Estimating Distances Between People Using a Single Overhead Fisheye Camera with Application to Social-Distancing Oversight

Zhangchi Lu, Mertcan Cokbas, Prakash Ishwar, Janusz Konrad

2023

Abstract

Unobtrusive monitoring of distances between people indoors is a useful tool in the fight against pandemics. A natural resource to accomplish this are surveillance cameras. Unlike previous distance estimation methods, we use a single, overhead, fisheye camera with wide area coverage and propose two approaches. One method leverages a geometric model of the fisheye lens, whereas the other method uses a neural network to predict the 3D-world distance from people-locations in a fisheye image. For evaluation, we collected a first-of-its-kind dataset, Distance Estimation between People from Overhead Fisheye cameras (DEPOF), using a single fisheye camera, that comprises a wide range of distances between people (1–58ft) and is publicly available. The algorithms achieve 20-inch average distance error and 95% accuracy in detecting social-distance violations.

Paper Citation

in Harvard Style

Lu Z., Cokbas M., Ishwar P. and Konrad J. (2023). Estimating Distances Between People Using a Single Overhead Fisheye Camera with Application to Social-Distancing Oversight. In Proceedings of the 18th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2023) - Volume 5: VISAPP; ISBN 978-989-758-634-7, SciTePress, pages 528-535. DOI: 10.5220/0011653100003417

in Bibtex Style

@conference{visapp23,
author={Zhangchi Lu and Mertcan Cokbas and Prakash Ishwar and Janusz Konrad},
title={Estimating Distances Between People Using a Single Overhead Fisheye Camera with Application to Social-Distancing Oversight},
booktitle={Proceedings of the 18th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2023) - Volume 5: VISAPP},
year={2023},
pages={528-535},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011653100003417},
isbn={978-989-758-634-7},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 18th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2023) - Volume 5: VISAPP
TI - Estimating Distances Between People Using a Single Overhead Fisheye Camera with Application to Social-Distancing Oversight
SN - 978-989-758-634-7
AU - Lu Z.
AU - Cokbas M.
AU - Ishwar P.
AU - Konrad J.
PY - 2023
SP - 528
EP - 535
DO - 10.5220/0011653100003417
PB - SciTePress