"Corvid Tracking Studio" : A custom-built motion capture system to track head movements of corvids

Itahara, Akihiro; Kano, Fumihiro

"Corvid Tracking Studio" : A custom-built motion capture system to track head movements of corvids

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Datum

2022

Autor:innen

Itahara, Akihiro

Kano, Fumihiro

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Japanese Journal of Animal Psychology ; 72 (2022), 1. - S. 1-16. - Japanese Society for Animal Psychology. - ISSN 0916-8419

Zusammenfassung

Recent technological advances made it possible to record postural changes of moving animals in behavior/cognition research. Although several technologies are available for this purpose, one underexplored possibility is the use of an infrared motion-capture system, which excels at tracking subtle and rapid 3D movements of animals. We explored this possibility by developing a system optimized to track saccadic head movements of large-billed crows (Corvus macrorhynchos). We custom-built a motion-capture room, "Corvid Tracking Studio", in which birds can freely interact with conspecifics/objects while infrared cameras track the reflective markers attached to the birds' heads. We also developed a head-calibration method that reconstructs the 3D positions of each bird's eyes and beak tip with respect to those of the head markers. We then tested accuracies of the head-orientation coordinate system reconstructed from the eye-beak coordinates of a bird and confirmed that estimated errors were all within a degree (in Euler angles). We thus show that a motion capture system has a good potential to examine subtle and rapid movements of moving animals with several customizations.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

Attention, Corvids, Head movement, Motion capture system, Posture-tracking

Zitieren

ISO 690

ITAHARA, Akihiro, Fumihiro KANO, 2022. "Corvid Tracking Studio" : A custom-built motion capture system to track head movements of corvids. In: Japanese Journal of Animal Psychology. Japanese Society for Animal Psychology. 72(1), pp. 1-16. ISSN 0916-8419. Available under: doi: 10.2502/janip.72.1.1

BibTex

@article{Itahara2022Corvi-58443,
  year={2022},
  doi={10.2502/janip.72.1.1},
  title={"Corvid Tracking Studio" : A custom-built motion capture system to track head movements of corvids},
  number={1},
  volume={72},
  issn={0916-8419},
  journal={Japanese Journal of Animal Psychology},
  pages={1--16},
  author={Itahara, Akihiro and Kano, Fumihiro}
}

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