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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

The CLIP model has demonstrated significant advancements in aligning visual and language modalities through large-scale pre-training on image-text pairs, enabling strong zero-shot classification and retrieval capabilities on various…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Gensheng Pei , Tao Chen , Yujia Wang , Xinhao Cai , Xiangbo Shu , Tianfei Zhou , Yazhou Yao

Task-oriented grasping, which involves grasping specific parts of objects based on their functions, is crucial for developing advanced robotic systems capable of performing complex tasks in dynamic environments. In this paper, we propose a…

The application of zero-shot learning in computer vision has been revolutionized by the use of image-text matching models. The most notable example, CLIP, has been widely used for both zero-shot classification and guiding generative models…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Roni Paiss , Hila Chefer , Lior Wolf

In generative adversarial imitation learning (GAIL), the agent aims to learn a policy from an expert demonstration so that its performance cannot be discriminated from the expert policy on a certain predefined reward set. In this paper, we…

Machine Learning · Computer Science 2021-08-20 Zhihan Liu , Yufeng Zhang , Zuyue Fu , Zhuoran Yang , Zhaoran Wang

Vision-language pre-training methods, e.g., CLIP, demonstrate an impressive zero-shot performance on visual categorizations with the class proxy from the text embedding of the class name. However, the modality gap between the text and…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Qi Qian , Yuanhong Xu , Juhua Hu

Zero-shot generative model adaptation (ZSGM) aims to adapt a pre-trained generator to a target domain using only text guidance and without any samples from the target domain. Central to recent ZSGM approaches are directional loss which use…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Guimeng Liu , Milad Abdollahzadeh , Ngai-Man Cheung

Existing zero-shot temporal action detection (ZSTAD) methods predominantly use fully supervised or unsupervised strategies to recognize unseen activities. However, these training-based methods are prone to domain shifts and require high…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Chaolei Han , Hongsong Wang , Jidong Kuang , Lei Zhang , Jie Gui

Temporal Action Localization (TAL) aims to predict both action category and temporal boundary of action instances in untrimmed videos, i.e., start and end time. Fully-supervised solutions are usually adopted in most existing works, and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Ding Li , Xuebing Yang , Yongqiang Tang , Chenyang Zhang , Wensheng Zhang

Due to the impressive zero-shot capabilities, pre-trained vision-language models (e.g. CLIP), have attracted widespread attention and adoption across various domains. Nonetheless, CLIP has been observed to be susceptible to adversarial…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Lu Yu , Haiyang Zhang , Changsheng Xu

Vision and Language Models (VLMs), such as CLIP, have enabled visual recognition of a potentially unlimited set of categories described by text prompts. However, for the best visual recognition performance, these models still require tuning…

Computer Vision and Pattern Recognition · Computer Science 2023-09-14 M. Jehanzeb Mirza , Leonid Karlinsky , Wei Lin , Horst Possegger , Rogerio Feris , Horst Bischof

Temporal action proposal generation (TAPG) is a fundamental and challenging task in video understanding, especially in temporal action detection. Most previous works focus on capturing the local temporal context and can well locate simple…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Shuning Chang , Pichao Wang , Fan Wang , Hao Li , Jiashi Feng

The goal of few-shot video classification is to learn a classification model with good generalization ability when trained with only a few labeled videos. However, it is difficult to learn discriminative feature representations for videos…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Fei Pan , Chunlei Xu , Jie Guo , Yanwen Guo

The past few years have seen immense progress on two fronts that are critical to safe, widespread mobile robot deployment: predicting uncertain motion of multiple agents, and planning robot motion under uncertainty. However, the numerical…

Robotics · Computer Science 2024-06-05 Luca Paparusso , Shreyas Kousik , Edward Schmerling , Francesco Braghin , Marco Pavone

Weakly Supervised Temporal Action Localization (WSTAL) aims to localize and classify action instances in long untrimmed videos with only video-level category labels. Due to the lack of snippet-level supervision for indicating action…

Computer Vision and Pattern Recognition · Computer Science 2024-09-09 Jia-Run Du , Jia-Chang Feng , Kun-Yu Lin , Fa-Ting Hong , Xiao-Ming Wu , Zhongang Qi , Ying Shan , Wei-Shi Zheng

This study aims to address the problem of multi-domain task incremental learning~(MTIL), which requires that vision-language models~(VLMs) continuously acquire new knowledge while maintaining their inherent zero-shot recognition capability.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Songlin Dong , Chenhao Ding , Jiangyang Li , Jizhou Han , Qiang Wang , Yuhang He , Yihong Gong

Group activity detection (GAD) is the task of identifying members of each group and classifying the activity of the group at the same time in a video. While GAD has been studied recently, there is still much room for improvement in both…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Dongkeun Kim , Youngkil Song , Minsu Cho , Suha Kwak

We develop a novel framework for action localization in videos. We propose the Tube Proposal Network (TPN), which can generate generic, class-independent, video-level tubelet proposals in videos. The generated tubelet proposals can be…

Computer Vision and Pattern Recognition · Computer Science 2017-06-01 Jiawei He , Mostafa S. Ibrahim , Zhiwei Deng , Greg Mori

Zero-Shot Object Goal Navigation (ZS-OGN) enables robots or agents to navigate toward objects of unseen categories without object-specific training. Traditional approaches often leverage categorical semantic information for navigation…

Robotics · Computer Science 2024-11-01 Shuaihang Yuan , Hao Huang , Yu Hao , Congcong Wen , Anthony Tzes , Yi Fang

Zero-shot action recognition relies on transferring knowledge from vision-language models to unseen actions using semantic descriptions. While recent methods focus on temporal modeling or architectural adaptations to handle video data, we…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Salman Iqbal , Waheed Rehman