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A low-cost, long-running, open-source stereo camera for tracking aquatic species and their behaviours

Dunkley, Katie ; Dunkley, Andrew ; Drewnicki, James ; Keith, Inti and Herbert-Read, James E. LU orcid (2023) In Methods in Ecology and Evolution 14(10). p.2549-2556
Abstract

Ecologists are now widely utilising video data to quantify the behaviours and interactions of animals in the wild. This process can be facilitated by collecting videos in stereo, which can provide information about animals' positions, movements and behaviours in three-dimensions (3D). However, there are no published designs that can collect underwater 3D stereo data at high spatial and temporal resolutions for extended periods (days). Here, we present complete hardware and software solutions for a long-running, open-source, underwater stereo camera rig, costing £1337. This stereo camera can continuously record aquatic species and their behaviours/interactions in high resolution (1080 p and 30 fps) and in 3D, over multiple days. We... (More)

Ecologists are now widely utilising video data to quantify the behaviours and interactions of animals in the wild. This process can be facilitated by collecting videos in stereo, which can provide information about animals' positions, movements and behaviours in three-dimensions (3D). However, there are no published designs that can collect underwater 3D stereo data at high spatial and temporal resolutions for extended periods (days). Here, we present complete hardware and software solutions for a long-running, open-source, underwater stereo camera rig, costing £1337. This stereo camera can continuously record aquatic species and their behaviours/interactions in high resolution (1080 p and 30 fps) and in 3D, over multiple days. We provide full design guides for the cameras and a travel-friendly rig, and include guidance and open-source code for calibrating the cameras in space and time. We also show how these cameras could be used to track animals' body parts and positions, and how their size, posture and behaviour can be inferred. This stereo camera will facilitate the collection of high-resolution ecological and behavioural data, such as affiliative, agonistic or trophic interactions between species, which can inform us about the health and structure of ecosystems. These data will assist ecologists and conservationists in monitoring and understanding the impacts of current environmental pressures on ecosystem functioning.

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Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
3D, pose, Raspberry Pi, species interactions, stereo calibration, stereophotogrammetry, trajectory, underwater camera
in
Methods in Ecology and Evolution
volume
14
issue
10
pages
8 pages
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:85161569472
ISSN
2041-210X
DOI
10.1111/2041-210X.14151
language
English
LU publication?
yes
id
c25f01b2-95b8-4341-a5a3-bda32870b3c6
date added to LUP
2023-08-23 15:01:07
date last changed
2024-01-09 15:46:45
@article{c25f01b2-95b8-4341-a5a3-bda32870b3c6,
  abstract     = {{<p>Ecologists are now widely utilising video data to quantify the behaviours and interactions of animals in the wild. This process can be facilitated by collecting videos in stereo, which can provide information about animals' positions, movements and behaviours in three-dimensions (3D). However, there are no published designs that can collect underwater 3D stereo data at high spatial and temporal resolutions for extended periods (days). Here, we present complete hardware and software solutions for a long-running, open-source, underwater stereo camera rig, costing £1337. This stereo camera can continuously record aquatic species and their behaviours/interactions in high resolution (1080 p and 30 fps) and in 3D, over multiple days. We provide full design guides for the cameras and a travel-friendly rig, and include guidance and open-source code for calibrating the cameras in space and time. We also show how these cameras could be used to track animals' body parts and positions, and how their size, posture and behaviour can be inferred. This stereo camera will facilitate the collection of high-resolution ecological and behavioural data, such as affiliative, agonistic or trophic interactions between species, which can inform us about the health and structure of ecosystems. These data will assist ecologists and conservationists in monitoring and understanding the impacts of current environmental pressures on ecosystem functioning.</p>}},
  author       = {{Dunkley, Katie and Dunkley, Andrew and Drewnicki, James and Keith, Inti and Herbert-Read, James E.}},
  issn         = {{2041-210X}},
  keywords     = {{3D; pose; Raspberry Pi; species interactions; stereo calibration; stereophotogrammetry; trajectory; underwater camera}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{10}},
  pages        = {{2549--2556}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Methods in Ecology and Evolution}},
  title        = {{A low-cost, long-running, open-source stereo camera for tracking aquatic species and their behaviours}},
  url          = {{http://dx.doi.org/10.1111/2041-210X.14151}},
  doi          = {{10.1111/2041-210X.14151}},
  volume       = {{14}},
  year         = {{2023}},
}