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New vision sensors, such as the Dynamic and Active-pixel Vision sensor (DAVIS), incorporate a conventional global-shutter camera and an event-based sensor in the same pixel array. These sensors have great potential for high-speed robotics…

Robotics · Computer Science 2017-11-10 Elias Mueggler , Henri Rebecq , Guillermo Gallego , Tobi Delbruck , Davide Scaramuzza

Event-based visual odometry is a specific branch of visual Simultaneous Localization and Mapping (SLAM) techniques, which aims at solving tracking and mapping subproblems (typically in parallel), by exploiting the special working principles…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Junkai Niu , Sheng Zhong , Xiuyuan Lu , Shaojie Shen , Guillermo Gallego , Yi Zhou

We present ActionXPose, a novel 2D pose-based algorithm for posture-level Human Action Recognition (HAR). The proposed approach exploits 2D human poses provided by OpenPose detector from RGB videos. ActionXPose aims to process poses data to…

Image and Video Processing · Electrical Eng. & Systems 2018-10-30 Federico Angelini , Zeyu Fu , Yang Long , Ling Shao , Syed Mohsen Naqvi

Event-based cameras are neuromorphic sensors capable of efficiently encoding visual information in the form of sparse sequences of events. Being biologically inspired, they are commonly used to exploit some of the computational and power…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Marco Cannici , Marco Ciccone , Andrea Romanoni , Matteo Matteucci

Event cameras are novel bio-inspired vision sensors that output pixel-level intensity changes in microsecond accuracy with a high dynamic range and low power consumption. Despite these advantages, event cameras cannot be directly applied to…

Computer Vision and Pattern Recognition · Computer Science 2022-11-02 Jinjin Gu , Jinan Zhou , Ringo Sai Wo Chu , Yan Chen , Jiawei Zhang , Xuanye Cheng , Song Zhang , Jimmy S. Ren

Recognizing human actions in video sequences, known as Human Action Recognition (HAR), is a challenging task in pattern recognition. While Convolutional Neural Networks (ConvNets) have shown remarkable success in image recognition, they are…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Nguyen Huu Phong , Bernardete Ribeiro

Low-light videos often exhibit spatiotemporal incoherent noise, leading to poor visibility and compromised performance across various computer vision applications. One significant challenge in enhancing such content using modern…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Nantheera Anantrasirichai , Ruirui Lin , Alexandra Malyugina , David Bull

In the last decade, Human Activity Recognition (HAR) has become a vibrant research area, especially due to the spread of electronic devices such as smartphones, smartwatches and video cameras present in our daily lives. In addition, the…

Signal Processing · Electrical Eng. & Systems 2020-11-20 Florenc Demrozi , Graziano Pravadelli , Azra Bihorac , Parisa Rashidi

In this article, we propose a novel LiDAR and event camera fusion modality for subterranean (SubT) environments for fast and precise object and human detection in a wide variety of adverse lighting conditions, such as low or no light,…

Accurate depth estimation under adverse night conditions has practical impact and applications, such as on autonomous driving and rescue robots. In this work, we studied monocular depth estimation at night time in which various adverse…

Computer Vision and Pattern Recognition · Computer Science 2023-02-09 Peilun Shi , Jiachuan Peng , Jianing Qiu , Xinwei Ju , Frank Po Wen Lo , Benny Lo

Event cameras are emerging imaging technology that offers advantages over conventional frame-based imaging sensors in dynamic range and sensing speed. Complementing the rich texture and color perception of traditional image frames, the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Peiqi Duan , Boyu Li , Yixin Yang , Hanyue Lou , Minggui Teng , Yi Ma , Boxin Shi

High dynamic range imaging (HDRI) for real-world dynamic scenes is challenging because moving objects may lead to hybrid degradation of low dynamic range and motion blur. Existing event-based approaches only focus on a separate task, while…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Li Xiaopeng , Zeng Zhaoyuan , Fan Cien , Zhao Chen , Deng Lei , Yu Lei

Event cameras are novel neuromorphic vision sensors with ultrahigh temporal resolution and low latency, both in the order of microseconds. Instead of image frames, event cameras generate an asynchronous event stream of per-pixel intensity…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Jinjian Li , Chuandong Guo , Li Su , Xiangyu Wang , Quan Hu

The broad scope of obstacle avoidance has led to many kinds of computer vision-based approaches. Despite its popularity, it is not a solved problem. Traditional computer vision techniques using cameras and depth sensors often focus on…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Celyn Walters , Simon Hadfield

Robustness to domain changes is a key capability for effective deployment of human action recognition systems in real-world scenarios, where action categories at inference can present important domain shifts or even unseen actions from…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Yannick Porto , Renato Martins , Thomas Chalumeau , Cedric Demonceaux

High dynamic range (HDR) imaging under extreme illumination remains challenging for conventional cameras due to overexposure. Event cameras provide microsecond temporal resolution and high dynamic range, while spatially varying exposure…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Pengju Sun , Banglei Guan , Jing Tao , Zhenbao Yu , Xuanyu Bai , Yang Shang , Qifeng Yu

Human Activity Recognition (HAR) is an ongoing research topic. It has applications in medical support, sports, fitness, social networking, human-computer interfaces, senior care, entertainment, surveillance, and the list goes on.…

Human-Computer Interaction · Computer Science 2021-11-11 Hamza Ali Imran , Saad Wazir , Usman Iftikhar , Usama Latif

Human Activity Recognition (HAR) has recently witnessed advancements with Transformer-based models. Especially, ActionFormer shows us a new perspectives for HAR in the sense that this approach gives us additional outputs which detect the…

Machine Learning · Computer Science 2025-05-28 Kunpeng Zhao , Asahi Miyazaki , Tsuyoshi Okita

Event cameras are a promising technology for activity recognition in dark environments due to their unique properties. However, real event camera datasets under low-lighting conditions are still scarce, which also limits the number of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Carlos Plou , Nerea Gallego , Alberto Sabater , Eduardo Montijano , Pablo Urcola , Luis Montesano , Ruben Martinez-Cantin , Ana C. Murillo

Event camera has significant advantages in capturing dynamic scene information while being prone to noise interference, particularly in challenging conditions like low threshold and low illumination. However, most existing research focuses…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Yuxing Duan , Shihan Peng , Lin Zhu , Wei Zhang , Yi Chang , Sheng Zhong , Luxin Yan