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Deep learning models have achieved state-of-the- art performance in recognizing human activities, but often rely on utilizing background cues present in typical computer vision datasets that predominantly have a stationary camera. If these…

Robotics · Computer Science 2017-09-20 Fahimeh Rezazadegan , Sareh Shirazi , Ben Upcroft , Michael Milford

Predicting human interaction is challenging as the on-going activity has to be inferred based on a partially observed video. Essentially, a good algorithm should effectively model the mutual influence between the two interacting subjects.…

Computer Vision and Pattern Recognition · Computer Science 2017-05-29 Yichao Yan , Bingbing Ni , Xiaokang Yang

Rather than simply recognizing the action of a person individually, collective activity recognition aims to find out what a group of people is acting in a collective scene. Previ- ous state-of-the-art methods using hand-crafted potentials…

Computer Vision and Pattern Recognition · Computer Science 2017-09-21 Yongyi Tang , Peizhen Zhang , Jian-Fang Hu , Wei-Shi Zheng

We explore using latent natural language instructions as an expressive and compositional representation of complex actions for hierarchical decision making. Rather than directly selecting micro-actions, our agent first generates a latent…

Artificial Intelligence · Computer Science 2019-10-03 Hengyuan Hu , Denis Yarats , Qucheng Gong , Yuandong Tian , Mike Lewis

In this paper, a novel human action recognition technique from video is presented. Any action of human is a combination of several micro action sequences performed by one or more body parts of the human. The proposed approach uses…

Computer Vision and Pattern Recognition · Computer Science 2015-10-16 Satyabrata Maity , Debotosh Bhattacharjee , Amlan Chakrabarti

People easily recognize new visual categories that are new combinations of known components. This compositional generalization capacity is critical for learning in real-world domains like vision and language because the long tail of new…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Yuval Atzmon , Felix Kreuk , Uri Shalit , Gal Chechik

Action recognition from still images is an important task of computer vision applications such as image annotation, robotic navigation, video surveillance and several others. Existing approaches mainly rely on either bag-of-feature…

Computer Vision and Pattern Recognition · Computer Science 2015-07-31 Shaukat Abidi , Massimo Piccardi , Mary-Anne Williams

People learn in fast and flexible ways that have not been emulated by machines. Once a person learns a new verb "dax," he or she can effortlessly understand how to "dax twice," "walk and dax," or "dax vigorously." There have been striking…

Computation and Language · Computer Science 2019-05-14 Brenden M. Lake , Tal Linzen , Marco Baroni

Human-Object Interaction (HOI) detection, inferring the relationships between human and objects from images/videos, is a fundamental task for high-level scene understanding. However, HOI detection usually suffers from the open long-tailed…

Computer Vision and Pattern Recognition · Computer Science 2021-03-26 Zhi Hou , Baosheng Yu , Yu Qiao , Xiaojiang Peng , Dacheng Tao

While Human-Object Interaction(HOI) Detection has achieved tremendous advances in recent, it still remains challenging due to complex interactions with multiple humans and objects occurring in images, which would inevitably lead to…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Kunlun Xu , Zhimin Li , Zhijun Zhang , Leizhen Dong , Wenhui Xu , Luxin Yan , Sheng Zhong , Xu Zou

Due to the compact and rich high-level representations offered, skeleton-based human action recognition has recently become a highly active research topic. Previous studies have demonstrated that investigating joint relationships in spatial…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Ali Farajzadeh Bavil , Hamed Damirchi , Hamid D. Taghirad

One of the distinguishing aspects of human language is its compositionality, which allows us to describe complex environments with limited vocabulary. Previously, it has been shown that neural network agents can learn to communicate in a…

Artificial Intelligence · Computer Science 2018-04-09 Edward Choi , Angeliki Lazaridou , Nando de Freitas

Language is compositional; an instruction can express multiple relation constraints to hold among objects in a scene that a robot is tasked to rearrange. Our focus in this work is an instructable scene-rearranging framework that generalizes…

We present CompoSuite, an open-source simulated robotic manipulation benchmark for compositional multi-task reinforcement learning (RL). Each CompoSuite task requires a particular robot arm to manipulate one individual object to achieve a…

Machine Learning · Computer Science 2022-07-12 Jorge A. Mendez , Marcel Hussing , Meghna Gummadi , Eric Eaton

Object manipulation is a natural activity we perform every day. How humans handle objects can communicate not only the willfulness of the acting, or key aspects of the context where we operate, but also the properties of the objects…

We study the problem of learning how to predict attribute-object compositions from images, and its generalization to unseen compositions missing from the training data. To the best of our knowledge, this is a first large-scale study of this…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Filip Radenovic , Animesh Sinha , Albert Gordo , Tamara Berg , Dhruv Mahajan

The articulated and complex nature of human actions makes the task of action recognition difficult. One approach to handle this complexity is dividing it to the kinetics of body parts and analyzing the actions based on these partial…

Computer Vision and Pattern Recognition · Computer Science 2015-08-03 Amir Shahroudy , Gang Wang , Tian-Tsong Ng , Qingxiong Yang

Recognizing how objects interact with each other is a crucial task in visual recognition. If we define the context of the interaction to be the objects involved, then most current methods can be categorized as either: (i) training a single…

Computer Vision and Pattern Recognition · Computer Science 2017-05-02 Bohan Zhuang , Lingqiao Liu , Chunhua Shen , Ian Reid

Humans are remarkably flexible when understanding new sentences that include combinations of concepts they have never encountered before. Recent work has shown that while deep networks can mimic some human language abilities when presented…

Computation and Language · Computer Science 2021-10-20 Yen-Ling Kuo , Boris Katz , Andrei Barbu

Detecting and recognizing objects interacting with humans lie in the center of first-person (egocentric) daily activity recognition. However, due to noisy camera motion and frequent changes in viewpoint and scale, most of the previous…

Computer Vision and Pattern Recognition · Computer Science 2016-06-01 Changzhi Luo , Bingbing Ni , Jun Yuan , Jianfeng Wang , Shuicheng Yan , Meng Wang