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

Claim 28:
29. A non-transitory storage medium storing 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;
defining second measurement points on a standard head of a parametric head model;
fitting the parametric head model to the 3D model of the person's head;
determining first measurement points on the 3D model of the head based on positions of the 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;
determining an accuracy of the fit of the parametric head model to the 3D model of the person's head;
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;
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;
providing fitting guidelines of the spectacle frame; and
fitting a model of a spectacle frame to the 3D model of the person's head based on the determined first measurement points.