期刊
IEEE JOURNAL OF OCEANIC ENGINEERING
卷 46, 期 1, 页码 236-260出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JOE.2019.2963041
关键词
Machine learning; neural networks; pattern recognition; synthetic aperture sonar
资金
- NATO Allied Command Transformation
By using tiny CNNs with significantly fewer parameters, this study demonstrates classification performance that matches or even surpasses that of human domain experts. The research represents the first large-scale classification study in the sonar domain, showing that CNNs have strong generalization ability in challenging environments, which will significantly impact their utilization in the underwater remote-sensing community.
Efficient convolutional neural networks (CNNs) are designed and trained for an underwater target classification task with synthetic aperture sonar (SAS) imagery collected at sea. The main contribution is demonstrating that classification performance that matches, and even surpasses, the level achievable by a human domain expert obtained from tiny CNNs with three to six orders of magnitude fewer parameters than have traditionally been used in the literature. In doing so, this work represents the first large-scale classification study in the sonar domain to establish a favorable comparison between automated algorithm performance and human ability. Extensive experimental results on challenging real-world SAS image data sets collected in diverse environments and conditions demonstrate that the CNNs possess strong generalization ability. These findings should significantly impact the manner in which CNNs are utilized in the underwater remote-sensing community. To wit, the tiny CNNs proposed here provide a blueprint for achieving excellent classification performance even with limited computing power or limited data.
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