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Wearable cameras are becoming more and more popular in several applications, increasing the interest of the research community in developing approaches for recognizing actions from the first-person point of view. An open challenge in…

计算机视觉与模式识别 · 计算机科学 2020-12-08 Mirco Planamente , Andrea Bottino , Barbara Caputo

Activity detection from first-person videos (FPV) captured using a wearable camera is an active research field with potential applications in many sectors, including healthcare, law enforcement, and rehabilitation. State-of-the-art methods…

计算机视觉与模式识别 · 计算机科学 2020-08-20 Asif Shahriyar Sushmit , Partho Ghosh , Md. Abrar Istiak , Nayeeb Rashid , Ahsan Habib Akash , Taufiq Hasan

This paper addresses spatio-temporal localization of human actions in video. In order to localize actions in time, we propose a recurrent localization network (RecLNet) designed to model the temporal structure of actions on the level of…

计算机视觉与模式识别 · 计算机科学 2018-06-29 Guilhem Chéron , Anton Osokin , Ivan Laptev , Cordelia Schmid

Human action recognition involves the characterization of human actions through the automated analysis of video data and is integral in the development of smart computer vision systems. However, several challenges like dynamic backgrounds,…

计算机视觉与模式识别 · 计算机科学 2017-08-24 Jonti Talukdar , Bhavana Mehta

This paper addresses temporal sentence grounding. Previous works typically solve this task by learning frame-level video features and align them with the textual information. A major limitation of these works is that they fail to…

计算机视觉与模式识别 · 计算机科学 2022-01-04 Daizong Liu , Xiaoye Qu , Pan Zhou , Yang Liu

Temporal action localization is an important yet challenging problem. Given a long, untrimmed video consisting of multiple action instances and complex background contents, we need not only to recognize their action categories, but also to…

计算机视觉与模式识别 · 计算机科学 2017-06-14 Zheng Shou , Jonathan Chan , Alireza Zareian , Kazuyuki Miyazawa , Shih-Fu Chang

Various research studies indicate that action recognition performance highly depends on the types of motions being extracted and how accurate the human actions are represented. In this paper, we investigate different optical flow, and…

计算机视觉与模式识别 · 计算机科学 2023-12-19 Lei Wang , Piotr Koniusz

How to effectively explore spatial-temporal features is important for video colorization. Instead of stacking multiple frames along the temporal dimension or recurrently propagating estimated features that will accumulate errors or cannot…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Yixin Yang , Jiangxin Dong , Jinhui Tang , Jinshan Pan

In vision-based action recognition, spatio-temporal features from different modalities are used for recognizing activities. Temporal modeling is a long challenge of action recognition. However, there are limited methods such as pre-computed…

计算机视觉与模式识别 · 计算机科学 2023-02-06 Elham Shabaninia , Hossein Nezamabadi-pour , Fatemeh Shafizadegan

Real-time semantic segmentation plays a significant role in industry applications, such as autonomous driving, robotics and so on. It is a challenging task as both efficiency and performance need to be considered simultaneously. To address…

计算机视觉与模式识别 · 计算机科学 2019-11-19 Haiyang Si , Zhiqiang Zhang , Feifan Lv , Gang Yu , Feng Lu

In this paper, we introduce a novel network, called discriminative feature network (DFNet), to address the unsupervised video object segmentation task. To capture the inherent correlation among video frames, we learn discriminative features…

计算机视觉与模式识别 · 计算机科学 2020-08-05 Mingmin Zhen , Shiwei Li , Lei Zhou , Jiaxiang Shang , Haoan Feng , Tian Fang , Long Quan

We propose a novel transformer-style architecture called Global-Local Filter Network (GLFNet) for medical image segmentation and demonstrate its state-of-the-art performance. We replace the self-attention mechanism with a combination of…

计算机视觉与模式识别 · 计算机科学 2024-09-02 Athanasios Tragakis , Qianying Liu , Chaitanya Kaul , Swalpa Kumar Roy , Hang Dai , Fani Deligianni , Roderick Murray-Smith , Daniele Faccio

In recent years, many works in the video action recognition literature have shown that two stream models (combining spatial and temporal input streams) are necessary for achieving state of the art performance. In this paper we show the…

计算机视觉与模式识别 · 计算机科学 2021-10-22 Yinxiao Li , Zhichao Lu , Xuehan Xiong , Jonathan Huang

We propose Sequential Feature Filtering Classifier (FFC), a simple but effective classifier for convolutional neural networks (CNNs). With sequential LayerNorm and ReLU, FFC zeroes out low-activation units and preserves high-activation…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Minseok Seo , Jaemin Lee , Jongchan Park , Dong-Geol Choi

Training of Convolutional Neural Networks (CNNs) on long video sequences is computationally expensive due to the substantial memory requirements and the massive number of parameters that deep architectures demand. Early fusion of video…

计算机视觉与模式识别 · 计算机科学 2017-04-07 Jue Wang , Anoop Cherian , Fatih Porikli

In this work, we aim for temporally consistent semantic segmentation throughout frames in a video. Many semantic segmentation algorithms process images individually which leads to an inconsistent scene interpretation due to illumination…

计算机视觉与模式识别 · 计算机科学 2020-08-31 Manuel Rebol , Patrick Knöbelreiter

Effective and Efficient spatio-temporal modeling is essential for action recognition. Existing methods suffer from the trade-off between model performance and model complexity. In this paper, we present a novel Spatio-Temporal Hybrid…

计算机视觉与模式识别 · 计算机科学 2020-03-19 Xu Li , Jingwen Wang , Lin Ma , Kaihao Zhang , Fengzong Lian , Zhanhui Kang , Jinjun Wang

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…

计算机视觉与模式识别 · 计算机科学 2020-11-09 Daniel Cores , Víctor M. Brea , Manuel Mucientes

Segmenting primary objects in a video is an important yet challenging problem in computer vision, as it exhibits various levels of foreground/background ambiguities. To reduce such ambiguities, we propose a novel formulation via exploiting…

计算机视觉与模式识别 · 计算机科学 2018-11-26 Jia Li , Junjie Wu , Anlin Zheng , Yafei Song , Yu Zhang , Xiaowu Chen

Modern mobile neural networks with a reduced number of weights and parameters do a good job with image classification tasks, but even they may be too complex to be implemented in an FPGA for video processing tasks. The article proposes…

计算机视觉与模式识别 · 计算机科学 2020-12-04 Roman Solovyev , Alexander Kustov , Dmitry Telpukhov , Vladimir Rukhlov , Alexandr Kalinin