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International Journal of New Developments in Engineering and Society, 2025, 9(2); doi: 10.25236/IJNDES.2025.090213.

Research on Underwater Object Detection Method Based on Deep Learning

Author(s)

Yuan Liu1, Yang Xu1, Xingkun Li2, Guodong Chen1

Corresponding Author:
Guodong Chen
Affiliation(s)

1School of Naval Architecture and Port Engineering, Shandong Jiao Tong University, Weihai, Shandong Province, 264209, China

2School of Physical Sciences, Qingdao University, Qingdao, Shandong Province, 266071, China

Abstract

Underwater environments present unique and challenging conditions for target detection. Factors such as light attenuation, suspended particles, and water turbulence contribute to significant color distortion, low contrast, complex target morphology, and dense background clutter. To address these issues, this paper proposes UWYOLO, a specialized model based on the YOLOv8 framework that incorporates the Large Separable Kernel Attention (LSKA) module. Designed to enhance detection performance in such difficult conditions, UWYOLO improves the extraction of shape features and increases robustness, particularly for detecting small targets in cluttered backgrounds. By emphasizing shape information over texture, the model also demonstrates improved applicability in practical underwater tasks such as biodiversity monitoring and environmental surveys. Experimental results show that UWYOLO achieves a mean average precision (mAP) of 84.9% on a specialized underwater dataset, exceeding the baseline YOLOv8 by 1.0%, confirming its advanced accuracy in underwater target detection.

Keywords

Underwater object detection; Large separable kernel attention; Deep learning; Shape feature extraction; UWYOLO

Cite This Paper

Yuan Liu, Yang Xu, Xingkun Li, Guodong Chen. Research on Underwater Object Detection Method Based on Deep Learning. International Journal of New Developments in Engineering and Society (2025), Vol. 9, Issue 2: 78-83. https://doi.org/10.25236/IJNDES.2025.090213.

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