The invention requests to protect a
brain tumor segmentation
network method in a missing mode based on mode
perception, aims to solve the problem of missing
modes in multi-mode MRI data, and belongs to the technical field of
computer vision and medical
image processing. The method comprises the following steps: step 1, providing a dynamic sampling
encoder module which dynamically extracts available
modal features and explicitly fills missing
modal information through cross-
modal feature mapping to enhance the robustness of a model; 2, a modal
perception attention fusion module is designed, the module combines local and global attention mechanism adaptive fusion features, and the long-
tail tumor region segmentation capability is further improved. And step 3, a two-stage training strategy is designed and comprises self-supervised modal reconstruction pre-training and supervised segmentation
fine tuning, and the self-supervised modal reconstruction pre-training and the supervised segmentation
fine tuning are supervised by a double-task
loss function so as to optimize the network to adapt to various missing modal scenes.