Deep object detection for waterbird monitoring using aerial imagery

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Krish Kabra1,†, Alexander Xiong1,†, Wenbin Li1,†, Minxuan Luo1, William Lu1, Raul Garcia1, Dhananjay Vijay1, Jiahui Yu1, Maojie Tang1, Tianjiao Yu1, Hank Arnold2, Anna Vallery2, Richard Gibbons3, Arko Barman1

1Rice University
2Houston Audubon Society
2American Bird Conservancy
Denotes equal contribution *Corresponding author: kk80@rice.edu

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Abstract

Monitoring of colonial waterbird nesting islands is essential to tracking waterbird population trends, which are used for evaluating ecosystem health and informing conservation management decisions. Recently, unmanned aerial vehicles, or drones, have emerged as a viable technology to precisely monitor waterbird colonies. However, manually counting waterbirds from hundreds, or potentially thousands, of aerial images is both difficult and time-consuming. In this work, we present a deep learning pipeline that can be used to precisely detect, count, and monitor waterbirds using aerial imagery collected by a commercial drone. By utilizing convolutional neural network-based object detectors, we show that we can detect 16 classes of waterbird species that are commonly found in colonial nesting islands along the Texas coast. Our experiments using Faster R-CNN and RetinaNet object detectors give mean interpolated average precision scores of 67.9% and 63.1% respectively.

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Citation

@inproceedings{kabra2022deep,
  title={Deep object detection for waterbird monitoring using aerial imagery},
  author={Kabra, Krish and Xiong, Alexander and Li, Wenbin and Luo, Minxuan and Lu, William and Yu, Tianjiao and Yu, Jiahui and Singh, Dhananjay and Garcia. Raul and Tang, Maojie and others},
  booktitle={2022 21st IEEE International Conference on Machine Learning and Applications (ICMLA)},
  pages={455--460},
  year={2022},
  organization={IEEE}
}
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