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Journal of Sensors
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2022
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Article
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Fig 7
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Research Article
An Improved Object Detection Method for Underwater Sonar Image Based on PP-YOLOv2
Figure 7
Object examples from each category: 0 ball, 1 circle, 2 cubes, 3 cylinders, 4 human bodies, 5 metal buckets, 6 square cages, and 7 tyres.