Results 11 to 20 of about 6,273,313 (270)
Target Detection of Forward-Looking Sonar Image Based on Improved YOLOv5
IEEE Access, 2022 Forward-looking sonar is a commonly used underwater detection device at present, but the detection accuracy is poor due to the complex underwater environment, small target highlight area and fuzzy feature details. Therefore, this paper proposes a forward
Haoting Zhang +4 more
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Journal of Marine Science and EngineeringThere are many challenges in using side-scan sonar (SSS) images to detect objects. The challenge of object detection and recognition in sonar data is greater than in optical images due to the sparsity of detectable targets.
Jier Xi, Xiufen Ye
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Image Recognition Technology in Texture Identification of Marine Sediment Sonar Image
Complexity, 2021 Through the recognition of ocean sediment sonar images, the texture in the image can be classified, which provides an important basis for the classification of ocean sediment.
Chao Sun, Li Wang, Nan Wang, Shaohua Jin
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A Novel Lightweight Algorithm for Sonar Image Recognition [PDF]
SensorsSonar images possess characteristics such as low resolution, high noise, and blurred edges. Utilizing CNNs would lead to problems such as inadequate target recognition accuracy.
Gang Wan +6 more
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A Curvelet-Transform-Based Image Fusion Method Incorporating Side-Scan Sonar Image Features
Journal of Marine Science and Engineering, 2023 Current methods of fusing side-scan sonar images fail to tackle the issues of shadow removal, preservation of information from adjacent strip images, and maintenance of image clarity and contrast. To address these deficiencies, a novel curvelet-transform-
Xinyang Zhao +5 more
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DA-YOLOv7: A Deep Learning-Driven High-Performance Underwater Sonar Image Target Recognition Model
Journal of Marine Science and EngineeringAffected by the complex underwater environment and the limitations of low-resolution sonar image data and small sample sizes, traditional image recognition algorithms have difficulties achieving accurate sonar image recognition.
Zhe Chen +4 more
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Ray-Based Physical Modeling and Simulation of Multibeam Sonar for Underwater Robotics in ROS-Gazebo Framework [PDF]
SensorsWhile sonar sensors are crucial for underwater robotics perception, the key challenge lies in traditional multibeam sonar simulation’s lack of comprehensive physics-based interaction models.
Woen-Sug Choi
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Dynamic margin contrastive learning for open-set recognition in long-tailed sonar imagery [PDF]
Scientific ReportsLong-tail distribution and open-set recognition remain significant challenges in sonar image classification. This study introduces Dynamic Margin Contrastive Learning (DMCL), a novel framework that simultaneously addresses both issues through adaptive ...
Yu Lin, Shuiyuan He, Weidong Luo
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SONAR IMAGE RECOGNITION BASED ON MACHINE LEARNING FRAMEWORK [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 In order to improve the robustness and generalization ability of model recognition, sonar images are enhanced by preprocessing such as conversion coordinates, interpolation, denoising and enhancement, and the transfer learning method under the Caffe ...
M. Dong, H. Qiu, H. Wang, P. Zhi, Z. Xu
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Predicting LiDAR Data From Sonar Images [PDF]
IEEE Access, 2021 Sensors using ultrasonic sound have proven to provide accurate 3D perception in difficult environments where other modalities fail. Several industrial sectors need accurate and reliable sensing in these harsh conditions. The conventional LiDAR/camera approach in many state-of-the-art autonomous navigation methods is limited to environments with optimal
Niels Balemans +2 more
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