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This paper addresses the problem of how to exploit spatio-temporal information available in videos to improve the object detection precision. We propose a two stage object detector called FANet based on short-term spatio-temporal feature…

Computer Vision and Pattern Recognition · Computer Science 2020-11-09 Daniel Cores , Víctor M. Brea , Manuel Mucientes

Deep neural network is an effective choice to automatically recognize human actions utilizing data from various wearable sensors. These networks automate the process of feature extraction relying completely on data. However, various noises…

Signal Processing · Electrical Eng. & Systems 2021-01-05 Tanvir Mahmud , A. Q. M. Sazzad Sayyed , Shaikh Anowarul Fattah , Sun-Yuan Kung

Video super-resolution, which aims at producing a high-resolution video from its corresponding low-resolution version, has recently drawn increasing attention. In this work, we propose a novel method that can effectively incorporate…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Takashi Isobe , Songjiang Li , Xu Jia , Shanxin Yuan , Gregory Slabaugh , Chunjing Xu , Ya-Li Li , Shengjin Wang , Qi Tian

In Intelligent Transportation System, real-time systems that monitor and analyze road users become increasingly critical as we march toward the smart city era. Vision-based frameworks for Object Detection, Multiple Object Tracking, and…

Computer Vision and Pattern Recognition · Computer Science 2019-06-02 Xiaohui Huang , Pan He , Anand Rangarajan , Sanjay Ranka

Abnormal driving behaviour is one of the leading cause of terrible traffic accidents endangering human life. Therefore, study on driving behaviour surveillance has become essential to traffic security and public management. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 Yaocong Hu , MingQi Lu , Xiaobo Lu

Interpreting human actions requires understanding the spatial and temporal context of the scenes. State-of-the-art action detectors based on Convolutional Neural Network (CNN) have demonstrated remarkable results by adopting two-stream or…

Computer Vision and Pattern Recognition · Computer Science 2021-03-01 Yu Liu , Fan Yang , Dominique Ginhac

The current main stream methods formulate their video saliency mainly from two independent venues, i.e., the spatial and temporal branches. As a complementary component, the main task for the temporal branch is to intermittently focus the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Chenglizhao Chen , Guotao Wang , Chong Peng , Dingwen Zhang , Yuming Fang , Hong Qin

Most existing real-time deep models trained with each frame independently may produce inconsistent results across the temporal axis when tested on a video sequence. A few methods take the correlations in the video sequence into…

Computer Vision and Pattern Recognition · Computer Science 2022-02-28 Yifan Liu , Chunhua Shen , Changqian Yu , Jingdong Wang

The state of the art in video understanding suffers from two problems: (1) The major part of reasoning is performed locally in the video, therefore, it misses important relationships within actions that span several seconds. (2) While there…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 Mohammadreza Zolfaghari , Kamaljeet Singh , Thomas Brox

This paper proposes a novel multi-modal transformer network for detecting actions in untrimmed videos. To enrich the action features, our transformer network utilizes a new multi-modal attention mechanism that computes the correlations…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Matthew Korban , Scott T. Acton , Peter Youngs

Conventionally, spatiotemporal modeling network and its complexity are the two most concentrated research topics in video action recognition. Existing state-of-the-art methods have achieved excellent accuracy regardless of the complexity…

Computer Vision and Pattern Recognition · Computer Science 2021-01-06 Wenhao Wu , Dongliang He , Tianwei Lin , Fu Li , Chuang Gan , Errui Ding

Classifying videos according to content semantics is an important problem with a wide range of applications. In this paper, we propose a hybrid deep learning framework for video classification, which is able to model static spatial…

Computer Vision and Pattern Recognition · Computer Science 2015-04-08 Zuxuan Wu , Xi Wang , Yu-Gang Jiang , Hao Ye , Xiangyang Xue

Deep convolutional neural networks (CNNs) are nowadays achieving significant leaps in different pattern recognition tasks including action recognition. Current CNNs are increasingly deeper, data-hungrier and this makes their success…

Computer Vision and Pattern Recognition · Computer Science 2019-05-03 Ahmed Mazari , Hichem Sahbi

Recent years have witnessed the significant progress of action recognition task with deep networks. However, most of current video networks require large memory and computational resources, which hinders their applications in practice.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-16 Haisheng Su , Jing Su , Dongliang Wang , Weihao Gan , Wei Wu , Mengmeng Wang , Junjie Yan , Yu Qiao

Foundation models (FMs) are large neural networks trained on broad datasets, excelling in downstream tasks with minimal fine-tuning. Human activity recognition in video has advanced with FMs, driven by competition among different…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Thinesh Thiyakesan Ponbagavathi , Kunyu Peng , Alina Roitberg

We consider two less-emphasized temporal properties of video: 1. Temporal cues are fine-grained; 2. Temporal modeling needs reasoning. To tackle both problems at once, we exploit approximated bilinear modules (ABMs) for temporal modeling.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Xinqi Zhu , Chang Xu , Langwen Hui , Cewu Lu , Dacheng Tao

This paper describes our solution for the video recognition task of ActivityNet Kinetics challenge that ranked the 1st place. Most of existing state-of-the-art video recognition approaches are in favor of an end-to-end pipeline. One…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Yunlong Bian , Chuang Gan , Xiao Liu , Fu Li , Xiang Long , Yandong Li , Heng Qi , Jie Zhou , Shilei Wen , Yuanqing Lin

This paper is the first work to perform spatio-temporal mapping of human activity using the visual content of geo-tagged videos. We utilize a recent deep-learning based video analysis framework, termed hidden two-stream networks, to…

Computer Vision and Pattern Recognition · Computer Science 2017-11-30 Yi Zhu , Sen Liu , Shawn Newsam

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

Temporal interpolation often plays a crucial role to learn meaningful representations in dynamic scenes. In this paper, we propose a novel method to train spatiotemporal neural radiance fields of dynamic scenes based on temporal…

Computer Vision and Pattern Recognition · Computer Science 2023-03-30 Sungheon Park , Minjung Son , Seokhwan Jang , Young Chun Ahn , Ji-Yeon Kim , Nahyup Kang