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Recently, the community has made tremendous progress in developing effective methods for point cloud video understanding that learn from massive amounts of labeled data. However, annotating point cloud videos is usually notoriously…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Zhiqiang Shen , Xiaoxiao Sheng , Hehe Fan , Longguang Wang , Yulan Guo , Qiong Liu , Hao Wen , Xi Zhou

Tracking data is a powerful tool for basketball teams in order to extract advanced semantic information and statistics that might lead to a performance boost. However, multi-person tracking is a challenging task to solve in single-camera…

Computer Vision and Pattern Recognition · Computer Science 2019-07-11 Adrià Arbués-Sangüesa , Gloria Haro , Coloma Ballester

Recently, there have been some attempts of Transformer in 3D point cloud classification. In order to reduce computations, most existing methods focus on local spatial attention, but ignore their content and fail to establish relationships…

Computer Vision and Pattern Recognition · Computer Science 2023-07-21 Yahui Liu , Bin Tian , Yisheng Lv , Lingxi Li , Feiyue Wang

3D object detection is a fundamental task in scene understanding. Numerous research efforts have been dedicated to better incorporate Hough voting into the 3D object detection pipeline. However, due to the noisy, cluttered, and partial…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Haoran Hou , Mingtao Feng , Zijie Wu , Weisheng Dong , Qing Zhu , Yaonan Wang , Ajmal Mian

This paper addresses the problem of estimating and tracking human body keypoints in complex, multi-person video. We propose an extremely lightweight yet highly effective approach that builds upon the latest advancements in human detection…

Computer Vision and Pattern Recognition · Computer Science 2018-05-04 Rohit Girdhar , Georgia Gkioxari , Lorenzo Torresani , Manohar Paluri , Du Tran

Videos are a commonly-used type of content in learning during Web search. Many e-learning platforms provide quality content, but sometimes educational videos are long and cover many topics. Humans are good in extracting important sections…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Junaid Ahmed Ghauri , Sherzod Hakimov , Ralph Ewerth

Point cloud compression has garnered significant interest in computer vision. However, existing algorithms primarily cater to human vision, while most point cloud data is utilized for machine vision tasks. To address this, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Lei Liu , Zhihao Hu , Zhenghao Chen

Visual attributes in individual video frames, such as the presence of characteristic objects and scenes, offer substantial information for action recognition in videos. With individual 2D video frame as input, visual attributes extraction…

Computer Vision and Pattern Recognition · Computer Science 2018-05-09 Yunfeng Wang , Wengang Zhou , Qilin Zhang , Houqiang Li

We consider the problem of providing dense segmentation masks for object discovery in videos. We formulate the object discovery problem as foreground motion clustering, where the goal is to cluster foreground pixels in videos into different…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Christopher Xie , Yu Xiang , Zaid Harchaoui , Dieter Fox

There has been a growing interest in using different approaches to improve the coding efficiency of modern video codec in recent years as demand for web-based video consumption increases. In this paper, we propose a model-based approach…

Computer Vision and Pattern Recognition · Computer Science 2018-02-09 Chichen Fu , Di Chen , Edward J. Delp , Zoe Liu , Fengqing Zhu

In this paper the argument is made that for true novel view synthesis of objects, where the object can be synthesized from any viewpoint, an explicit 3D shape representation isdesired. Our method estimates point clouds to capture the…

Computer Vision and Pattern Recognition · Computer Science 2020-09-21 Hoang-An Le , Thomas Mensink , Partha Das , Theo Gevers

For fine-grained categorization tasks, videos could serve as a better source than static images as videos have a higher chance of containing discriminative patterns. Nevertheless, a video sequence could also contain a lot of redundant and…

Computer Vision and Pattern Recognition · Computer Science 2018-10-29 Chen Zhu , Xiao Tan , Feng Zhou , Xiao Liu , Kaiyu Yue , Errui Ding , Yi Ma

Existing techniques to compress point cloud attributes leverage either geometric or video-based compression tools. We explore a radically different approach inspired by recent advances in point cloud representation learning. Point clouds…

Image and Video Processing · Electrical Eng. & Systems 2020-06-23 Maurice Quach , Giuseppe Valenzise , Frederic Dufaux

In this paper, we construct a lightweight, high-precision and high-speed object tracking using a trained CNN. Conventional methods with trained CNNs use VGG16 network which requires powerful computational resources. Therefore, there is a…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Tsubasa Murate , Takashi Watanabe , Masaki Yamada

This paper presents a new event-based method for detecting and tracking features from the output of an event-based camera. Unlike many tracking algorithms from the computer vision community, this process does not aim for particular…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Laurent Dardelet , Sio-Hoi Ieng , Ryad Benosman

We propose a lightweight and accurate method for detecting anomalies in videos. Existing methods used multiple-instance learning (MIL) to determine the normal/abnormal status of each segment of the video. Recent successful researches argue…

Computer Vision and Pattern Recognition · Computer Science 2022-09-15 Yudai Watanabe , Makoto Okabe , Yasunori Harada , Naoji Kashima

3D point cloud interpretation is a challenging task due to the randomness and sparsity of the component points. Many of the recently proposed methods like PointNet and PointCNN have been focusing on learning shape descriptions from point…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Zhaoyu Su , Pin Siang Tan , Junkang Chow , Jimmy Wu , Yehur Cheong , Yu-Hsing Wang

Great progress has been made in point cloud classification with learning-based methods. However, complex scene and sensor inaccuracy in real-world application make point cloud data suffer from corruptions, such as occlusion, noise and…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Lifa Zhu , Changwei Lin , Chen Zheng , Ninghua Yang

Thispaperaimstoresearchandimplementa real-timevideotargettrackingalgorithmbasedon ConvolutionalNeuralNetworks(CNN),enhancingthe accuracyandrobustnessoftargettrackingincomplex scenarios.Addressingthelimitationsoftraditionaltracking…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Chaoyi Tan , Xiangtian Li , Xiaobo Wang , Zhen Qi , Ao Xiang

Video instance segmentation is a complex task in which we need to detect, segment, and track each object for any given video. Previous approaches only utilize single-frame features for the detection, segmentation, and tracking of objects…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Yang Fu , Linjie Yang , Ding Liu , Thomas S. Huang , Humphrey Shi