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Real-time human activity recognition plays an essential role in real-world human-centered robotics applications, such as assisted living and human-robot collaboration. Although previous methods based on skeletal data to encode human poses…

Computer Vision and Pattern Recognition · Computer Science 2020-04-08 Brian Reily , Qingzhao Zhu , Christopher Reardon , Hao Zhang

The reliable detection of unauthorized individuals in safety-critical industrial indoor spaces is crucial to avoid plant shutdowns, property damage, and personal hazards. Conventional vision-based methods that use deep-learning approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Dennis Basile , Dennis Sprute , Helene Dörksen , Holger Flatt

Feature matching is a cornerstone task in computer vision, essential for applications such as image retrieval, stereo matching, 3D reconstruction, and SLAM. This survey comprehensively reviews modality-based feature matching, exploring…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Weide Liu , Wei Zhou , Jun Liu , Ping Hu , Jun Cheng , Jungong Han , Weisi Lin

This paper focuses on the task of 4D shape reconstruction from a sequence of point clouds. Despite the recent success achieved by extending deep implicit representations into 4D space, it is still a great challenge in two respects, i.e. how…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Jiapeng Tang , Dan Xu , Kui Jia , Lei Zhang

Human Activity Recognition (HAR) constitutes one of the most important tasks for wearable and mobile sensing given its implications in human well-being and health monitoring. Motivated by the limitations of labeled datasets in HAR,…

Machine Learning · Computer Science 2021-02-12 Chi Ian Tang , Ignacio Perez-Pozuelo , Dimitris Spathis , Cecilia Mascolo

Zero-shot human skeleton-based action recognition aims to construct a model that can recognize actions outside the categories seen during training. Previous research has focused on aligning sequences' visual and semantic spatial…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Haojun Xu , Yan Gao , Jie Li , Xinbo Gao

Motion retrieval is crucial for motion acquisition, offering superior precision, realism, controllability, and editability compared to motion generation. Existing approaches leverage contrastive learning to construct a unified embedding…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Shiyao Yu , Zi-An Wang , Kangning Yin , Zheng Tian , Mingyuan Zhang , Weixin Si , Shihao Zou

Video-based human pose estimation remains challenged by motion blur, occlusion, and complex spatiotemporal dynamics. Existing methods often rely on heatmaps or implicit spatio-temporal feature aggregation, which limits joint topology…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Quang Dang Huynh , Xuefei Yin , Andrew Busch , Hugo G. Espinosa , Alan Wee-Chung Liew , Matthew T. O. Worsey , Yanming Zhu

Modeling scene geometry using implicit neural representation has revealed its advantages in accuracy, flexibility, and low memory usage. Previous approaches have demonstrated impressive results using color or depth images but still have…

Robotics · Computer Science 2023-03-01 Dongyu Yan , Xiaoyang Lyu , Jieqi Shi , Yi Lin

Video Moment Retrieval (MR) and Highlight Detection (HD) aim to pinpoint specific moments and assess clip-wise relevance based on the text query. While DETR-based joint frameworks have made significant strides, there remains untapped…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Hongxu Ma , Guanshuo Wang , Fufu Yu , Qiong Jia , Shouhong Ding

This paper proposes a human-aware deblurring model that disentangles the motion blur between foreground (FG) humans and background (BG). The proposed model is based on a triple-branch encoder-decoder architecture. The first two branches are…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Ziyi Shen , Wenguan Wang , Xiankai Lu , Jianbing Shen , Haibin Ling , Tingfa Xu , Ling Shao

Masked image modeling (MIM) as pre-training is shown to be effective for numerous vision downstream tasks, but how and where MIM works remain unclear. In this paper, we compare MIM with the long-dominant supervised pre-trained models from…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Zhenda Xie , Zigang Geng , Jingcheng Hu , Zheng Zhang , Han Hu , Yue Cao

Human activity recognition (HAR) by wearable sensor devices embedded in the Internet of things (IOT) can play a significant role in remote health monitoring and emergency notification, to provide healthcare of higher standards. The purpose…

Machine Learning · Computer Science 2022-01-24 M. Abid , A. Khabou , Y. Ouakrim , H. Watel , S. Chemkhi , A. Mitiche , A. Benazza-Benyahia , N. Mezghani

This paper attempts at improving the accuracy of Human Action Recognition (HAR) by fusion of depth and inertial sensor data. Firstly, we transform the depth data into Sequential Front view Images(SFI) and fine-tune the pre-trained AlexNet…

Computer Vision and Pattern Recognition · Computer Science 2020-08-25 Zeeshan Ahmad , Naimul Khan

We introduce a new deep learning method for point cloud comparison. Our approach, named Deep Point Cloud Distance (DPDist), measures the distance between the points in one cloud and the estimated surface from which the other point cloud is…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Dahlia Urbach , Yizhak Ben-Shabat , Michael Lindenbaum

Sensor-based Human Activity Recognition (HAR) is a core technology that enables intelligent systems to perceive and interact with their environment. However, multimodal HAR systems still encounter key challenges, such as difficulties in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Panpan Ji , Junni Song , Yifan Lu , Hang Xiao , Hanyu Liu , Chao Li

Visual and lidar Simultaneous Localization and Mapping (SLAM) algorithms benefit from the Inertial Measurement Unit (IMU) modality. The high-rate inertial data complement the other lower-rate modalities. Moreover, in the absence of constant…

Robotics · Computer Science 2022-03-28 Vladimír Kubelka , Maxime Vaidis , François Pomerleau

Gait recognition is an emerging biometric technology that enables non-intrusive and hard-to-spoof human identification. However, most existing methods are confined to short-range, unimodal settings and fail to generalize to long-range and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Zhiyang Lu , Wen Jiang , Tianren Wu , Zhichao Wang , Changwang Zhang , Siqi Shen , Ming Cheng

Pedestrian tracking has long been considered an important problem, especially in security applications. Previously,many approaches have been proposed with various types of sensors. One popular method is Pedestrian Dead Reckoning(PDR) [1]…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Mahdi Elhousni , Xinming Huang

Fusion-based place recognition is an emerging technique jointly utilizing multi-modal perception data, to recognize previously visited places in GPS-denied scenarios for robots and autonomous vehicles. Recent fusion-based place recognition…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Jingyi Xu , Junyi Ma , Qi Wu , Zijie Zhou , Yue Wang , Xieyuanli Chen , Ling Pei
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