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In this work, we present an appearance based human activity recognition system. It uses background modeling to segment the foreground object and extracts useful discriminative features for representing activities performed by humans and…

Robotics · Computer Science 2016-02-11 Bappaditya Mandal

We present a novel hierarchical model for human activity recognition. In contrast to approaches that successively recognize actions and activities, our approach jointly models actions and activities in a unified framework, and their labels…

Robotics · Computer Science 2015-03-09 Ninghang Hu , Gwenn Englebienne , Zhongyu Lou , Ben Kröse

This paper presents a novel yet intuitive approach to unsupervised feature learning. Inspired by the human visual system, we explore whether low-level motion-based grouping cues can be used to learn an effective visual representation.…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Deepak Pathak , Ross Girshick , Piotr Dollár , Trevor Darrell , Bharath Hariharan

Finding correspondences between structural entities decomposing images is of high interest for computer vision applications. In particular, we analyze how to accurately track superpixels - visual primitives generated by aggregating adjacent…

Computer Vision and Pattern Recognition · Computer Science 2019-02-27 Pierre-Henri Conze , Florian Tilquin , Mathieu Lamard , Fabrice Heitz , Gwenolé Quellec

Prospection, the act of predicting the consequences of many possible futures, is intrinsic to human planning and action, and may even be at the root of consciousness. Surprisingly, this idea has been explored comparatively little in…

Robotics · Computer Science 2018-04-03 Chris Paxton , Yotam Barnoy , Kapil Katyal , Raman Arora , Gregory D. Hager

Human-centred systems require an understanding of human actions in the physical world. Temporally extended sequences of actions are intentional and structured, yet existing methods for recognising what actions are performed often do not…

Artificial Intelligence · Computer Science 2026-04-21 Rimvydas Rubavicius , Manisha Dubey , N. Siddharth , Subramanian Ramamoorthy

Agents capable of reasoning and planning in the real world require the ability of predicting the consequences of their actions. While world models possess this capability, they most often require action labels, that can be complex to obtain…

Artificial Intelligence · Computer Science 2026-01-21 Quentin Garrido , Tushar Nagarajan , Basile Terver , Nicolas Ballas , Yann LeCun , Michael Rabbat

Inspired by human neurological structures for action anticipation, we present an action anticipation model that enables the prediction of plausible future actions by forecasting both the visual and temporal future. In contrast to current…

Computer Vision and Pattern Recognition · Computer Science 2019-12-17 Harshala Gammulle , Simon Denman , Sridha Sridharan , Clinton Fookes

Multi-view multi-human association and tracking (MvMHAT), is a new but important problem for multi-person scene video surveillance, aiming to track a group of people over time in each view, as well as to identify the same person across…

Computer Vision and Pattern Recognition · Computer Science 2024-02-01 Wei Feng , Feifan Wang , Ruize Han , Zekun Qian , Song Wang

Being able to detect and recognize human activities is essential for several applications, including personal assistive robotics. In this paper, we perform detection and recognition of unstructured human activity in unstructured…

Robotics · Computer Science 2014-06-25 Jaeyong Sung , Colin Ponce , Bart Selman , Ashutosh Saxena

The ability to detect and track objects in the visual world is a crucial skill for any intelligent agent, as it is a necessary precursor to any object-level reasoning process. Moreover, it is important that agents learn to track objects…

Machine Learning · Computer Science 2019-11-21 Eric Crawford , Joelle Pineau

Point-supervised Temporal Action Localization (PTAL) adopts a lightly frame-annotated paradigm (\textit{i.e.}, labeling only a single frame per action instance) to train a model to effectively locate action instances within untrimmed…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Yunchuan Ma , Laiyun Qing , Guorong Li , Yuqing Liu , Yuankai Qi , Qingming Huang

We seek to learn a generalizable goal-conditioned policy that enables zero-shot robot manipulation: interacting with unseen objects in novel scenes without test-time adaptation. While typical approaches rely on a large amount of…

Robotics · Computer Science 2024-08-12 Homanga Bharadhwaj , Roozbeh Mottaghi , Abhinav Gupta , Shubham Tulsiani

Understanding visual reality involves acquiring common-sense knowledge about countless regularities in the visual world, e.g., how illumination alters the appearance of objects in a scene, and how motion changes their apparent spatial…

Computer Vision and Pattern Recognition · Computer Science 2016-10-03 Filip Piekniewski , Patryk Laurent , Csaba Petre , Micah Richert , Dimitry Fisher , Todd Hylton

We have witnessed impressive advances in video action understanding. Increased dataset sizes, variability, and computation availability have enabled leaps in performance and task diversification. Current systems can provide coarse- and…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Alexandros Stergiou , Ronald Poppe

In this paper, we focus on the task of extracting visual correspondences across videos. Given a query video clip from an action class, we aim to align it with training videos in space and time. Obtaining training data for such a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Senthil Purushwalkam , Tian Ye , Saurabh Gupta , Abhinav Gupta

Video Captioning is considered to be one of the most challenging problems in the field of computer vision. Video Captioning involves the combination of different deep learning models to perform object detection, action detection, and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Soheyla Amirian , Abolfazl Farahani , Hamid R. Arabnia , Khaled Rasheed , Thiab R. Taha

Advancements in deep neural networks have contributed to near perfect results for many computer vision problems such as object recognition, face recognition and pose estimation. However, human action recognition is still far from…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Asanka G. Perera , Yee Wei Law , Titilayo T. Ogunwa , Javaan Chahl

Humans make decisions and act alongside other humans to pursue both short-term and long-term goals. As a result of ongoing progress in areas such as computing science and automation, humans now also interact with non-human agents of varying…

Artificial Intelligence · Computer Science 2019-05-08 Patrick M. Pilarski , Andrew Butcher , Michael Johanson , Matthew M. Botvinick , Andrew Bolt , Adam S. R. Parker

Action recognition is so far mainly focusing on the problem of classification of hand selected preclipped actions and reaching impressive results in this field. But with the performance even ceiling on current datasets, it also appears that…

Computer Vision and Pattern Recognition · Computer Science 2019-06-05 Hilde Kuehne , Ahsan Iqbal , Alexander Richard , Juergen Gall