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Given an image sequence featuring a portion of a sports field filmed by a moving and uncalibrated camera, such as the one of the smartphones, our goal is to compute automatically in real time the focal length and extrinsic camera parameters…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Leonardo Citraro , Pablo Márquez-Neila , Stefano Savarè , Vivek Jayaram , Charles Dubout , Félix Renaut , Andrés Hasfura , Horesh Ben Shitrit , Pascal Fua

A knowledgeable observer of a game of football (soccer) can make a subjective evaluation of the quality of passes made between players during the game. We investigate the problem of producing an automated system to make the same evaluation…

Machine Learning · Computer Science 2017-08-22 Michael Horton , Joachim Gudmundsson , Sanjay Chawla , Joël Estephan

We present a billboard-based free-viewpoint video synthesizing algorithm for sports scenes that can robustly reconstruct and render a high-fidelity billboard model for each object, including an occluded one, in each camera. Its…

Multimedia · Computer Science 2019-09-02 Jun Chen , Ryosuke Watanabe , Keisuke Nonaka , Tomoaki Konno , Hiroshi Sankoh , Sei Naito

A novel Bayesian framework is proposed, which explicitly relates the homography of one video frame to the next through an affine transformation while explicitly modelling keypoint uncertainty. The literature has previously used differential…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Paul J. Claasen , J. P. de Villiers

Realtime virtual data of objects and human presence in a large area holds a valuable key in enabling many experiences and applications in various industries and with exponential rise in the technological development of artificial…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Sahaj Garg

Field detection in team sports is an essential task in sports video analysis. However, collecting large-scale and diverse real-world datasets for training detection models is often cost and time-consuming. Synthetic datasets, which allow…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 HaoBin Qin , Jiale Fang , Keisuke Fujii

In the RoboCup Small Size League (SSL), teams are encouraged to propose solutions for executing basic soccer tasks inside the SSL field using only embedded sensing information. Thus, this work proposes an embedded monocular vision approach…

Robotics · Computer Science 2022-07-21 João G. Melo , Edna Barros

The field of artificial intelligence is built on object detection techniques. YOU ONLY LOOK ONCE (YOLO) algorithm and it's more evolved versions are briefly described in this research survey. This survey is all about YOLO and convolution…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Viswanatha V , Chandana R K , Ramachandra A. C.

Ball recognition and tracking have traditionally been the main focus of computer vision researchers as a crucial component of sports video analysis. The difficulties, such as the small ball size, blurry appearance, quick movements, and so…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Xinyu Wang , Jianwei Li

Detecting small objects over large areas remains a significant challenge in satellite imagery analytics. Among the challenges is the sheer number of pixels and geographical extent per image: a single DigitalGlobe satellite image encompasses…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Adam Van Etten

Cricket generates a rich stream of visual and contextual information, yet much of its tactical analysis still depends on slow and subjective manual review. Motivated by the need for a more efficient and data-driven alternative, this paper…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Joy Karmoker , Masum Billah , Mst Jannatun Ferdous , Akif Islam , Mohd Ruhul Ameen , Md. Omar Faruqe

Sports video data is recorded for nearly every major tournament but remains archived and inaccessible to large scale data mining and analytics. It can only be viewed sequentially or manually tagged with higher-level labels which is time…

Computer Vision and Pattern Recognition · Computer Science 2017-12-27 Anurag Ghosh , Suriya Singh , C. V. Jawahar

This paper proposes a novel approach for detecting objects using mobile robots in the context of the RoboCup Standard Platform League, with a primary focus on detecting the ball. The challenge lies in detecting a dynamic object in varying…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Arne Moos

The chances to win a football match can be significantly increased if the right tactic is chosen and the behavior of the opposite team is well anticipated. For this reason, every professional football club employs a team of game analysts.…

Machine Learning · Computer Science 2019-10-02 Eric Müller-Budack , Jonas Theiner , Robert Rein , Ralph Ewerth

The task of action spotting consists in both identifying actions and precisely localizing them in time with a single timestamp in long, untrimmed video streams. Automatically extracting those actions is crucial for many sports applications,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Silvio Giancola , Anthony Cioppa , Bernard Ghanem , Marc Van Droogenbroeck

Camera calibration is a crucial component in the realm of sports analytics, as it serves as the foundation to extract 3D information out of the broadcast images. Despite the significance of camera calibration research in sports analytics,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Floriane Magera , Thomas Hoyoux , Olivier Barnich , Marc Van Droogenbroeck

The automatic detection and tracking of general objects (like persons, animals or cars), text and logos in a video is crucial for many video understanding tasks, and usually real-time processing as required. We propose OmniTrack, an…

Computer Vision and Pattern Recognition · Computer Science 2019-10-15 Hannes Fassold , Ridouane Ghermi

Efficient and accurate object detection is an important topic in the development of computer vision systems. With the advent of deep learning techniques, the accuracy of object detection has increased significantly. The project aims to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Md Pranto , Omar Faruk

Multi-object tracking (MOT) is a challenging practical problem for vision based applications. Most recent approaches for MOT use precomputed detections from models such as Faster RCNN, performing fine-tuning of bounding boxes and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Parthesh Soni , Falak Shah , Nisarg Vyas

Single object tracking is a vital task of many applications in critical fields. However, it is still considered one of the most challenging vision tasks. In recent years, computer vision, especially object tracking, witnessed the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-20 Omar Abdelaziz , Mohamed Shehata , Mohamed Mohamed