Three-dimensional segmentation method and device based on medical image, equipment and storage medium

The invention relates to a three-dimensional segmentation method and device based on a medical image, equipment and a storage medium, and the method comprises the steps: displaying a medical image sequence of a medical object, and the medical image sequence comprises multiple layers of medical images; in response to a first operation in a first direction, adjusting a window width of the medical image, and in response to a second operation in a second direction, adjusting a window level of the medical image; according to the window width, the window level and the original pixel value of each pixel point in the medical image, the gray value of each pixel point is updated according to a preset mapping relation; based on the updated medical image, generating contour information in the multi-layer medical image by adopting a path search algorithm; and performing three-dimensional reconstruction according to the contour information in the multi-layer medical image to obtain a three-dimensional segmentation result o