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In this paper, we introduce a novel network, called discriminative feature network (DFNet), to address the unsupervised video object segmentation task. To capture the inherent correlation among video frames, we learn discriminative features…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Mingmin Zhen , Shiwei Li , Lei Zhou , Jiaxiang Shang , Haoan Feng , Tian Fang , Long Quan

In this work, we present a novel approach to multi-view action recognition where we guide learned action representations to be separated from view-relevant information in a video. When trying to classify action instances captured from…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Nyle Siddiqui , Praveen Tirupattur , Mubarak Shah

Deep convolutional networks have achieved great success for visual recognition in still images. However, for action recognition in videos, the advantage over traditional methods is not so evident. This paper aims to discover the principles…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Limin Wang , Yuanjun Xiong , Zhe Wang , Yu Qiao , Dahua Lin , Xiaoou Tang , Luc Van Gool

Automated systems that detect the social behavior of deception can enhance human well-being across medical, social work, and legal domains. Labeled datasets to train supervised deception detection models can rarely be collected for…

Computer Vision and Pattern Recognition · Computer Science 2021-11-10 Leena Mathur , Maja J Matarić

Rapid spread of false images and videos on online platforms is an emerging problem. Anyone may add, delete, clone or modify people and entities from an image using various editing software which are readily available. This generates false…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Shayantani Kar , B. Shresth Bhimrajka , Aditya Kumar , Sahil Gupta , Sourav Ghosh , Subhamita Mukherjee , Shauvik Paul

This notebook paper describes our system for the untrimmed classification task in the ActivityNet challenge 2016. We investigate multiple state-of-the-art approaches for action recognition in long, untrimmed videos. We exploit hand-crafted…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Yi Zhu , Shawn Newsam , Zaikun Xu

Data generation is a data augmentation technique for enhancing the generalization ability for skeleton-based human action recognition. Most existing data generation methods face challenges to ensure the temporal consistency of the dynamic…

Computer Vision and Pattern Recognition · Computer Science 2024-01-31 Long Liu , Xin Wang , Fangming Li , Jiayu Chen

Generative adversarial networks (GANs) have been shown to provide an effective way to model complex distributions and have obtained impressive results on various challenging tasks. However, typical GANs require fully-observed data during…

Machine Learning · Computer Science 2019-02-27 Steven Cheng-Xian Li , Bo Jiang , Benjamin Marlin

We introduce 'semi-unsupervised learning', a problem regime related to transfer learning and zero-shot learning where, in the training data, some classes are sparsely labelled and others entirely unlabelled. Models able to learn from…

Machine Learning · Statistics 2018-12-12 Matthew Willetts , Aiden Doherty , Stephen Roberts , Chris Holmes

This paper develops a deep-learning framework to synthesize a ground-level view of a location given an overhead image. We propose a novel conditional generative adversarial network (cGAN) in which the trained generator generates realistic…

Computer Vision and Pattern Recognition · Computer Science 2019-02-21 Xueqing Deng , Yi Zhu , Shawn Newsam

A novel deep neural network training paradigm that exploits the conjoint information in multiple heterogeneous sources is proposed. Specifically, in a RGB-D based action recognition task, it cooperatively trains a single convolutional…

Computer Vision and Pattern Recognition · Computer Science 2018-01-04 Pichao Wang , Wanqing Li , Jun Wan , Philip Ogunbona , Xinwang Liu

Neural networks for multi-domain learning empowers an effective combination of information from different domains by sharing and co-learning the parameters. In visual tracking, the emerging features in shared layers of a multi-domain…

Computer Vision and Pattern Recognition · Computer Science 2020-10-01 Kourosh Meshgi , Maryam Sadat Mirzaei

This paper introduces a novel approach for unsupervised object co-localization using Generative Adversarial Networks (GANs). GAN is a powerful tool that can implicitly learn unknown data distributions in an unsupervised manner. From the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Junsuk Choe , Joo Hyun Park , Hyunjung Shim

We present Generative Adversarial Capsule Network (CapsuleGAN), a framework that uses capsule networks (CapsNets) instead of the standard convolutional neural networks (CNNs) as discriminators within the generative adversarial network (GAN)…

Machine Learning · Statistics 2018-10-03 Ayush Jaiswal , Wael AbdAlmageed , Yue Wu , Premkumar Natarajan

In order to enable high-quality decision making and motion planning of intelligent systems such as robotics and autonomous vehicles, accurate probabilistic predictions for surrounding interactive objects is a crucial prerequisite. Although…

Robotics · Computer Science 2019-04-05 Jiachen Li , Hengbo Ma , Masayoshi Tomizuka

Training Generative Adversarial Networks (GANs) remains a challenging problem. The discriminator trains the generator by learning the distribution of real/generated data. However, the distribution of generated data changes throughout the…

Computer Vision and Pattern Recognition · Computer Science 2024-01-05 Wentian Zhang , Haozhe Liu , Bing Li , Jinheng Xie , Yawen Huang , Yuexiang Li , Yefeng Zheng , Bernard Ghanem

We develop a novel method for training of GANs for unsupervised and class conditional generation of images, called Linear Discriminant GAN (LD-GAN). The discriminator of an LD-GAN is trained to maximize the linear separability between…

Machine Learning · Statistics 2017-07-26 Zhun Sun , Mete Ozay , Takayuki Okatani

Temporal action localization is an important yet challenging research topic due to its various applications. Since the frame-level or segment-level annotations of untrimmed videos require amounts of labor expenditure, studies on the…

Computer Vision and Pattern Recognition · Computer Science 2019-08-08 Chengwei Zhang , Yunlu Xu , Zhanzhan Cheng , Yi Niu , Shiliang Pu , Fei Wu , Futai Zou

Anomaly detection is often considered a challenging field of machine learning due to the difficulty of obtaining anomalous samples for training and the need to obtain a sufficient amount of training data. In recent years, autoencoders have…

Machine Learning · Computer Science 2018-10-15 Yotam Intrator , Gilad Katz , Asaf Shabtai

This paper addresses the problem of real-time action recognition in trimmed videos, for which deep neural networks have defined the state-of-the-art performance in the recent literature. For attaining higher recognition accuracies with…

Computer Vision and Pattern Recognition · Computer Science 2018-10-30 Marian K. Y. Boktor , Ahmad Al-Kabbany , Radwa Khalil , Said El-Khamy
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