Scaling whale monitoring using deep learning: A human-in-the-loop solution for analyzing aerial datasets

Frontiers in Marine Science

Marine Science

Cortney A. Watt¹  Marianne Marcoux¹  Malcolm McHugh Kennedy²  Bertrand Charry²  Antoine Gagné-Turcotte²  Emily Tissier²  Raina Fan²  Justine Boulent² 

[1] Aquatic Research Division, Fisheries and Oceans Canada, Winnipeg, Manitoba, Canada;Whale Seeker, Montreal, Quebec, Canada;

关键词: semantic segmentation;    automated cetacean detection;    active learning;    wildlife monitoring;    artificial intelligence;   

DOI  :  10.3389/fmars.2023.1099479

 received in 2022-11-15, accepted in 2023-02-17,  发布年份 2023

来源: Frontiers

【 摘 要 】

To ensure effective cetacean management and conservation policies, it is necessary to collect and rigorously analyze data about these populations. Remote sensing allows the acquisition of images over large observation areas, but due to the lack of reliable automatic analysis techniques, biologists usually analyze all images by hand. In this paper, we propose a human-in-the-loop approach to couple the power of deep learning-based automation with the expertise of biologists to develop a reliable artificial intelligence assisted annotation tool for cetacean monitoring. We tested this approach to analyze a dataset of 5334 aerial images acquired in 2017 by Fisheries and Oceans Canada to monitor belugas (Delphinapterus leucas) from the threatened Cumberland Sound population in Clearwater Fjord, Canada. First, we used a test subset of photographs to compare predictions obtained by the fine-tuned model to manual annotations made by three observers, expert marine mammal biologists. With only 100 annotated images for training, the model obtained between 90% and 91.4% mutual agreement with the three observers, exceeding the minimum inter-observer agreement of 88.6% obtained between the experts themselves. Second, this model was applied to the full dataset. The predictions were then verified by an observer and compared to annotations made completely manually and independently by another observer. The annotating observer and the human-in-the-loop pipeline detected 4051 belugas in common, out of a total of 4572 detections for the observer and 4298 for our pipeline. This experiment shows that the proposed human-in-the-loop approach is suitable for processing novel aerial datasets for beluga counting and can be used to scale cetacean monitoring. It also highlights that human observers, even experienced ones, have varied detection bias, underlining the need to discuss standardization of annotation protocols.

【 授权许可】

Unknown   
Copyright © 2023 Boulent, Charry, Kennedy, Tissier, Fan, Marcoux, Watt and Gagné-Turcotte