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We present a novel approach for unsupervised activity segmentation which uses video frame clustering as a pretext task and simultaneously performs representation learning and online clustering. This is in contrast with prior works where…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Sateesh Kumar , Sanjay Haresh , Awais Ahmed , Andrey Konin , M. Zeeshan Zia , Quoc-Huy Tran

Trajectory forecasting is critical for autonomous platforms to make safe planning and actions. Currently, most trajectory forecasting methods assume that object trajectories have been extracted and directly develop trajectory predictors…

Computer Vision and Pattern Recognition · Computer Science 2022-02-11 Pu Zhang , Lei Bai , Jianru Xue , Jianwu Fang , Nanning Zheng , Wanli Ouyang

Despite their irresistible success, deep learning algorithms still heavily rely on annotated data. On the other hand, unsupervised settings pose many challenges, especially about determining the right inductive bias in diverse scenarios.…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Beril Besbinar , Pascal Frossard

Predicting future behavior of other traffic participants is an essential task that needs to be solved by automated vehicles and human drivers alike to achieve safe and situationaware driving. Modern approaches to vehicles trajectory…

Computer Vision and Pattern Recognition · Computer Science 2020-10-02 Florian Mirus , Terrence C. Stewart , Jorg Conradt

We propose a deep video prediction model conditioned on a single image and an action class. To generate future frames, we first detect keypoints of a moving object and predict future motion as a sequence of keypoints. The input image is…

Computer Vision and Pattern Recognition · Computer Science 2019-10-07 Yunji Kim , Seonghyeon Nam , In Cho , Seon Joo Kim

Estimating the travel time of a path is of great importance to smart urban mobility. Existing approaches are either based on estimating the time cost of each road segment which are not able to capture many cross-segment complex factors, or…

Machine Learning · Computer Science 2018-02-08 Hanyuan Zhang , Hao Wu , Weiwei Sun , Baihua Zheng

With growing numbers of intelligent autonomous systems in human environments, the ability of such systems to perceive, understand and anticipate human behavior becomes increasingly important. Specifically, predicting future positions of…

Robotics · Computer Science 2020-07-27 Andrey Rudenko , Luigi Palmieri , Michael Herman , Kris M. Kitani , Dariu M. Gavrila , Kai O. Arras

Algorithms for motion planning in unknown environments are generally limited in their ability to reason about the structure of the unobserved environment. As such, current methods generally navigate unknown environments by relying on…

Robotics · Computer Science 2019-10-21 Amine Elhafsi , Boris Ivanovic , Lucas Janson , Marco Pavone

Accurate trajectory prediction can improve General Aviation safety in non-towered terminal airspace, where high traffic density increases accident risk. We present ASCENT, a lightweight transformer-based model for multi-modal 3D aircraft…

Robotics · Computer Science 2026-03-18 Alexander Prutsch , David Schinagl , Horst Possegger

The global expansion of maritime activities and the development of the Automatic Identification System (AIS) have driven the advances in maritime monitoring systems in the last decade. Monitoring vessel behavior is fundamental to safeguard…

Machine Learning · Computer Science 2020-04-09 Lucas May Petry , Amilcar Soares , Vania Bogorny , Bruno Brandoli , Stan Matwin

Navigating autonomous underwater vehicles (AUVs) in unknown environments is significantly challenging due to poor visibility, weak signal transmission, and dynamic water currents. These factors pose challenges in accurate global…

Aerial Vehicles follow a guided approach based on Latitude, Longitude and Altitude. This information can be used for calculating the status of maneuvering for the aerial vehicles along the line of trajectory. This is a binary classification…

Robotics · Computer Science 2022-07-13 Abhishek Gupta , Sarvesh Thustu , Riti Thakor , Saniya Patil , Raunak Joshi , Ronald Melvin Laban

A novel control & software architecture using ROS C++ is introduced for object interception by a UAV with a mounted depth camera and no external aid. Existing work in trajectory prediction focused on the use of off-board tools like motion…

Robotics · Computer Science 2021-11-18 Jasper Tan , Arijit Dasgupta , Arjun Agrawal , Sutthiphong Srigrarom

This work introduces an adaptive Bayesian algorithm for real-time trajectory prediction via intention inference, where a target's intentions and motion characteristics are unknown and subject to change. The method concurrently estimates two…

Robotics · Computer Science 2025-09-30 Shunan Yin , Zehui Lu , Shaoshuai Mou

Motion prediction is an important aspect for Autonomous Driving (AD) and Advance Driver Assistance Systems (ADAS). Current state-of-the-art motion prediction methods rely on High Definition (HD) maps for capturing the surrounding context of…

Machine Learning · Computer Science 2025-04-15 Harsh Yadav , Maximilian Schaefer , Kun Zhao , Tobias Meisen

In this paper, we address the problem of autonomous search and vessel detection in an unknown GNSS-denied maritime environment with fixed-wing UAVs. The main challenge in such environments with limited localization, communication range, and…

Cost-effective localization methods for Autonomous Underwater Vehicle (AUV) navigation are key for ocean monitoring and data collection at high resolution in time and space. Algorithmic solutions suitable for real-time processing that…

Robotics · Computer Science 2025-03-12 Ellen Davenport , Khoa Nguyen , Junsu Jang , Clair Ma , Sean Fish , Luc Lenain , Florian Meyer

Underwater vehicles are employed in the exploration of dynamic environments where tuning of a specific controller for each task would be time-consuming and unreliable as the controller depends on calculated mathematical coefficients in…

Systems and Control · Electrical Eng. & Systems 2021-01-14 Wilmer Ariza Ramirez , Zhi Q. Leong , Hung D. Nguyen , S. G. Jayasinghe

This paper proposes a novel method of learning by predicting view assignments with support samples (PAWS). The method trains a model to minimize a consistency loss, which ensures that different views of the same unlabeled instance are…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Mahmoud Assran , Mathilde Caron , Ishan Misra , Piotr Bojanowski , Armand Joulin , Nicolas Ballas , Michael Rabbat

In order to guarantee the safety of payload, crew, and structures, ships must exhibit good seakeeping, maneuverability, and structural-response performance, also when they operate in adverse weather conditions. In this context, the…

Dynamical Systems · Mathematics 2022-11-08 Andrea Serani , Paolo Dragone , Frederick Stern , Matteo Diez