A extraction method of offshore raft aquaculture based on high-resolution remote sensing images
Using WorldView-2 high-resolution remote sensing images,this study proposed a SS-UNet network model for raft aquaculture area information extraction.The SS-UNet model introduces the SPM module and the SA module on the"U"structure of the U-Net model,taking into account the shape characteristics of the raft aquaculture area.The test results showed that the SS-UNet model achieved the highest level of accuracy,in which the MIoU and Kappa coefficient reached 91.72%and 0.912 3,respectively.And the model could extract the raft aquaculture areas more accurately,with less phenomena such as omission and misclassification.Compared with the U-Net model,the MIoU and Kappa coefficient of the SS-UNet model were improved by 10.41%and 0.126,respectively,with a very small increase in model complexity.The results showed that the SS-UNet model realized the effective improvement of the result accuracy and extraction performance of raft aquaculture areas in offshore waters in high-resolution remote sensing images.