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Zero-shot point cloud segmentation aims to make deep models capable of recognizing novel objects in point cloud that are unseen in the training phase. Recent trends favor the pipeline which transfers knowledge from seen classes with labels…

Computer Vision and Pattern Recognition · Computer Science 2023-07-21 Yuhang Lu , Qi Jiang , Runnan Chen , Yuenan Hou , Xinge Zhu , Yuexin Ma

Zero-shot learning (ZSL) aims to recognize unseen classes based on the knowledge of seen classes. Previous methods focused on learning direct embeddings from global features to the semantic space in hope of knowledge transfer from seen…

Computer Vision and Pattern Recognition · Computer Science 2021-10-15 Ziyang Wang , Yunhao Gou , Jingjing Li , Yu Zhang , Yang Yang

Generalized zero-shot skeleton-based action recognition (GZSSAR) is a new challenging problem in computer vision community, which requires models to recognize actions without any training samples. Previous studies only utilize the action…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Ming-Zhe Li , Zhen Jia , Zhang Zhang , Zhanyu Ma , Liang Wang

Zero-shot learning for visual recognition, e.g., object and action recognition, has recently attracted a lot of attention. However, it still remains challenging in bridging the semantic gap between visual features and their underlying…

Computer Vision and Pattern Recognition · Computer Science 2017-06-05 Qian Wang , Ke Chen

While remarkable progress has been made on supervised skeleton-based action recognition, the challenge of zero-shot recognition remains relatively unexplored. In this paper, we argue that relying solely on aligning label-level semantics and…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Anqi Zhu , Qiuhong Ke , Mingming Gong , James Bailey

Zero-shot learning (ZSL) tackles the unseen class recognition problem, transferring semantic knowledge from seen classes to unseen ones. Typically, to guarantee desirable knowledge transfer, a common (latent) space is adopted for…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Shiming Chen , Guo-Sen Xie , Yang Liu , Qinmu Peng , Baigui Sun , Hao Li , Xinge You , Ling Shao

Leveraging class semantic descriptions and examples of known objects, zero-shot learning makes it possible to train a recognition model for an object class whose examples are not available. In this paper, we propose a novel zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Soravit Changpinyo , Wei-Lun Chao , Fei Sha

In most recent years, zero-shot recognition (ZSR) has gained increasing attention in machine learning and image processing fields. It aims at recognizing unseen class instances with knowledge transferred from seen classes. This is typically…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Jingcai Guo , Song Guo

This paper investigates the problem of zero-shot action recognition, in the setting where no training videos with seen actions are available. For this challenging scenario, the current leading approach is to transfer knowledge from the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Carlo Bretti , Pascal Mettes

We introduce Skeleton-Cache, the first training-free test-time adaptation framework for skeleton-based zero-shot action recognition (SZAR), aimed at improving model generalization to unseen actions during inference. Skeleton-Cache…

Computer Vision and Pattern Recognition · Computer Science 2025-12-15 Jingmin Zhu , Anqi Zhu , Hossein Rahmani , Jun Liu , Mohammed Bennamoun , Qiuhong Ke

Zero-shot learning extends the conventional object classification to the unseen class recognition by introducing semantic representations of classes. Existing approaches predominantly focus on learning the proper mapping function for…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Yizhe Zhu , Jianwen Xie , Zhiqiang Tang , Xi Peng , Ahmed Elgammal

Zero-Shot Learning (ZSL) aims at classifying unlabeled objects by leveraging auxiliary knowledge, such as semantic representations. A limitation of previous approaches is that only intrinsic properties of objects, e.g. their visual…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 Eloi Zablocki , Patrick Bordes , Benjamin Piwowarski , Laure Soulier , Patrick Gallinari

Zero-shot recognition (ZSR) aims to recognize target-domain data instances of unseen classes based on the models learned from associated pairs of seen-class source and target domain data. One of the key challenges in ZSR is the relative…

Computer Vision and Pattern Recognition · Computer Science 2016-12-06 Ziming Zhang , Venkatesh Saligrama

Human action recognition is pivotal in computer vision, with applications ranging from surveillance to human-robot interaction. Despite the effectiveness of supervised skeleton-based methods, their reliance on exhaustive annotation limits…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Yuxi Zhou , Zhengbo Zhang , Jingyu Pan , Zhiyu Lin , Zhigang Tu

We present a novel problem setting in zero-shot learning, zero-shot object recognition and detection in the context. Contrary to the traditional zero-shot learning methods, which simply infers unseen categories by transferring knowledge…

Computer Vision and Pattern Recognition · Computer Science 2019-04-25 Ruotian Luo , Ning Zhang , Bohyung Han , Linjie Yang

This work introduces a model that can recognize objects in images even if no training data is available for the objects. The only necessary knowledge about the unseen categories comes from unsupervised large text corpora. In our zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2013-03-21 Richard Socher , Milind Ganjoo , Hamsa Sridhar , Osbert Bastani , Christopher D. Manning , Andrew Y. Ng

Graph Convolutional Networks (GCNs) have been widely used to model the high-order dynamic dependencies for skeleton-based action recognition. Most existing approaches do not explicitly embed the high-order spatio-temporal importance to…

Computer Vision and Pattern Recognition · Computer Science 2022-02-07 Lipeng Ke , Kuan-Chuan Peng , Siwei Lyu

Among the existing modalities for 3D action recognition, 3D flow has been poorly examined, although conveying rich motion information cues for human actions. Presumably, its susceptibility to noise renders it intractable, thus challenging…

Computer Vision and Pattern Recognition · Computer Science 2023-06-26 Vasileios Magoulianitis , Athanasios Psaltis

Recent advances in tracking sensors and pose estimation software enable smart systems to use trajectories of skeleton joint locations for supervised learning. We study the problem of accurately recognizing sign language words, which is key…

Computer Vision and Pattern Recognition · Computer Science 2022-02-04 Joachim Gudmundsson , Martin P. Seybold , John Pfeifer

Zero-shot learning (ZSL) enables the recognition of novel classes by leveraging semantic knowledge transfer from known to unknown categories. This knowledge, typically encapsulated in attribute descriptions, aids in identifying…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Haojian Huang , Xiaozhen Qiao , Zhuo Chen , Haodong Chen , Bingyu Li , Zhe Sun , Mulin Chen , Xuelong Li