defects show that the proposed method can…

Computer Vision and Pattern Recognition · Computer Science 2014-03-11 V. Asha , N. U. Bhajantri , P. Nagabhushan

Anomaly detection is an important task for complex systems (e.g., industrial facilities, manufacturing, large-scale science experiments), where failures in a sub-system can lead to low yield, faulty products, or even damage to components.…

Machine Learning · Computer Science 2023-09-06 Ryan Humble , Zhe Zhang , Finn O'Shea , Eric Darve , Daniel Ratner

Detection of surface defects is one of the most important issues in the field of image processing and machine vision. In this article, a method for detecting surface defects based on energy changes in co-occurrence matrices is presented.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Nandara K. Krishnand , Akshakhi Kumar Pritoonka , Faeze Kiani

Visual quality inspection in high performance manufacturing can benefit from automation, due to cost savings and improved rigor. Deep learning techniques are the current state of the art for generic computer vision tasks like classification…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Ahmad Mohamad Mezher , Andrew E. Marble

Latent defect screening is challenged by extremely low failure rates, high-dimensional test data, and absence of labeled anomalies. We propose the first unsupervised anomaly detection framework incorporating a Diffusion Transformer. Raw…

Machine Learning · Computer Science 2026-05-27 Yuxuan Yin , Chen He , Todd Jacobs , Jialei He , Boxun Xu , Robert Jin , Peng Li

Semantic segmentation algorithms require access to well-annotated datasets captured under diverse illumination conditions to ensure consistent performance. However, poor visibility conditions at varying illumination conditions result in…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Pranjay Shyam , Antyanta Bangunharcana , Kuk-Jin Yoon , Kyung-Soo Kim

From a safety perspective, a machine learning method embedded in real-world applications is required to distinguish irregular situations. For this reason, there has been a growing interest in the anomaly detection (AD) task. Since we cannot…

Machine Learning · Computer Science 2021-04-21 JuneKyu Park , Jeong-Hyeon Moon , Namhyuk Ahn , Kyung-Ah Sohn

This paper introduces a novel anomaly detection framework that combines the robust statistical principles of density-estimation-based anomaly detection methods with the representation-learning capabilities of deep learning models. The…

Machine Learning · Computer Science 2024-08-15 Joseph Gallego-Mejia , Oscar Bustos-Brinez , Fabio A. González

One-class anomaly detection aims to detect objects that do not belong to a predefined normal class. In practice training data lack those anomalous samples; hence state-of-the-art methods are trained to discriminate between normal and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-10 Romain Hermary , Vincent Gaudillière , Abd El Rahman Shabayek , Djamila Aouada

Diffusion models have found valuable applications in anomaly detection by capturing the nominal data distribution and identifying anomalies via reconstruction. Despite their merits, they struggle to localize anomalies of varying scales,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Justin Tebbe , Jawad Tayyub

In current open real-world autonomous driving scenarios, challenges such as sensor failure and extreme weather conditions hinder the generalization of most autonomous driving perception models to these unseen domain due to the domain shifts…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Dacheng Liao , Mengshi Qi , Liang Liu , Huadong Ma

Surface defect detection is a critical task across numerous industries, aimed at efficiently identifying and localising imperfections or irregularities on manufactured components. While numerous methods have been proposed, many fail to meet…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Blaž Rolih , Matic Fučka , Danijel Skočaj

Anomaly detection is defined as the problem of finding data points that do not follow the patterns of the majority. Among the various proposed methods for solving this problem, classification-based methods, including one-class Support…

Optimization and Control · Mathematics 2023-12-05 Amir Hossein Noormohammadia , Seyed Ali MirHassania , Farnaz Hooshmand Khaligh

In this study, we show that diffusion models can be used in industrial scenarios to improve the data augmentation procedure in the context of surface defect detection. In general, defect detection classifiers are trained on ground-truth…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Luigi Capogrosso , Federico Girella , Francesco Taioli , Michele Dalla Chiara , Muhammad Aqeel , Franco Fummi , Francesco Setti , Marco Cristani

Despite the striking performance achieved by modern detectors when training and test data are sampled from the same or similar distribution, the generalization ability of detectors under unknown distribution shifts remains hardly studied.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Xingxuan Zhang , Zekai Xu , Renzhe Xu , Jiashuo Liu , Peng Cui , Weitao Wan , Chong Sun , Chen Li

Tabular anomaly detection, which aims at identifying deviant samples, has been crucial in a variety of real-world applications, such as medical disease identification, financial fraud detection, intrusion monitoring, etc. Although recent…

Machine Learning · Computer Science 2025-06-04 Ruiying Lu , Jinhan Liu , Chuan Du , Dandan Guo

Unsupervised fault detection in multivariate time series plays a vital role in ensuring the stable operation of complex systems. Traditional methods often assume that normal data follow a single Gaussian distribution and identify anomalies…

Machine Learning · Computer Science 2025-07-01 Hong Liu , Xiuxiu Qiu , Yiming Shi , Miao Xu , Zelin Zang , Zhen Lei