The invention provides a combined and deconstructed block matching learning anatomical consistency self-supervision method and
system, and the method comprises the steps: generating a multi-scale
cutting block from an original image through a unique learning
branch, extracting block embedding and global embedding through a student
encoder and a teacher
encoder, obtaining output embedding through the projection of a unique head, and carrying out the self-supervision of the block matching learning anatomical consistency. Calculating
cross entropy loss; dividing an image block into grids through a consistency learning
branch, extracting two overlapped
cutting blocks, calculating an embedded correlation matrix, and optimizing
local consistency based on step loss; through combination and
decomposition learning branches,
cutting blocks of different scales are extracted, combination learning and
decomposition learning are carried out respectively, a combination matching matrix and a
decomposition matching matrix are calculated, and combination and decomposition consistency is optimized based on
cross entropy loss; and alternately training the uniqueness learning
branch, the consistency learning branch and the combination and decomposition learning branch according to a preset rule by adopting a cyclic pre-training strategy.