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Related papers: Fine-Grained Action Detection with RGB and Pose In…

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Accurate detection of fingertips in depth image is critical for human-computer interaction. In this paper, we present a novel two-stream convolutional neural network (CNN) for RGB-D fingertip detection. Firstly edge image is extracted from…

Computer Vision and Pattern Recognition · Computer Science 2016-12-26 Hengkai Guo , Guijin Wang , Xinghao Chen

Action recognition is a key technology in building interactive metaverses. With the rapid development of deep learning, methods in action recognition have also achieved great advancement. Researchers design and implement the backbones…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Zixuan Tang , Youjun Zhao , Yuhang Wen , Mengyuan Liu

Most two-stream action recognition networks apply the same convolutional backbone to both RGB and optical flow streams, ignoring the fact that the two modalities have fundamentally different structural properties. Optical flow captures…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Md. Afzalur Rahaman , Tahmid Rahman

In this work, we present a framework based on multi-stream convolutional neural networks (CNNs) for group activity recognition. Streams of CNNs are separately trained on different modalities and their predictions are fused at the end. Each…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Sina Mokhtarzadeh Azar , Mina Ghadimi Atigh , Ahmad Nickabadi

In this paper, we propose a novel coarse-to-fine continuous pose diffusion method to enhance the precision of pick-and-place operations within robotic manipulation tasks. Leveraging the capabilities of diffusion networks, we facilitate the…

Robotics · Computer Science 2025-02-18 Shih-Wei Guo , Tsu-Ching Hsiao , Yu-Lun Liu , Chun-Yi Lee

Analyzing videos of human actions involves understanding the temporal relationships among video frames. State-of-the-art action recognition approaches rely on traditional optical flow estimation methods to pre-compute motion information for…

Computer Vision and Pattern Recognition · Computer Science 2018-10-31 Yi Zhu , Zhenzhong Lan , Shawn Newsam , Alexander G. Hauptmann

Estimating depth from a single RGB image is an ill-posed and inherently ambiguous problem. State-of-the-art deep learning methods can now estimate accurate 2D depth maps, but when the maps are projected into 3D, they lack local detail and…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Jun Li , Reinhard Klein , Angela Yao

We present a neural network TTNet aimed at real-time processing of high-resolution table tennis videos, providing both temporal (events spotting) and spatial (ball detection and semantic segmentation) data. This approach gives core…

Computer Vision and Pattern Recognition · Computer Science 2020-04-22 Roman Voeikov , Nikolay Falaleev , Ruslan Baikulov

This paper presents the baseline method proposed for the Sports Video task part of the MediaEval 2022 benchmark. This task proposes two subtasks: stroke classification from trimmed videos, and stroke detection from untrimmed videos. This…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 Pierre-Etienne Martin

Recently, pose-based action recognition has gained more and more attention due to the better performance compared with traditional appearance-based methods. However, there still exist two problems to be further solved. First, existing…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Wei Wang , Jinjin Zhang , Chenyang Si , Liang Wang

With the rapid advancements in deep learning, computer vision tasks have seen significant improvements, making two-stream neural networks a popular focus for video based action recognition. Traditional models using RGB and optical flow…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Song-Jiang Lai , Tsun-Hin Cheung , Ka-Chun Fung , Tian-Shan Liu , Kin-Man Lam

In this paper we present a three-stream algorithm for real-time action recognition and a new dataset of handwash videos, with the intent of aligning action recognition with real-world constraints to yield effective conclusions. A…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Akash Nagaraj , Mukund Sood , Chetna Sureka , Gowri Srinivasa

Automatically detecting violence from surveillance footage is a subset of activity recognition that deserves special attention because of its wide applicability in unmanned security monitoring systems, internet video filtration, etc. In…

Computer Vision and Pattern Recognition · Computer Science 2021-10-08 Zahidul Islam , Mohammad Rukonuzzaman , Raiyan Ahmed , Md. Hasanul Kabir , Moshiur Farazi

Deep convolutional networks have achieved great success for object recognition in still images. However, for action recognition in videos, the improvement of deep convolutional networks is not so evident. We argue that there are two reasons…

Computer Vision and Pattern Recognition · Computer Science 2015-07-09 Limin Wang , Yuanjun Xiong , Zhe Wang , Yu Qiao

We present a 3D Convolutional Neural Networks (CNNs) based single shot detector for spatial-temporal action detection tasks. Our model includes: (1) two short-term appearance and motion streams, with single RGB and optical flow image input…

Computer Vision and Pattern Recognition · Computer Science 2019-08-23 Pengfei Zhang , Yu Cao , Benyuan Liu

In skeleton-based action recognition, graph convolutional networks (GCNs), which model the human body skeletons as spatiotemporal graphs, have achieved remarkable performance. However, in existing GCN-based methods, the topology of the…

Computer Vision and Pattern Recognition · Computer Science 2019-07-11 Lei Shi , Yifan Zhang , Jian Cheng , Hanqing Lu

In this paper, we introduce Coarse-Fine Networks, a two-stream architecture which benefits from different abstractions of temporal resolution to learn better video representations for long-term motion. Traditional Video models process…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Kumara Kahatapitiya , Michael S. Ryoo

Recently, deep learning has been successfully applied to robotic grasp detection. Based on convolutional neural networks (CNNs), there have been lots of end-to-end detection approaches. But end-to-end approaches have strict requirements for…

Robotics · Computer Science 2020-12-01 Zhe Chu , Mengkai Hu , Xiangyu Chen

It remains a challenge to efficiently extract spatialtemporal information from skeleton sequences for 3D human action recognition. Although most recent action recognition methods are based on Recurrent Neural Networks which present…

Computer Vision and Pattern Recognition · Computer Science 2017-06-08 Hong Liu , Juanhui Tu , Mengyuan Liu

With the advances in capturing 2D or 3D skeleton data, skeleton-based action recognition has received an increasing interest over the last years. As skeleton data is commonly represented by graphs, graph convolutional networks have been…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Shijie Li , Jinhui Yi , Yazan Abu Farha , Juergen Gall