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Domain randomization-enhanced deep learning models for bird detection.


ABSTRACT: Automatic bird detection in ornithological analyses is limited by the accuracy of existing models, due to the lack of training data and the difficulties in extracting the fine-grained features required to distinguish bird species. Here we apply the domain randomization strategy to enhance the accuracy of the deep learning models in bird detection. Trained with virtual birds of sufficient variations in different environments, the model tends to focus on the fine-grained features of birds and achieves higher accuracies. Based on the 100 terabytes of 2-month continuous monitoring data of egrets, our results cover the findings using conventional manual observations, e.g., vertical stratification of egrets according to body size, and also open up opportunities of long-term bird surveys requiring intensive monitoring that is impractical using conventional methods, e.g., the weather influences on egrets, and the relationship of the migration schedules between the great egrets and little egrets.

SUBMITTER: Mao X 

PROVIDER: S-EPMC7803967 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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Domain randomization-enhanced deep learning models for bird detection.

Mao Xin X   Chow Jun Kang JK   Tan Pin Siang PS   Liu Kuan-Fu KF   Wu Jimmy J   Su Zhaoyu Z   Cheong Ye Hur YH   Ooi Ghee Leng GL   Pang Chun Chiu CC   Wang Yu-Hsing YH  

Scientific reports 20210112 1


Automatic bird detection in ornithological analyses is limited by the accuracy of existing models, due to the lack of training data and the difficulties in extracting the fine-grained features required to distinguish bird species. Here we apply the domain randomization strategy to enhance the accuracy of the deep learning models in bird detection. Trained with virtual birds of sufficient variations in different environments, the model tends to focus on the fine-grained features of birds and achi  ...[more]

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