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The recognition of human actions in videos is one of the most active research fields in computer vision. The canonical approach consists in a more or less complex preprocessing stages of the raw video data, followed by a relatively simple…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Enrico Picco , Piotr Antonik , Serge Massar

High-speed obstacle avoidance of uncrewed aerial vehicles (UAVs) in cluttered environments is a significant challenge. Existing UAV planning and obstacle avoidance systems can only fly at moderate speeds or at high speeds over empty or…

Robotics · Computer Science 2025-05-26 Minghao Lu , Xiyu Fan , Bowen Xu , Zexuan Yan , Rui Peng , Han Chen , Lixian Zhang , Peng Lu

Detecting and recognizing human action in videos with crowded scenes is a challenging problem due to the complex environment and diversity events. Prior works always fail to deal with this problem in two aspects: (1) lacking utilizing…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Li Yuan , Yichen Zhou , Shuning Chang , Ziyuan Huang , Yunpeng Chen , Xuecheng Nie , Tao Wang , Jiashi Feng , Shuicheng Yan

Robots typically possess sensors of different modalities, such as colour cameras, inertial measurement units, and 3D laser scanners. Often, solving a particular problem becomes easier when more than one modality is used. However, while…

Computer Vision and Pattern Recognition · Computer Science 2017-01-10 Charika De Alvis , Lionel Ott , Fabio Ramos

Most existing video tasks related to "human" focus on the segmentation of salient humans, ignoring the unspecified others in the video. Few studies have focused on segmenting and tracking all humans in a complex video, including pedestrians…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Ran Yu , Chenyu Tian , Weihao Xia , Xinyuan Zhao , Haoqian Wang , Yujiu Yang

Dance experts often view dance as a hierarchy of information, spanning low-level (raw images, image sequences), mid-levels (human poses and bodypart movements), and high-level (dance genre). We propose a Hierarchical Dance Video Recognition…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Xiaodan Hu , Narendra Ahuja

Many LiDAR place recognition systems have been developed and tested specifically for urban driving scenarios. Their performance in natural environments such as forests and woodlands have been studied less closely. In this paper, we analyzed…

Robotics · Computer Science 2024-09-02 Haedam Oh , Nived Chebrolu , Matias Mattamala , Leonard Freißmuth , Maurice Fallon

This chapter aims to aid the development of Cyber-Physical Systems (CPS) in automated understanding of events and activities in various applications of video-surveillance. These events are mostly captured by drones, CCTVs or novice and…

Computer Vision and Pattern Recognition · Computer Science 2021-11-04 Swarnabja Bhaumik , Prithwish Jana , Partha Pratim Mohanta

Primary object segmentation plays an important role in understanding videos generated by unmanned aerial vehicles. In this paper, we propose a large-scale dataset with 500 aerial videos and manually annotated primary objects. To the best of…

Computer Vision and Pattern Recognition · Computer Science 2018-11-06 Jia Li , Pengcheng Yuan , Daxin Gu , Yonghong Tian

Scene classification is a fundamental perception task for environmental understanding in today's robotics. In this paper, we have attempted to exploit the use of popular machine learning technique of deep learning to enhance scene…

Computer Vision and Pattern Recognition · Computer Science 2015-09-23 Yiyi Liao , Sarath Kodagoda , Yue Wang , Lei Shi , Yong Liu

Visual localization techniques often comprise a hierarchical localization pipeline, with a visual place recognition module used as a coarse localizer to initialize a pose refinement stage. While improving the pose refinement step has been…

Computer Vision and Pattern Recognition · Computer Science 2021-05-10 Ming Xu , Niko Sünderhauf , Michael Milford

Recognizing Video events in long, complex videos with multiple sub-activities has received persistent attention recently. This task is more challenging than traditional action recognition with short, relatively homogeneous video clips. In…

Computer Vision and Pattern Recognition · Computer Science 2020-01-16 Yikang Li , Tianshu Yu , Baoxin Li

The novelty of this study consists in a multi-modality approach to scene classification, where image and audio complement each other in a process of deep late fusion. The approach is demonstrated on a difficult classification problem,…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Jordan J. Bird , Diego R. Faria , Cristiano Premebida , Anikó Ekárt , George Vogiatzis

This paper focuses on vision-based pose estimation for multiple rigid objects placed in clutter, especially in cases involving occlusions and objects resting on each other. Progress has been achieved recently in object recognition given…

Robotics · Computer Science 2019-04-04 Chaitanya Mitash , Abdeslam Boularias , Kostas Bekris

Object grasping in cluttered scenes is a widely investigated field of robot manipulation. Most of the current works focus on estimating grasp pose from point clouds based on an efficient single-shot grasp detection network. However, due to…

Robotics · Computer Science 2021-05-19 Wei Wei , Yongkang Luo , Fuyu Li , Guangyun Xu , Jun Zhong , Wanyi Li , Peng Wang

Activity recognition using built-in sensors in smart and wearable devices provides great opportunities to understand and detect human behavior in the wild and gives a more holistic view of individuals' health and well being. Numerous…

Signal Processing · Electrical Eng. & Systems 2020-11-16 Mehrdad Fazli , Kamran Kowsari , Erfaneh Gharavi , Laura Barnes , Afsaneh Doryab

With robots increasingly collaborating with humans in everyday tasks, it is important to take steps toward robotic systems capable of understanding the environment. This work focuses on scene understanding to detect pick and place tasks…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Seraj Ghasemi , Hamed Hosseini , MohammadHossein Koosheshi , Mehdi Tale Masouleh , Ahmad Kalhor

The technological advancement and sophistication in cameras and gadgets prompt researchers to have focus on image analysis and text understanding. The deep learning techniques demonstrated well to assess the potential for classifying text…

Computer Vision and Pattern Recognition · Computer Science 2017-04-25 Saad Bin Ahmed , Saeeda Naz , Muhammad Imran Razzak , Rubiyah Yousaf

Video segmentation for the human head and shoulders is essential in creating elegant media for videoconferencing and virtual reality applications. The main challenge is to process high-quality background subtraction in a real-time manner…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Zijian Kuang , Xinran Tie

This paper presents an unsupervised approach that leverages raw aerial videos to learn to estimate planar homographic transformation between consecutive video frames. Previous learning-based estimators work on pairs of images to estimate…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Pu Li , Xiaobai Liu