The invention provides a method for constructing a vertebral three-dimensional geometry and finite element
mixture model, which belongs to the technical field of
processing of medical images. The method comprises the following construction processes of: inputting a vertebral computer
tomography (CT) image; performing three-dimensional reconstruction and three-dimensional
cutting on the CT image to acquire a vertebral three-dimensional image set; establishing a three-dimensional geometric
statistical model, namely defining and manually calibrating vertebral characteristic points, aligning and registering vertebral images, and training a sample set to acquire the
statistical model; and generating a finite
element model, importing the
statistical model, generating a surface
mesh model, and generating a
volume mesh model, wherein the model can be directly imported into
finite element analysis software for
biomechanics analysis. By the method, a vertebral geometrical shape can be precisely described, the accuracy of finite
element analysis results can be ensured, and the precision of vertebral models can be improved. The method is convenient to use, facilitates the scientific measurement of the shapes and the stress of vertebras and can be used for researches related to vertebral columns and the vertebras in the field of surgical
medicine.