Patent ID: 11915381
Assignee: CARL ZEISS AG
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. A non-transitory storage medium comprising a computer program having instructions that, upon execution of the program by a computer, cause the computer to carry out the following steps:
providing a 3D model of a person's head;
providing a parametric head model having second measurement points;
fitting the parametric head model to the 3D model of the person's head;
determining first measurement points on the 3D model of the person's head based on the second measurement points defined on the parametric head model,
wherein the second measurement points are defined on a standard head of the parametric head model, wherein determining the first measurement points comprises transferring a second features defined on the standard head to the fitted parametric head model in accordance with the fitting;
fitting a model of a spectacle frame to the 3D model of the person's head based on the determined first measurement points,
wherein determining the first measurement points additionally includes utilizing the transferred second measurement points as the first measurement points or projecting the second measurement points onto the 3D model of the person's head; and
calculating at least one further measurement point for the 3D model based on the first measurement points,
wherein the calculation of the at least one further measurement point includes at least one of a linear combination of a set of first measurement points or am extrapolation based on the first measurement points, and
wherein the parametric head model has a greater smoothness than the 3D model of the person's head.