Gradual change method of three-dimensional mesh model sequence

The invention discloses a gradual change method of a three-dimensional mesh model sequence. The method comprises the following steps that a source mesh model sequence and a target mesh model sequence are constructed respectively; a skeleton driving Cage structure of each mesh model is constructed respectively; the skeleton driving Cage structure comprises a skeleton corresponding to each mesh model and a Cage attached to the skeleton; a section line is arranged at a joint point of the skeleton; according to the section line at the joint point of the skeleton, all the skeletons carry out uniformization segmentation respectively, and a segmentation result is used to carry out cross parameterization on each mesh model in the source mesh model sequence so as to acquire a corresponding compatible mesh model; according to a relation between the source mesh model sequence and the target mesh model sequence and a compatible mesh model sequence, a reconstruction-interpolation mode is used to acquire a final dynamic gradual change mesh model sequence. By using a gradual change method in the invention, geometric interpolation and motion mixing can be simultaneously performed on the different mesh model sequences so as to obtain the new gradual change mesh model sequence. An application scope is wide.