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There is a recent trend in the LiDAR perception field towards unifying multiple tasks in a single strong network with improved performance, as opposed to using separate networks for each task. In this paper, we introduce a new LiDAR…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Zixiang Zhou , Dongqiangzi Ye , Weijia Chen , Yufei Xie , Yu Wang , Panqu Wang , Hassan Foroosh

Recent few-shot action recognition (FSAR) methods typically perform semantic matching on learned discriminative features to achieve promising performance. However, most FSAR methods focus on single-scale (e.g., frame-level, segment-level,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Hongyu Qu , Rui Yan , Xiangbo Shu , Hailiang Gao , Peng Huang , Guo-Sen Xie

Skeleton-based action recognition, which classifies human actions based on the coordinates of joints and their connectivity within skeleton data, is widely utilized in various scenarios. While Graph Convolutional Networks (GCNs) have been…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Jeonghyeok Do , Munchurl Kim

We present a novel approach for action recognition in UAV videos. Our formulation is designed to handle occlusion and viewpoint changes caused by the movement of a UAV. We use the concept of mutual information to compute and align the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Ruiqi Xian , Xijun Wang , Dinesh Manocha

While depth cameras and inertial sensors have been frequently leveraged for human action recognition, these sensing modalities are impractical in many scenarios where cost or environmental constraints prohibit their use. As such, there has…

Computer Vision and Pattern Recognition · Computer Science 2019-02-27 William McNally , Alexander Wong , John McPhee

Action recognition is a crucial task in artificial intelligence, with significant implications across various domains. We initially perform a comprehensive analysis of seven prominent action recognition methods across five widely-used…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Jiangning Wei , Lixiong Qin , Bo Yu , Tianjian Zou , Chuhan Yan , Dandan Xiao , Yang Yu , Lan Yang , Ke Li , Jun Liu

Viewpoint change invariance and action temporal consistency are critical aspects for the effective deployment of human action detection of untrimmed videos. Existing appearance-based video detection methods often struggle with limited…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Yannick Porto , Renato Martins , Thomas Chalumeau , Cedric Demonceaux

We introduce the Action Transformer model for recognizing and localizing human actions in video clips. We repurpose a Transformer-style architecture to aggregate features from the spatiotemporal context around the person whose actions we…

Computer Vision and Pattern Recognition · Computer Science 2019-05-20 Rohit Girdhar , João Carreira , Carl Doersch , Andrew Zisserman

Pedestrian attribute recognition (PAR) has received increasing attention because of its wide application in video surveillance and pedestrian analysis. Extracting robust feature representation is one of the key challenges in this task. The…

Computer Vision and Pattern Recognition · Computer Science 2023-04-17 Xinwen Fan , Yukang Zhang , Yang Lu , Hanzi Wang

Video action detection (VAD) is a formidable vision task that involves the localization and classification of actions within the spatial and temporal dimensions of a video clip. Among the myriad VAD architectures, two-stage VAD methods…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Seok Hwan Lee , Taein Son , Soo Won Seo , Jisong Kim , Jun Won Choi

This paper is a brief report to our submission to the VIPriors Action Recognition Challenge. Action recognition has attracted many researchers attention for its full application, but it is still challenging. In this paper, we study previous…

Computer Vision and Pattern Recognition · Computer Science 2020-07-17 Zhipeng Luo , Dawei Xu , Zhiguang Zhang

Active research is currently underway to enhance the efficiency of vision transformers (ViTs). Most studies have focused solely on effective token mixers, overlooking the potential relationship with normalization. To boost diverse feature…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Jongseong Bae , Susang Kim , Minsu Cho , Ha Young Kim

Face analysis has been studied from different angles to infer emotion, poses, shapes, and landmarks. Traditionally RGB cameras are used, yet for fine-grained tasks standard sensors might not be up to the task due to their latency, making it…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Luca Cultrera , Federico Becattini , Lorenzo Berlincioni , Claudio Ferrari , Alberto Del Bimbo

Action Detection is a complex task that aims to detect and classify human actions in video clips. Typically, it has been addressed by processing fine-grained features extracted from a video classification backbone. Recently, thanks to the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 Matteo Tomei , Lorenzo Baraldi , Simone Calderara , Simone Bronzin , Rita Cucchiara

This paper presents the first-rank solution for the Multi-Modal Action Recognition Challenge, part of the Multi-Modal Visual Pattern Recognition Workshop at the \acl{ICPR} 2024. The competition aimed to recognize human actions using a…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Anh-Kiet Duong , Petra Gomez-Krämer

Multi-label multi-view action recognition aims to recognize multiple concurrent or sequential actions from untrimmed videos captured by multiple cameras. Existing work has focused on multi-view action recognition in a narrow area with…

Computer Vision and Pattern Recognition · Computer Science 2024-10-21 Trung Thanh Nguyen , Yasutomo Kawanishi , Takahiro Komamizu , Ichiro Ide

In this paper, we develop a novel mobility-aware transformer-driven tiered structure (MASSFormer) based cooperative spectrum sensing method that effectively models the spatio-temporal dynamics of user movements. Unlike existing methods, our…

Information Theory · Computer Science 2024-09-27 Dimpal Janu , Sandeep Mandia , Kuldeep Singh , Sandeep Kumar

Multi-Camera Multi-Object Tracking (MC-MOT) utilizes information from multiple views to better handle problems with occlusion and crowded scenes. Recently, the use of graph-based approaches to solve tracking problems has become very…

Computer Vision and Pattern Recognition · Computer Science 2023-08-28 Cheng-Che Cheng , Min-Xuan Qiu , Chen-Kuo Chiang , Shang-Hong Lai

This paper studies how to introduce viewpoint-invariant feature representations that can help action recognition and detection. Although we have witnessed great progress of action recognition in the past decade, it remains challenging yet…

Computer Vision and Pattern Recognition · Computer Science 2020-12-07 Junwei Liang , Liangliang Cao , Xuehan Xiong , Ting Yu , Alexander Hauptmann

Ensuring traffic safety and preventing accidents is a critical goal in daily driving, where the advancement of computer vision technologies can be leveraged to achieve this goal. In this paper, we present a multi-view, multi-scale framework…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Yunsheng Ma , Liangqi Yuan , Amr Abdelraouf , Kyungtae Han , Rohit Gupta , Zihao Li , Ziran Wang