Enhancing Object Detection Accuracy in Underwater Sonar Images through Deep Learning-based Denoising

• URL: http://arxiv.org/abs/2503.01655v1
• Date: Mon, 03 Mar 2025 15:30:39 GMT
• Title: Enhancing Object Detection Accuracy in Underwater Sonar Images through Deep Learning-based Denoising
• Authors: Ziyu Wang, Tao Xue, Yanbin Wang, Jingyuan Li, Haibin Zhang, Zhiqiang Xu, Gaofei Xu,
• Abstract summary: Various types of noise in sonar images can affect the accuracy of object detection.<n>Deep learning-based denoising algorithms perform well on optical images.<n>This paper systematically evaluates the effectiveness of several deep learning-based denoising algorithms.
• Score: 20.356838838382576
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Sonar image object detection is crucial for underwater robotics and other applications. However, various types of noise in sonar images can affect the accuracy of object detection. Denoising, as a critical preprocessing step, aims to remove noise while retaining useful information to improve detection accuracy. Although deep learning-based denoising algorithms perform well on optical images, their application to underwater sonar images remains underexplored. This paper systematically evaluates the effectiveness of several deep learning-based denoising algorithms, originally designed for optical images, in the context of underwater sonar image object detection. We apply nine trained denoising models to images from five open-source sonar datasets, each processing different types of noise. We then test the denoised images using four object detection algorithms. The results show that different denoising models have varying effects on detection performance. By combining the strengths of multiple denoising models, the detection results can be optimized, thus more effectively suppressing noise. Additionally, we adopt a multi-frame denoising technique, using different outputs generated by multiple denoising models as multiple frames of the same scene for further processing to enhance detection accuracy. This method, originally designed for optical images, leverages complementary noise-reduction effects. Experimental results show that denoised sonar images improve the performance of object detection algorithms compared to the original sonar images.

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