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

Claim 30:
31. A computer-readable non-transitory storage medium comprising instructions that, upon execution 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 an accuracy of the fit of 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 second measurement points defined on the parametric head model, wherein the first measurement points and the second measurement points have the same spatial coordinates, respectively; and
setting the first measurement points having the spatial coordinates of the second measurement points as the determined first measurement points if the accuracy of the fit is below a threshold value and setting the first measurement points having adjusted spatial coordinates as the determined first measurement points if the accuracy of the fit is or exceeds the threshold value; and
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 comprises 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
wherein fitting the model of the spectacle frame to the 3D model of the person's head includes deforming the model of the spectacle frame.