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Dynamic Textures (DTs) are sequences of images of moving scenes that exhibit certain stationarity properties in time such as smoke, vegetation and fire. The analysis of DT is important for recognition, segmentation, synthesis or retrieval…

Computer Vision and Pattern Recognition · Computer Science 2017-03-17 Vincent Andrearczyk , Paul F. Whelan

Due to the fast processing-speed and robustness it can achieve, skeleton-based action recognition has recently received the attention of the computer vision community. The recent Convolutional Neural Network (CNN)-based methods have shown…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Han Chen , Yifan Jiang , Hanseok Ko

In this paper, we study the problem of procedure planning in instructional videos, which can be seen as a step towards enabling autonomous agents to plan for complex tasks in everyday settings such as cooking. Given the current visual…

Computer Vision and Pattern Recognition · Computer Science 2020-04-14 Chien-Yi Chang , De-An Huang , Danfei Xu , Ehsan Adeli , Li Fei-Fei , Juan Carlos Niebles

In this paper, we propose deformable deep convolutional neural networks for generic object detection. This new deep learning object detection framework has innovations in multiple aspects. In the proposed new deep architecture, a new…

Computer Vision and Pattern Recognition · Computer Science 2015-06-03 Wanli Ouyang , Xiaogang Wang , Xingyu Zeng , Shi Qiu , Ping Luo , Yonglong Tian , Hongsheng Li , Shuo Yang , Zhe Wang , Chen-Change Loy , Xiaoou Tang

The video and action classification have extremely evolved by deep neural networks specially with two stream CNN using RGB and optical flow as inputs and they present outstanding performance in terms of video analysis. One of the…

Computer Vision and Pattern Recognition · Computer Science 2016-09-05 Ali Diba , Ali Mohammad Pazandeh , Luc Van Gool

Video-based vehicle detection has received considerable attention over the last ten years and there are many deep learning based detection methods which can be applied to it. However, these methods are devised for still images and applying…

Computer Vision and Pattern Recognition · Computer Science 2018-01-16 Suichan Li

Existing action localization approaches adopt shallow temporal convolutional networks (\ie, TCN) on 1D feature map extracted from video frames. In this paper, we empirically find that stacking more conventional temporal convolution layers…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Xin Li , Tianwei Lin , Xiao Liu , Chuang Gan , Wangmeng Zuo , Chao Li , Xiang Long , Dongliang He , Fu Li , Shilei Wen

Object detection in videos has drawn increasing attention recently with the introduction of the large-scale ImageNet VID dataset. Different from object detection in static images, temporal information in videos is vital for object…

Computer Vision and Pattern Recognition · Computer Science 2018-01-10 Kai Kang , Hongsheng Li , Tong Xiao , Wanli Ouyang , Junjie Yan , Xihui Liu , Xiaogang Wang

Detection Transformer (DETR) and Deformable DETR have been proposed to eliminate the need for many hand-designed components in object detection while demonstrating good performance as previous complex hand-crafted detectors. However, their…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Qianyu Zhou , Xiangtai Li , Lu He , Yibo Yang , Guangliang Cheng , Yunhai Tong , Lizhuang Ma , Dacheng Tao

Understanding human behavior and activity facilitates advancement of numerous real-world applications, and is critical for video analysis. Despite the progress of action recognition algorithms in trimmed videos, the majority of real-world…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Elahe Vahdani , Yingli Tian

This paper describes a network that captures multimodal correlations over arbitrary timestamps. The proposed scheme operates as a complementary, extended network over a multimodal convolutional neural network (CNN). Spatial and temporal…

Computer Vision and Pattern Recognition · Computer Science 2019-12-17 Novanto Yudistira , Takio Kurita

Action recognition from well-segmented 3D skeleton video has been intensively studied. However, due to the difficulty in representing the 3D skeleton video and the lack of training data, action detection from streaming 3D skeleton video…

Computer Vision and Pattern Recognition · Computer Science 2017-04-20 Bo Li , Huahui Chen , Yucheng Chen , Yuchao Dai , Mingyi He

Current state-of-the-art methods solve spatiotemporal action localisation by extending 2D anchors to 3D-cuboid proposals on stacks of frames, to generate sets of temporally connected bounding boxes called \textit{action micro-tubes}.…

Image and Video Processing · Electrical Eng. & Systems 2018-08-02 Gurkirt Singh , Suman Saha , Fabio Cuzzolin

Deep Convolution Neural Networks (CNNs) have shown impressive performance in various vision tasks such as image classification, object detection and semantic segmentation. For object detection, particularly in still images, the performance…

Computer Vision and Pattern Recognition · Computer Science 2017-03-07 Kai Kang , Wanli Ouyang , Hongsheng Li , Xiaogang Wang

This paper studies introducing viewpoint invariant feature representations in existing action recognition architecture. Despite significant progress in action recognition, efficiently handling geometric variations in large-scale datasets…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Jinhui Ye , Junwei Liang

Current state-of-the-art action detection systems are tailored for offline batch-processing applications. However, for online applications like human-robot interaction, current systems fall short, either because they only detect one action…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Harkirat Singh Behl , Michael Sapienza , Gurkirt Singh , Suman Saha , Fabio Cuzzolin , Philip H. S. Torr

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

Most current pipelines for spatio-temporal action localization connect frame-wise or clip-wise detection results to generate action proposals, where only local information is exploited and the efficiency is hindered by dense per-frame…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Yuxi Li , Weiyao Lin , John See , Ning Xu , Shugong Xu , Ke Yan , Cong Yang

Stable consumer electronic systems can assist traffic better. Good traffic consumer electronic systems require collaborative work between traffic algorithms and hardware. However, performance of popular traffic algorithms containing vehicle…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Chunwei Tian , Kai Liu , Bob Zhang , Zhixiang Huang , Chia-Wen Lin , David Zhang

Encouraged by the success of Convolutional Neural Networks (CNNs) in image classification, recently much effort is spent on applying CNNs to video based action recognition problems. One challenge is that video contains a varying number of…

Computer Vision and Pattern Recognition · Computer Science 2015-04-17 Peng Wang , Yuanzhouhan Cao , Chunhua Shen , Lingqiao Liu , Heng Tao Shen