Image segmentation method and device, computer equipment, storage medium and program product

The invention relates to an image segmentation method and device, computer equipment, a storage medium and a program product, and the method comprises the steps: obtaining a to-be-segmented three-dimensional medical image, carrying out the coarse segmentation of the to-be-segmented three-dimensional medical image, and obtaining a coarse segmentation region of interest in the to-be-segmented three-dimensional medical image; extracting space coordinate information of the roughly segmented region of interest, and constructing first point cloud data; according to the first point cloud data and the to-be-segmented three-dimensional medical image, performing fine segmentation processing on the coarse segmentation region of interest to obtain a fine segmentation region of interest; and constructing second point cloud data according to the fine segmentation region-of-interest, and performing classification processing on the fine segmentation region-of-interest according to the second point cloud data to obtain a targ