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Real-Time Detection

Real-Time Detection and Segmentation of Oceanic Whitecaps via EMA-SE-ResUNet



Oceanic whitecaps are caused by wave breaking and are very important in air–sea interactions. Usually, whitecap coverage is considered a key factor in representing the role of whitecaps. However, the accurate identification of whitecap coverage in videos under dynamic marine conditions is a tough task. An EMA-SE-ResUNet deep learning model was proposed in this study to address this challenge.

Based on a foundation of residual network (ResNet)-50 as the encoder and U-Net as the decoder, the model incorporated efficient multi-scale attention (EMA) module and squeeze-and-excitation network (SENet) module to improve its performance. By employing a dynamic weight allocation strategy and a channel attention mechanism, the model effectively strengthens the feature representation capability for whitecap edges while suppressing interference from wave textures and illumination noise.

The model’s adaptability to complex sea surface scenarios was enhanced through the integration of data augmentation techniques and an optimized joint loss function. By applying the proposed model to a dataset collected by a shipborne camera system deployed during a comprehensive fishery resource survey in the northwest Pacific, the model results outperformed main segmentation algorithms, including U-Net, DeepLabv3+, HRNet, and PSPNet, in key metrics: whitecap intersection over union (IoUW) = 73.32%, pixel absolute error (PAE) = 0.081%, and whitecap F1-score (F1W) = 84.60.

Compared to the traditional U-Net model, it achieved an absolute improvement of 2.1% in IoUW while reducing computational load (GFLOPs) by 57.3% and achieving synergistic optimization of accuracy and real-time performance. This study can provide highly reliable technical support for studies on air–sea flux quantification and marine aerosol generation.

network security, computer networks, data communication, wireless networking, LAN, WAN, VPN, network topology, routing protocols, cybersecurity, firewall protection, cloud networking, IoT connectivity, network infrastructure, bandwidth management, network monitoring, server configuration, IP addressing, network performance, digital communication

#NetworkTechnology, #NetworkSecurity, #DataCommunication, #WirelessNetwork, #LAN, #WAN, #VPN, #Routing, #Cybersecurity, #CloudNetworking, #IoTNetwork, #NetworkInfrastructure, #FirewallProtection, #ServerSetup, #BandwidthControl, #NetworkMonitoring, #IPConfiguration, #DigitalConnectivity, #SmartNetwork, #TechNetwork

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