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In this paper we address the problem of continuous fine-grained action segmentation, in which multiple actions are present in an unsegmented video stream. The challenge for this task lies in the need to represent the hierarchical nature of…

Computer Vision and Pattern Recognition · Computer Science 2019-09-23 Harshala Gammulle , Simon Denman , Sridha Sridharan , Clinton Fookes

Derived from rapid advances in computer vision and machine learning, video analysis tasks have been moving from inferring the present state to predicting the future state. Vision-based action recognition and prediction from videos are such…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Yu Kong , Yun Fu

In this paper we deal with the problem of predicting action progress in videos. We argue that this is an extremely important task since it can be valuable for a wide range of interaction applications. To this end we introduce a novel…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Federico Becattini , Tiberio Uricchio , Lorenzo Seidenari , Lamberto Ballan , Alberto Del Bimbo

When transporting an object, we unconsciously adapt our movement to its properties, for instance by slowing down when the item is fragile. The most relevant features of an object are immediately revealed to a human observer by the way the…

Automating the detection of anomalous events within long video sequences is challenging due to the ambiguity of how such events are defined. We approach the problem by learning generative models that can identify anomalies in videos using…

Computer Vision and Pattern Recognition · Computer Science 2016-12-16 Jefferson Ryan Medel , Andreas Savakis

Action anticipation involves predicting future actions having observed the initial portion of a video. Typically, the observed video is processed as a whole to obtain a video-level representation of the ongoing activity in the video, which…

Computer Vision and Pattern Recognition · Computer Science 2022-10-24 Megha Nawhal , Akash Abdu Jyothi , Greg Mori

Video prediction aims to generate realistic future frames by learning dynamic visual patterns. One fundamental challenge is to deal with future uncertainty: How should a model behave when there are multiple correct, equally probable future?…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Yunseok Jang , Gunhee Kim , Yale Song

Deep neural networks achieve unprecedented performance levels over many tasks and scale well with large quantities of data, but performance in the low-data regime and tasks like one shot learning still lags behind. While recent work…

Computer Vision and Pattern Recognition · Computer Science 2017-03-24 Akshay Mehrotra , Ambedkar Dukkipati

We study how to generate captions that are not only accurate in describing an image but also discriminative across different images. The problem is both fundamental and interesting, as most machine-generated captions, despite phenomenal…

Computer Vision and Pattern Recognition · Computer Science 2019-03-12 Dianqi Li , Qiuyuan Huang , Xiaodong He , Lei Zhang , Ming-Ting Sun

Web page saliency prediction is a challenge problem in image transformation and computer vision. In this paper, we propose a new model combined with web page outline information to prediction people's interest region in web page. For each…

Computer Vision and Pattern Recognition · Computer Science 2018-05-30 Yu Li , Ya Zhang

We propose a novel unsupervised approach based on a two-stage object-centric adversarial framework that only needs object regions for detecting frame-level local anomalies in videos. The first stage consists in learning the correspondence…

Computer Vision and Pattern Recognition · Computer Science 2020-11-16 Pankaj Raj Roy , Guillaume-Alexandre Bilodeau , Lama Seoud

This paper addresses the critical need for online action representation, which is essential for various applications like rehabilitation, surveillance, etc. The task can be defined as representation of actions as soon as they happen in a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Vishnu S Nair , Sneha Sree , Jayaraj Joseph , Mohanasankar Sivaprakasam

Generative adversarial networks are a novel method for statistical inference that have achieved much empirical success; however, the factors contributing to this success remain ill-understood. In this work, we attempt to analyze generative…

Machine Learning · Computer Science 2018-09-13 Shuang Liu , Kamalika Chaudhuri

We present the first generative adversarial network (GAN) for natural image matting. Our novel generator network is trained to predict visually appealing alphas with the addition of the adversarial loss from the discriminator that is…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Sebastian Lutz , Konstantinos Amplianitis , Aljosa Smolic

The action anticipation task refers to predicting what action will happen based on observed videos, which requires the model to have a strong ability to summarize the present and then reason about the future. Experience and common sense…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Xin Liu , Chao Hao , Zitong Yu , Huanjing Yue , Jingyu Yang

Generative adversarial networks (GAN) approximate a target data distribution by jointly optimizing an objective function through a "two-player game" between a generator and a discriminator. Despite their empirical success, however, two very…

Machine Learning · Computer Science 2017-05-30 Shuang Liu , Olivier Bousquet , Kamalika Chaudhuri

Novelty detection is the process of determining whether a query example differs from the learned training distribution. Previous methods attempt to learn the representation of the normal samples via generative adversarial networks (GANs).…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Chengwei Chen , Yuan Xie , Shaohui Lin , Ruizhi Qiao , Jian Zhou , Xin Tan , Yi Zhang , Lizhuang Ma

Video action analysis is a foundational technology within the realm of intelligent video comprehension, particularly concerning its application in Internet of Things(IoT). However, existing methodologies overlook feature semantics in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-20 Guiqin Wang , Peng Zhao , Cong Zhao , Jing Huang , Siyan Guo , Shusen Yang

Video action anticipation aims to predict future action categories from observed frames. Current state-of-the-art approaches mainly resort to recurrent neural networks to encode history information into hidden states, and predict future…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Wen Wang , Xiaojiang Peng , Yanzhou Su , Yu Qiao , Jian Cheng

Predicting the future is a fantasy but practicality work. It is the key component to intelligent agents, such as self-driving vehicles, medical monitoring devices and robotics. In this work, we consider generating unseen future frames from…

Computer Vision and Pattern Recognition · Computer Science 2019-01-08 Guohao Ying , Yingtian Zou , Lin Wan , Yiming Hu , Jiashi Feng