Journal
ANIMALS
Volume 12, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/ani12060692
Keywords
animal welfare; animal behavior; deep learning; object detection; animal monitoring; behavior observation; Ursus maritimus
Funding
- German Research Foundation (DFG) [ES 434/8-1]
- Deutsche Forschungsgemeinschaft
- Friedrich-Alexander-Universitat Erlangen-Nurnberg
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Monitoring animals under human care is essential for tracking their physical and psychological health, analyzing behavioral changes, and improving animal welfare. The development of automated observation systems benefits researchers and practitioners by enhancing observation efficiency and accuracy.
The monitoring of animals under human care is a crucial tool for biologists and zookeepers to keep track of the animals' physical and psychological health. Additionally, it enables the analysis of observed behavioral changes and helps to unravel underlying reasons. Enhancing our understanding of animals ensures and improves ex situ animal welfare as well as in situ conservation. However, traditional observation methods are time- and labor-intensive, as they require experts to observe the animals on-site during long and repeated sessions and manually score their behavior. Therefore, the development of automated observation systems would greatly benefit researchers and practitioners in this domain. We propose an automated framework for basic behavior monitoring of individual animals under human care. Raw video data are processed to continuously determine the position of the individuals within the enclosure. The trajectories describing their travel patterns are presented, along with fundamental analysis, through a graphical user interface (GUI). We evaluate the performance of the framework on captive polar bears (Ursus maritimus). We show that the framework can localize and identify individual polar bears with an F1 score of 86.4%. The localization accuracy of the framework is 19.9 +/- 7.6 cm, outperforming current manual observation methods. Furthermore, we provide a bounding-box-labeled dataset of the two polar bears housed in Nuremberg Zoo.
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