S<sup>3</sup>DR-Det: A Rotating Target Detection Model for High Aspect Ratio Shipwreck Targets in Side-Scan Sonar Images

The characteristics of multi-directional rotation and high aspect ratio of targets such as shipwrecks lead to low detection accuracy and difficulty localizing existing detection models for this target type. Through our research, we design three main inconsistencies in rotating target detection compa...

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Main Authors: Quanhong Ma, Shaohua Jin, Gang Bian, Yang Cui, Guoqing Liu, Yihan Wang
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/17/2/312
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author Quanhong Ma
Shaohua Jin
Gang Bian
Yang Cui
Guoqing Liu
Yihan Wang
author_facet Quanhong Ma
Shaohua Jin
Gang Bian
Yang Cui
Guoqing Liu
Yihan Wang
author_sort Quanhong Ma
collection DOAJ
description The characteristics of multi-directional rotation and high aspect ratio of targets such as shipwrecks lead to low detection accuracy and difficulty localizing existing detection models for this target type. Through our research, we design three main inconsistencies in rotating target detection compared to traditional target detection, i.e., inconsistency between target and anchor frame, inconsistency between classification features and regression features, and inconsistency between rotating frame quality and label assignment strategy. In this paper, to address the discrepancies in the above three aspects, we propose the Side-scan Sonar Dynamic Rotating Target Detector (S<sup>3</sup>DR-Det), which is a model with a dynamic rotational convolution (DRC) module designed to effectively gather rotating targets’ high-quality features during the model’s feature extraction phase, a feature decoupling module (FDM) designed to distinguish between the various features needed for regression and classification in the detection phase, and a dynamic label assignment strategy based on spatial matching prior information (S-A) specific to rotating targets in the training phase, which can more reasonably and accurately classify positive and negative samples. The three modules not only solve the problems unique to each stage but are also highly coupled to solve the difficulties of target detection caused by the multi-direction and high aspect ratio of the target in the side-scan sonar image. Our model achieves an average accuracy (AP) of 89.68% on the SSUTD dataset and 90.19% on the DNASI dataset. These results indicate that our model has excellent detection performance.
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institution Kabale University
issn 2072-4292
language English
publishDate 2025-01-01
publisher MDPI AG
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series Remote Sensing
spelling doaj-art-53f20c7622a746e4b869d68c93afe73d2025-01-24T13:48:05ZengMDPI AGRemote Sensing2072-42922025-01-0117231210.3390/rs17020312S<sup>3</sup>DR-Det: A Rotating Target Detection Model for High Aspect Ratio Shipwreck Targets in Side-Scan Sonar ImagesQuanhong Ma0Shaohua Jin1Gang Bian2Yang Cui3Guoqing Liu4Yihan Wang5Department of Oceanography and Hydrography, Dalian Naval Academy, Dalian 116018, ChinaDepartment of Oceanography and Hydrography, Dalian Naval Academy, Dalian 116018, ChinaDepartment of Oceanography and Hydrography, Dalian Naval Academy, Dalian 116018, ChinaDepartment of Oceanography and Hydrography, Dalian Naval Academy, Dalian 116018, ChinaDepartment of Oceanography and Hydrography, Dalian Naval Academy, Dalian 116018, ChinaDepartment of Oceanography and Hydrography, Dalian Naval Academy, Dalian 116018, ChinaThe characteristics of multi-directional rotation and high aspect ratio of targets such as shipwrecks lead to low detection accuracy and difficulty localizing existing detection models for this target type. Through our research, we design three main inconsistencies in rotating target detection compared to traditional target detection, i.e., inconsistency between target and anchor frame, inconsistency between classification features and regression features, and inconsistency between rotating frame quality and label assignment strategy. In this paper, to address the discrepancies in the above three aspects, we propose the Side-scan Sonar Dynamic Rotating Target Detector (S<sup>3</sup>DR-Det), which is a model with a dynamic rotational convolution (DRC) module designed to effectively gather rotating targets’ high-quality features during the model’s feature extraction phase, a feature decoupling module (FDM) designed to distinguish between the various features needed for regression and classification in the detection phase, and a dynamic label assignment strategy based on spatial matching prior information (S-A) specific to rotating targets in the training phase, which can more reasonably and accurately classify positive and negative samples. The three modules not only solve the problems unique to each stage but are also highly coupled to solve the difficulties of target detection caused by the multi-direction and high aspect ratio of the target in the side-scan sonar image. Our model achieves an average accuracy (AP) of 89.68% on the SSUTD dataset and 90.19% on the DNASI dataset. These results indicate that our model has excellent detection performance.https://www.mdpi.com/2072-4292/17/2/312side-scan sonarshipwreck targetsrotating target detectionlabel assignment strategy
spellingShingle Quanhong Ma
Shaohua Jin
Gang Bian
Yang Cui
Guoqing Liu
Yihan Wang
S<sup>3</sup>DR-Det: A Rotating Target Detection Model for High Aspect Ratio Shipwreck Targets in Side-Scan Sonar Images
Remote Sensing
side-scan sonar
shipwreck targets
rotating target detection
label assignment strategy
title S<sup>3</sup>DR-Det: A Rotating Target Detection Model for High Aspect Ratio Shipwreck Targets in Side-Scan Sonar Images
title_full S<sup>3</sup>DR-Det: A Rotating Target Detection Model for High Aspect Ratio Shipwreck Targets in Side-Scan Sonar Images
title_fullStr S<sup>3</sup>DR-Det: A Rotating Target Detection Model for High Aspect Ratio Shipwreck Targets in Side-Scan Sonar Images
title_full_unstemmed S<sup>3</sup>DR-Det: A Rotating Target Detection Model for High Aspect Ratio Shipwreck Targets in Side-Scan Sonar Images
title_short S<sup>3</sup>DR-Det: A Rotating Target Detection Model for High Aspect Ratio Shipwreck Targets in Side-Scan Sonar Images
title_sort s sup 3 sup dr det a rotating target detection model for high aspect ratio shipwreck targets in side scan sonar images
topic side-scan sonar
shipwreck targets
rotating target detection
label assignment strategy
url https://www.mdpi.com/2072-4292/17/2/312
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