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An Image Analysis of Coastal Debris Detection -Detection of microplastics using deep learning-

Proceedings of International Conference on Artificial Life and Robotics 2024
Yuto Okawachi, Shintaro Ogawa, Takamasa Hayashi, Chi Jie Tan, Janthori Titan, Eiji Hayashi, Eiji Hayashi, Ayumu Tominaga, Satoko Seino

Summary

Researchers developed a deep learning-based coastal debris detection system using YOLOv7 and the SAHI vision library to identify microplastics in image data collected from shorelines. The system demonstrated effective detection performance and offers a scalable approach for automated monitoring of microplastic litter in coastal environments.

To address the issue of litter drifting ashore, this study developed a deep learning-based microplastic detection system.The system employed yolov7 [1] as its deep learning network, complemented by SAHI (Slicing Aided Hyper Inference) [2] as an additional vision library.yolov7 is renowned for its efficacy in real-time object detection.Our experimental framework involved four tests, utilizing two variations of yolov7 -the standard model and yolov7-e6e -in conjunction with SAHI.The effectiveness of each test was quantified using metrics such as Intersection over Union (IoU), Precision, Recall, F-measure, and Detection Time in seconds.For our dataset, we gathered images from actual cleanup locations, such as Hokuto Mizukumi Park.The model's discriminator underwent 700 training iterations, with a learning rate set at 0.001.Experimental results showed that it detects fairly small microplastics.

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