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3D reconstruction of bird flight trajectories using a single video camera
Video cameras are finding increasing use in the study and analysis of bird flight over short ranges. However, reconstruction of flight trajectories in three dimensions typically requires the use of multiple cameras and elaborate calibration procedures. We present an alternative approach that uses a...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9401184/ https://www.ncbi.nlm.nih.gov/pubmed/36001605 http://dx.doi.org/10.1371/journal.pone.0271618 |
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author | Srinivasan, M. V. Vo, H. D. Schiffner, I. |
author_facet | Srinivasan, M. V. Vo, H. D. Schiffner, I. |
author_sort | Srinivasan, M. V. |
collection | PubMed |
description | Video cameras are finding increasing use in the study and analysis of bird flight over short ranges. However, reconstruction of flight trajectories in three dimensions typically requires the use of multiple cameras and elaborate calibration procedures. We present an alternative approach that uses a single video camera and a simple calibration procedure for the reconstruction of such trajectories. The technique combines prior knowledge of the wingspan of the bird with a camera calibration procedure that needs to be used only once in the lifetime of the system. The system delivers the exact 3D coordinates of the position of the bird at the time of every full wing extension and uses interpolated height estimates to compute the 3D positions of the bird in the video frames between successive wing extensions. The system is inexpensive, compact and portable, and can be easily deployed in the laboratory as well as the field. |
format | Online Article Text |
id | pubmed-9401184 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-94011842022-08-25 3D reconstruction of bird flight trajectories using a single video camera Srinivasan, M. V. Vo, H. D. Schiffner, I. PLoS One Research Article Video cameras are finding increasing use in the study and analysis of bird flight over short ranges. However, reconstruction of flight trajectories in three dimensions typically requires the use of multiple cameras and elaborate calibration procedures. We present an alternative approach that uses a single video camera and a simple calibration procedure for the reconstruction of such trajectories. The technique combines prior knowledge of the wingspan of the bird with a camera calibration procedure that needs to be used only once in the lifetime of the system. The system delivers the exact 3D coordinates of the position of the bird at the time of every full wing extension and uses interpolated height estimates to compute the 3D positions of the bird in the video frames between successive wing extensions. The system is inexpensive, compact and portable, and can be easily deployed in the laboratory as well as the field. Public Library of Science 2022-08-24 /pmc/articles/PMC9401184/ /pubmed/36001605 http://dx.doi.org/10.1371/journal.pone.0271618 Text en © 2022 Srinivasan et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Srinivasan, M. V. Vo, H. D. Schiffner, I. 3D reconstruction of bird flight trajectories using a single video camera |
title | 3D reconstruction of bird flight trajectories using a single video camera |
title_full | 3D reconstruction of bird flight trajectories using a single video camera |
title_fullStr | 3D reconstruction of bird flight trajectories using a single video camera |
title_full_unstemmed | 3D reconstruction of bird flight trajectories using a single video camera |
title_short | 3D reconstruction of bird flight trajectories using a single video camera |
title_sort | 3d reconstruction of bird flight trajectories using a single video camera |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9401184/ https://www.ncbi.nlm.nih.gov/pubmed/36001605 http://dx.doi.org/10.1371/journal.pone.0271618 |
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