Patent ID: 8556420
Filing Date: 2013-10-15
Classification: G02C

Abstract:
1. Method for the on-line selection of a virtual eyeglass frame from among a plurality of virtual frames, said method comprising: generating an image giving a representation of a face wearing a selected virtual eyeglass frame, said image being constituted by superimposition of an image of said virtual eyeglass frame and a first image of a face without a frame recorded at the same scale as each other in order to be displayed simultaneously on a screen in such a way as to produce a representation of said face wearing the virtual eyeglass frame; recording a second image of said face wearing a reference frame at said scale; processing said second image displayed at said scale to determine a datum giving a vertical position of said reference frame on said face; adjusting the position of said image of said virtual frame relative to said first image of said face according to said datum determined from said second image of said face; and wherein processing said second displayed image comprises drawing a horizontal line passing approximately through a center of the eyes of said face, projecting horizontally onto a plane of said second image a reference element of predefined length displayed at said scale, between two parts of said reference frame which fit over a nose of said face, which parts are separated by said predefined length, and measuring in the plane of said second image a distance between said horizontal line and said reference element of predefined length, said measured distance forming said datum.