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1. (WO2018138149) COMPUTER-IMPLEMENTED METHOD FOR DETERMINING A REPRESENTATION OF A RIM OF A SPECTACLES FRAME OR A REPRESENTATION OF THE EDGES OF THE SPECTACLE LENSES

Pub. No.:    WO/2018/138149    International Application No.:    PCT/EP2018/051729
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Thu Jan 25 00:59:59 CET 2018
IPC: G02C 13/00
Applicants: CARL ZEISS VISION INTERNATIONAL GMBH
CARL ZEISS AG
Inventors: NIEUWENHUIS, Claudia
WOJEK, Christian
SCHWARZ, Oliver
Title: COMPUTER-IMPLEMENTED METHOD FOR DETERMINING A REPRESENTATION OF A RIM OF A SPECTACLES FRAME OR A REPRESENTATION OF THE EDGES OF THE SPECTACLE LENSES
Abstract:
The invention relates to a computer-implemented method for determining a representation of a rim of a spectacles frame or a representation of the edges of the spectacle lenses, wherein at least two calibrated images taken from different viewing angles of a head wearing the spectacles frame or the spectacles are provided, and wherein data for at least portions of the rims of the spectacles frame or the edges of the lenses are detected in each image. According to the invention, a three-dimensional model of the spectacles frame or the spectacles is provided, based on geometric parameters, and the geometric parameters are optimised to adapt the model to the detected edges.