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We address the problem of detecting anomalies as samples that do not conform to structured patterns represented by low-dimensional manifolds. To this end, we conceive a general anomaly detection framework called Preference Isolation Forest…

Machine Learning · Computer Science 2025-09-19 Filippo Leveni , Luca Magri , Cesare Alippi , Giacomo Boracchi

Every field of Science is undergoing unprecedented changes in the discovery process, and Astronomy has been a main player in this transition since the beginning. The ongoing and future large and complex multi-messenger sky surveys impose a…

Instrumentation and Methods for Astrophysics · Physics 2021-05-12 Maurizio D'Addona , Giuseppe Riccio , Stefano Cavuoti , Crescenzo Tortora , Massimo Brescia

Fall detection based on embedded sensor is a practical and popular research direction in recent years. In terms of a specific application: fall detection methods based upon physics sensors such as [gyroscope and accelerator] have been…

Signal Processing · Electrical Eng. & Systems 2024-03-13 Zeyuan Qu , Tiange Huang , Yuxin Ji , Yongjun Li

Autonomous driving is regarded as one of the most promising remedies to shield human beings from severe crashes. To this end, 3D object detection serves as the core basis of perception stack especially for the sake of path planning, motion…

Computer Vision and Pattern Recognition · Computer Science 2026-02-09 Rui Qian , Xin Lai , Xirong Li

Many methods exist to model and track deformable one-dimensional objects (e.g., cables, ropes, and threads) across a stream of video frames. However, these methods depend on the existence of some initial conditions. To the best of our…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Azarakhsh Keipour , Maryam Bandari , Stefan Schaal

Monocular object detection and tracking have improved drastically in recent years, but rely on a key assumption: that objects are visible to the camera. Many offline tracking approaches reason about occluded objects post-hoc, by linking…

Computer Vision and Pattern Recognition · Computer Science 2020-12-16 Tarasha Khurana , Achal Dave , Deva Ramanan

Camouflaged object detection (COD) aims to segment objects visually embedded in their surroundings, which is a very challenging task due to the high similarity between the objects and the background. To address it, most methods often…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Zhennan Chen , Xuying Zhang , Tian-Zhu Xiang , Ying Tai

Many real-world monitoring and surveillance applications require non-trivial anomaly detection to be run in the streaming model. We consider an incremental-learning approach, wherein a deep-autoencoding (DAE) model of what is normal is…

Computer Vision and Pattern Recognition · Computer Science 2019-12-11 Albert Akhriev , Jakub Marecek

Object detection in autonomous driving applications implies that the detection and tracking of semantic objects are commonly native to urban driving environments, as pedestrians and vehicles. One of the major challenges in state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 G. Melotti , W. Lu , P. Conde , D. Zhao , A. Asvadi , N. Gonçalves , C. Premebida

Object detection is a critical component of transportation systems, particularly for applications such as autonomous driving, traffic monitoring, and infrastructure maintenance. Traditional object detection methods often struggle with…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Taqwa Alhadidi , Ahmed Jaber , Shadi Jaradat , Huthaifa I Ashqar , Mohammed Elhenawy

Anomaly detection without priors of the anomalies is challenging. In the field of unsupervised anomaly detection, traditional auto-encoder (AE) tends to fail based on the assumption that by training only on normal images, the model will not…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Yajie Cui , Zhaoxiang Liu , Shiguo Lian

We show that generative models can be used to capture visual geometry constraints statistically. We use this fact to infer the 3D shape of object categories from raw single-view images. Differently from prior work, we use no external…

Computer Vision and Pattern Recognition · Computer Science 2019-06-05 Shangzhe Wu , Christian Rupprecht , Andrea Vedaldi

One of the most relevant tasks in an intelligent vehicle navigation system is the detection of obstacles. It is important that a visual perception system for navigation purposes identifies obstacles, and it is also important that this…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 Thiago Rateke , Aldo von Wangenheim

Due to the growing amount of data from in-situ sensors in wastewater systems, it becomes necessary to automatically identify abnormal behaviours and ensure high data quality. This paper proposes an anomaly detection method based on a deep…

Signal Processing · Electrical Eng. & Systems 2020-03-09 Stefania Russo , Andy Disch , Frank Blumensaat , Kris Villez

Deep generative models provide powerful tools for distributions over complicated manifolds, such as those of natural images. But many of these methods, including generative adversarial networks (GANs), can be difficult to train, in part…

Machine Learning · Statistics 2017-11-08 Akash Srivastava , Lazar Valkov , Chris Russell , Michael U. Gutmann , Charles Sutton

Research on damage detection of road surfaces using image processing techniques has been actively conducted, achieving considerably high detection accuracies. Many studies only focus on the detection of the presence or absence of damage.…

Computer Vision and Pattern Recognition · Computer Science 2020-01-24 Hiroya Maeda , Yoshihide Sekimoto , Toshikazu Seto , Takehiro Kashiyama , Hiroshi Omata

Road accidents are quite common in almost every part of the world, and, in majority, fatal accidents are attributed to over speeding of vehicles. The tendency to over speeding is usually tried to be controlled using check points at various…

Machine Learning · Computer Science 2024-08-09 Subhasis Dasgupta , Arshi Naaz , Jayeeta Choudhury , Nancy Lahiri

Rotating machines like engines, pumps, or turbines are ubiquitous in modern day societies. Their mechanical parts such as electrical engines, rotors, or bearings are the major components and any failure in them may result in their total…

Machine Learning · Computer Science 2021-01-28 Sabtain Ahmad , Kevin Styp-Rekowski , Sasho Nedelkoski , Odej Kao

Detecting anomalies using deep learning has become a major challenge over the last years, and is becoming increasingly promising in several fields. The introduction of self-supervised learning has greatly helped many methods including…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Loic Jezequel , Ngoc-Son Vu , Jean Beaudet , Aymeric Histace

Maintaining roadway infrastructure is essential for ensuring a safe, efficient, and sustainable transportation system. However, manual data collection for detecting road damage is time-consuming, labor-intensive, and poses safety risks.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-14 Vung Pham , Lan Dong Thi Ngoc , Duy-Linh Bui