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Action recognition in videos has attracted a lot of attention in the past decade. In order to learn robust models, previous methods usually assume videos are trimmed as short sequences and require ground-truth annotations of each video…

计算机视觉与模式识别 · 计算机科学 2019-02-21 Xiao-Yu Zhang , Haichao Shi , Changsheng Li , Kai Zheng , Xiaobin Zhu , Lixin Duan

Sign language recognition (SLR) has recently achieved a breakthrough in performance thanks to deep neural networks trained on large annotated sign datasets. Of the many different sign languages, these annotated datasets are only available…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Ahmet Alp Kindiroglu , Ozgur Kara , Ogulcan Ozdemir , Lale Akarun

Video summarization aims to generate a concise representation of a video, capturing its essential content and key moments while reducing its overall length. Although several methods employ attention mechanisms to handle long-term…

计算机视觉与模式识别 · 计算机科学 2024-05-22 Jaewon Son , Jaehun Park , Kwangsu Kim

Labeled data is a critical resource for training and evaluating machine learning models. However, many real-life datasets are only partially labeled. We propose a semi-supervised machine learning training strategy to improve event detection…

计算机视觉与模式识别 · 计算机科学 2022-10-05 Florian Dubost , Erin Hong , Nandita Bhaskhar , Siyi Tang , Daniel Rubin , Christopher Lee-Messer

With the rapid increase in digital technologies, most fields of study include recognition of human activity and intention recognition, which are essential in smart environments. In this study, we equipped the activity recognition system…

计算机视觉与模式识别 · 计算机科学 2021-08-05 Sahar Darafsh , Saeed Shiry Ghidary , Morteza Saheb Zamani

The primary objective of human activity recognition (HAR) is to infer ongoing human actions from sensor data, a task that finds broad applications in health monitoring, safety protection, and sports analysis. Despite proliferating research,…

计算机视觉与模式识别 · 计算机科学 2025-07-14 Hang Xiao , Ying Yu , Jiarui Li , Zhifan Yang , Haotian Tang , Hanyu Liu , Chao Li

Understanding action recognition in egocentric videos has emerged as a vital research topic with numerous practical applications. With the limitation in the scale of egocentric data collection, learning robust deep learning-based action…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Thanh-Dat Truong , Khoa Luu

Few-shot action recognition (FSAR) aims to learn a model capable of identifying novel actions in videos using only a few examples. In assuming the base dataset seen during meta-training and novel dataset used for evaluation can come from…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Georgia Markham , Mehala Balamurali , Andrew J. Hill

Real-time video surveillance, through CCTV camera systems has become essential for ensuring public safety which is a priority today. Although CCTV cameras help a lot in increasing security, these systems require constant human interaction…

计算机视觉与模式识别 · 计算机科学 2023-02-23 Labib Ahmed Siddique , Rabita Junhai , Tanzim Reza , Salman Sayeed Khan , Tanvir Rahman

This work presents a lightweight super-resolution (LiteSR) neural network for depth and intensity images acquired from a consumer-grade single-photon avalanche diode (SPAD) array with a 48x32 spatial resolution. The proposed framework…

图像与视频处理 · 电气工程与系统科学 2026-03-31 Zhenya Zang , Xingda Li , David Day Uei Li

Few-shot learning aims to recognize instances from novel classes with few labeled samples, which has great value in research and application. Although there has been a lot of work in this area recently, most of the existing work is based on…

计算机视觉与模式识别 · 计算机科学 2020-10-14 Congqi Cao , Yajuan Li , Qinyi Lv , Peng Wang , Yanning Zhang

Event cameras sense the intensity changes asynchronously and produce event streams with high dynamic range and low latency. This has inspired research endeavors utilizing events to guide the challenging video superresolution (VSR) task. In…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Yunfan Lu , Zipeng Wang , Minjie Liu , Hongjian Wang , Lin Wang

Human Activity Recognition (HAR) using wearable sensor data has become a central task in mobile computing, healthcare, and human-computer interaction. Despite the success of traditional deep learning models such as CNNs and RNNs, they often…

机器学习 · 计算机科学 2025-05-27 Yunbo Liu , Xukui Qin , Yifan Gao , Xiang Li , Chengwei Feng

Unlike images or videos data which can be easily labeled by human being, sensor data annotation is a time-consuming process. However, traditional methods of human activity recognition require a large amount of such strictly labeled data for…

机器学习 · 计算机科学 2019-07-02 Kun Wang , Jun He , Lei Zhang

In this paper, we introduce a deep learning solution for video activity recognition that leverages an innovative combination of convolutional layers with a linear-complexity attention mechanism. Moreover, we introduce a novel quantization…

计算机视觉与模式识别 · 计算机科学 2025-05-27 Gabriele Lagani , Fabrizio Falchi , Claudio Gennaro , Giuseppe Amato

Super-Resolution from a single motion Blurred image (SRB) is a severely ill-posed problem due to the joint degradation of motion blurs and low spatial resolution. In this paper, we employ events to alleviate the burden of SRB and propose an…

计算机视觉与模式识别 · 计算机科学 2023-02-28 Lei Yu , Bishan Wang , Xiang Zhang , Haijian Zhang , Wen Yang , Jianzhuang Liu , Gui-Song Xia

Temporal Action Detection (TAD) is fundamental yet challenging for real-world video applications. Leveraging the unique benefits of transformers, various DETR-based approaches have been adopted in TAD. However, it has recently been…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Jihwan Kim , Miso Lee , Cheol-Ho Cho , Jihyun Lee , Jae-Pil Heo

In recent years, the Transformer architecture has shown its superiority in the video-based person re-identification task. Inspired by video representation learning, these methods mainly focus on designing modules to extract informative…

计算机视觉与模式识别 · 计算机科学 2023-01-03 Ziyi Tang , Ruimao Zhang , Zhanglin Peng , Jinrui Chen , Liang Lin

This paper explores an efficient solution for Space-time Super-Resolution, aiming to generate High-resolution Slow-motion videos from Low Resolution and Low Frame rate videos. A simplistic solution is the sequential running of Video Super…

图像与视频处理 · 电气工程与系统科学 2021-06-09 Saikat Dutta , Nisarg A. Shah , Anurag Mittal

This paper summarizes the TinyAction challenge which was organized in ActivityNet workshop at CVPR 2021. This challenge focuses on recognizing real-world low-resolution activities present in videos. Action recognition task is currently…

计算机视觉与模式识别 · 计算机科学 2021-07-27 Praveen Tirupattur , Aayush J Rana , Tushar Sangam , Shruti Vyas , Yogesh S Rawat , Mubarak Shah