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Underwater Intelligent Detection and Object Recognition Based on Deep Learning

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Navigation and Positioning".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 765

Special Issue Editors


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Guest Editor
Ocean College, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Interests: underwater image processing; underwater target tracking; integration of detection and communication

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Guest Editor
Ocean Institute/School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
Interests: integration of underwater acoustic sensing and communication; array signal processing
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Guest Editor
School of Electronic Engineering, Jiangsu Ocean University, Lianyungang, China
Interests: intelligent marine aquaculture; underwater engineering detection; marine organism analysis and identification

Special Issue Information

Dear Colleagues,

Due to its powerful feature extraction ability, deep learning can effectively overcome the interference of complex underwater environments, significantly improving the accuracy and efficiency of object detection and recognition. At the same time, it enhances environmental adaptability and real-time processing capabilities, promoting the transformation of underwater detection from the traditional mode to intelligent autonomous decision-making. Moreover, it facilitates the interdisciplinary integration of multiple disciplines, providing key technical support for fields such as marine resource development, environmental monitoring, and military applications. 

This Special Issue, therefore, aims to showcase original research and review articles on recent advances, technologies, solutions, applications, and new challenges in the field of underwater intelligent detection and object recognition based on deep learning.

Potential topics include but are not limited to the following:

  • Object detection in sonar images;
  • Multi-sensor fusion target positioning;
  • Underwater image enhancement;
  • Video object tracking;
  • Marine organism classification;
  • Recognition of underwater man-made objects;
  • Underwater topographic mapping;
  • Water quality monitoring and assessments.

Prof. Dr. Zhenkai Zhang
Prof. Dr. Wentao Shi
Prof. Dr. Miao Yang
Guest Editors

Manuscript Submission Information

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Keywords

  • object detection
  • target positioning
  • object tracking

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Published Papers (1 paper)

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Research

23 pages, 4279 KB  
Article
DCT Underwater Image Enhancement Based on Attenuation Analysis
by Leyuan Wang, Miao Yang, Can Pan and Jiaju Tao
Sensors 2025, 25(23), 7192; https://doi.org/10.3390/s25237192 - 25 Nov 2025
Viewed by 495
Abstract
Underwater images often suffer from color distortion, reduced contrast, and blurred details due to the selective absorption and scattering of light by water, which limits the performance of underwater visual tasks. To address these issues, this paper proposes an underwater image enhancement method [...] Read more.
Underwater images often suffer from color distortion, reduced contrast, and blurred details due to the selective absorption and scattering of light by water, which limits the performance of underwater visual tasks. To address these issues, this paper proposes an underwater image enhancement method that integrates multi-channel attenuation analysis and discrete cosine transform (DCT). First, the color statistics of an in situ-captured underwater image are mapped to those of a reference image selected from a well-illuminated natural image dataset with standard color distribution; no pristine underwater image is required. This mapping yields a color transfer image, i.e., an intermediate color-corrected result obtained via statistical matching. Subsequently, this image is fused with an attenuation weight map and the original input to produce the final color-corrected result. Secondly, taking advantage of the median’s resistance to extreme value interference and the Sigmoid function’s flexible control of gray-scale transformation, the gray-scale range is adjusted in different regions through nonlinear mapping to achieve global contrast balance. Finally, considering the visual system’s sensitivity to high-frequency details, a saliency map is extracted using Gabor filtering, and the frequency characteristics are analyzed through block DCT transformation. Adaptive gain is applied to high-frequency details to enhance them. Experiments were conducted on the UIEB, EUVP, and LSUI datasets and compared with existing methods. Through qualitative and quantitative analysis, it was verified that the proposed algorithm not only effectively enhances underwater images but also significantly improves image clarity. Full article
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