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For artistic applications, video generation requires fine-grained control over both performance and cinematography, i.e., the actor's motion and the camera trajectory. We present ActCam, a zero-shot method for video generation that jointly…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Omar El Khalifi , Thomas Rossi , Oscar Fossey , Thibault Fouque , Ulysse Mizrahi , Philip Torr , Ivan Laptev , Fabio Pizzati , Baptiste Bellot-Gurlet

The success of Zero-shot Action Recognition (ZSAR) methods is intrinsically related to the nature of semantic side information used to transfer knowledge, although this aspect has not been primarily investigated in the literature. This work…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Valter Estevam , Rayson Laroca , Helio Pedrini , David Menotti

One-shot action recognition aims to recognize new action categories from a single reference example, typically referred to as the anchor example. This work presents a novel approach for one-shot action recognition in the wild that computes…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Alberto Sabater , Laura Santos , Jose Santos-Victor , Alexandre Bernardino , Luis Montesano , Ana C. Murillo

This paper presents a novel framework for real-time human action recognition in industrial contexts, using standard 2D cameras. We introduce a complete pipeline for robust and real-time estimation of human joint kinematics, input to a…

In this paper, we examined the zero-shot activity recognition task with the usage of videos. We introduce an auto-encoder based model to construct a multimodal joint embedding space between the visual and textual manifolds. On the visual…

Computer Vision and Pattern Recognition · Computer Science 2020-02-07 Evin Pinar Ornek

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

Video action recognition is one of the representative tasks for video understanding. Over the last decade, we have witnessed great advancements in video action recognition thanks to the emergence of deep learning. But we also encountered…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Yi Zhu , Xinyu Li , Chunhui Liu , Mohammadreza Zolfaghari , Yuanjun Xiong , Chongruo Wu , Zhi Zhang , Joseph Tighe , R. Manmatha , Mu Li

Recognizing human actions based on videos has became one of the most popular areas of research in computer vision in recent years. This area has many applications such as surveillance, robotics, health care, video search and human-computer…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Aytekin Nebisoy , Saber Malekzadeh

Human activity, which usually consists of several actions, generally covers interactions among persons and or objects. In particular, human actions involve certain spatial and temporal relationships, are the components of more complicated…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Zhenyu Liu , Yaqiang Yao , Yan Liu , Yuening Zhu , Zhenchao Tao , Lei Wang , Yuhong Feng

Activity recognition is the ability to identify and recognize the action or goals of the agent. The agent can be any object or entity that performs action that has end goals. The agents can be a single agent performing the action or group…

Machine Learning · Computer Science 2019-06-19 Ashwin Geet D'Sa , B. G. Prasad

Video diffusion models, trained on large-scale datasets, naturally capture correspondences of shared features across frames. Recent works have exploited this property for tasks such as optical flow prediction and tracking in a zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Tianqi Zhang , Ziyi Wang , Wenzhao Zheng , Weiliang Chen , Yuanhui Huang , Zhengyang Huang , Jie Zhou , Jiwen Lu

In this paper, a novel signature of human action recognition, namely the curvature of a video sequence, is introduced. In this way, the distribution of sequential data is modeled, which enables few-shot learning. Instead of depending on…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 He Chen , Gregory S. Chirikjian

Existing methods on video-based action recognition are generally view-dependent, i.e., performing recognition from the same views seen in the training data. We present a novel multiview spatio-temporal AND-OR graph (MST-AOG) representation…

Computer Vision and Pattern Recognition · Computer Science 2014-05-14 Jiang wang , Xiaohan Nie , Yin Xia , Ying Wu , Song-Chun Zhu

We present an approach for detecting human-object interactions (HOIs) in images, based on the idea that humans interact with functionally similar objects in a similar manner. The proposed model is simple and efficiently uses the data,…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Ankan Bansal , Sai Saketh Rambhatla , Abhinav Shrivastava , Rama Chellappa

Understanding human actions is a crucial problem for service robots. However, the general trend in Action Recognition is developing and testing these systems on structured datasets. That's why this work presents a practical Skeleton-based…

Robotics · Computer Science 2019-05-15 Cagatay Odabasi , Jewel Jose

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

World action models (WAMs) have emerged as a promising direction for robot policy learning, as they can leverage powerful video backbones to model the future states. However, existing approaches often rely on separate action modules, or use…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Haoyu Zhen , Zixian Gao , Qiao Sun , Yilin Zhao , Yuncong Yang , Yilun Du , Pengsheng Guo , Tsun-Hsuan Wang , Yi-Ling Qiao , Chuang Gan

We propose a method for human action recognition, one that can localize the spatiotemporal regions that `define' the actions. This is a challenging task due to the subtlety of human actions in video and the co-occurrence of contextual…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Yang Wang , Vinh Tran , Gedas Bertasius , Lorenzo Torresani , Minh Hoai

Human video motion transfer has a wide range of applications in multimedia, computer vision and graphics. Recently, due to the rapid development of Generative Adversarial Networks (GANs), there has been significant progress in the field.…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Dongxu Wei , Xiaowei Xu , Haibin Shen , Kejie Huang

Human action recognition in videos is a critical task with significant implications for numerous applications, including surveillance, sports analytics, and healthcare. The challenge lies in creating models that are both precise in their…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Yufei Xie