Author

Guo-Jun Zhai

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Open access Sep 2026

Seafloor Topography Prediction from Altimetry-Derived Gravity Data Using a Wavelet-Assisted and High-Frequency Enhancement Neural Network

Seafloor topography (ST) has important significance for earth science research, marine resource exploration and underwater navigation. The conventional ST inversion methods are limited by linear approximation and poor small-scale topographic feature prediction. This study proposes a novel Wavelet-Assisted and High-Freq...

Shuai-Qi Wang, Shao-Feng Bian, Guo-Jun Zhai et al. · Remote Sensing · 0 citations

Review Open access Aug 2026

A Multi-Feature Early Fusion Network with Domain-Specific Contrastive Representation and Attention Mechanism for Side-Scan Sonar Target Detection

Accurate target detection in side-scan sonar imagery is important for marine resource investigation, underwater infrastructure inspection, and maritime security. However, Side-scan sonar images are often affected by low contrast, acoustic speckle, weak target boundaries, and cluttered seabed backgrounds, which make tar...

Junhui Zhu, Hou-Pu Li, Shao-Feng Bian et al. · Applied Sciences · 0 citations