Image recognition method based on marine search and rescue and related device

The invention discloses an image recognition method based on marine search and rescue. The method comprises the steps that a target image of a target marine area is acquired; and a YOLO model is called to lock a target to be searched and rescued in the target image, wherein the YOLO model comprises a residual block, the residual block comprises a shallow DBL assembly, the shallow DBL assembly comprises a shallow convolution layer, a batch processing normalization layer, an instance normalization layer and an activation function layer, the batch processing normalization layer and the instance normalization layer are both connected with the shallow convolution layer, the batch processing normalization layer processes a first channel number of channels, and the instance normalization layer processes a second channel number of channels. The instance normalization layer is inserted into the shallow network of the residual block of the YOLO model, so that the feature description capability of the YOLO model can be