UNet-NNI: A Collaborative Inpainting Method Based on Deep-Sea Multibeam Backscatter Intensity Images (opens in new tab)

The long acoustic path and the complexity of deep-sea environments make it difficult to obtain complete and reliable multibeam backscatter intensity data, often resulting in central beam anomalies and/or missing and erroneous measurements. To address this challenge, this study developed a joint U-shaped network (UNet)-nearest neighbor interpolation (NNI) inpainting method for deep-sea multibeam backscatter intensity images. First, a UNet-multiscale channel spatial attention (MCSA) model combi...