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Lane determination and lane sequence determination are important components for many Connected and Automated Vehicle (CAV) applications. Lane determination has been solved using Hidden Markov Model (HMM) among other methods. The existing…

Robotics · Computer Science 2025-05-13 Mike Stas , Wang Hu , Jay A. Farrell

Visual Place Recognition (VPR) is the ability to correctly recall a previously visited place under changing viewpoints and appearances. A large number of handcrafted and deep-learning-based VPR techniques exist, where the former suffer from…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 Mihnea-Alexandru Tomită , Mubariz Zaffar , Michael Milford , Klaus McDonald-Maier , Shoaib Ehsan

In this paper, we propose a new method based on Hidden Markov Models to interpret temporal sequences of sensor data from mobile robots to automatically detect features. Hidden Markov Models have been used for a long time in pattern…

Artificial Intelligence · Computer Science 2007-05-23 Olivier Aycard , Jean-Francois Mari , Richard Washington

Recognizing various surgical tools, actions and phases from surgery videos is an important problem in computer vision with exciting clinical applications. Existing deep-learning-based methods for this problem either process each surgical…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Haifeng Wang , Hao Xu , Jun Wang , Jian Zhou , Ke Deng

This paper proposes a self-supervised objective for learning representations that localize objects under occlusion - a property known as object permanence. A central question is the choice of learning signal in cases of total occlusion.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Pavel Tokmakov , Allan Jabri , Jie Li , Adrien Gaidon

Using supervised machine learning approaches to recognize human activities from on-body wearable accelerometers generally requires a large amount of labelled data. When ground truth information is not available, too expensive, time…

Machine Learning · Statistics 2013-12-30 Dorra Trabelsi , Samer Mohammed , Faicel Chamroukhi , Latifa Oukhellou , Yacine Amirat

Modeling complex phenomena typically involves the use of both discrete and continuous variables. Such a setting applies across a wide range of problems, from identifying trends in time-series data to performing effective compositional scene…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Tuan Anh Le , Katherine M. Collins , Luke Hewitt , Kevin Ellis , N. Siddharth , Samuel J. Gershman , Joshua B. Tenenbaum

Where am I? This is one of the most critical questions that any intelligent system should answer to decide whether it navigates to a previously visited area. This problem has long been acknowledged for its challenging nature in simultaneous…

Robotics · Computer Science 2022-11-10 Konstantinos A. Tsintotas , Loukas Bampis , Antonios Gasteratos

Visual Place Recognition (VPR) is a scene-oriented image retrieval problem in computer vision in which re-ranking based on local features is commonly employed to improve performance. In robotics, VPR is also referred to as Loop Closure…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Bingxi Liu , Hao Chen , Shiyi Guo , Yihong Wu , Jinqiang Cui , Hong Zhang

Structured distributions, i.e. distributions over combinatorial spaces, are commonly used to learn latent probabilistic representations from observed data. However, scaling these models is bottlenecked by the high computational and memory…

Computation and Language · Computer Science 2022-01-11 Justin T. Chiu , Yuntian Deng , Alexander M. Rush

Video Object Segmentation (VOS) is foundational to numerous computer vision applications, including surveillance, autonomous driving, robotics and generative video editing. However, existing VOS models often struggle with precise mask…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Elham Soltani Kazemi , Imad Eddine Toubal , Gani Rahmon , Jaired Collins , K. Palaniappan

We aim to model unknown file processing. As the content of log files often evolves over time, we established a dynamic statistical model which learns and adapts processing and parsing rules. First, we limit the amount of unstructured text…

Machine Learning · Computer Science 2020-01-07 Nadine Kuhnert , Andreas Maier

Autonomous agents such as cars, robots and drones need to precisely localize themselves in diverse environments, including in GPS-denied indoor environments. One approach for precise localization is visual place recognition (VPR), which…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Ni Wang , Zihan You , Emre Neftci , Thorben Schoepe

Structuring latent representations in a hierarchical manner enables models to learn patterns at multiple levels of abstraction. However, most prevalent image understanding models focus on visual similarity, and learning visual hierarchies…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Ziwei Wang , Sameera Ramasinghe , Chenchen Xu , Julien Monteil , Loris Bazzani , Thalaiyasingam Ajanthan

Visual attention mechanisms are a key component of neural network models for computer vision. By focusing on a discrete set of objects or image regions, these mechanisms identify the most relevant features and use them to build more…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 António Farinhas , André F. T. Martins , Pedro M. Q. Aguiar

Accurate and robust recognition and prediction of traffic situation plays an important role in autonomous driving, which is a prerequisite for risk assessment and effective decision making. Although there exist a lot of works dealing with…

Artificial Intelligence · Computer Science 2018-09-11 Jiachen Li , Hengbo Ma , Wei Zhan , Masayoshi Tomizuka

Legged robots have the potential to expand the reach of autonomy beyond paved roads. In this work, we consider the difficult problem of locomotion on challenging terrains using a single forward-facing depth camera. Due to the partial…

Robotics · Computer Science 2023-04-04 Ruihan Yang , Ge Yang , Xiaolong Wang

Localization is an essential capability for mobile robots. A rapidly growing field of research in this area is Visual Place Recognition (VPR), which is the ability to recognize previously seen places in the world based solely on images.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Stefan Schubert , Peer Neubert , Sourav Garg , Michael Milford , Tobias Fischer

The detection of change-points in heterogeneous sequences is a statistical challenge with many applications in fields such as finance, signal analysis and biology. A wide variety of literature exists for finding an ideal set of…

Applications · Statistics 2012-12-11 The Minh Luong , Vittorio Perduca , Gregory Nuel

This work investigates the problem of instance-level image retrieval re-ranking with the constraint of memory efficiency, ultimately aiming to limit memory usage to 1KB per image. Departing from the prevalent focus on performance…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Pavel Suma , Giorgos Kordopatis-Zilos , Ahmet Iscen , Giorgos Tolias