- 著者
- 板原 彰宏 狩野 文浩
- 出版者
- THE JAPANESE SOCIETY FOR ANIMAL PSYCHOLOGY
- 雑誌
- 動物心理学研究 (ISSN:09168419)
- 巻号頁・発行日
- pp.72.1.1, (Released:2022-04-16)
- 参考文献数
- 52
- 被引用文献数
- 6
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.
