US 11,960,146 B2
Fitting of glasses frames including live fitting
Cliff Mercer, Palo Alto, CA (US); Ebube Anizor, Oakland, CA (US); Tenzile Berkin Cilingiroglu, Fremont, CA (US); and Trevor Noel Howarth, San Francisco, CA (US)
Assigned to DITTO TECHNOLOGIES, INC., Oakland, CA (US)
Filed by Ditto Technologies, Inc., Oakland, CA (US)
Filed on Feb. 19, 2021, as Appl. No. 17/180,541.
Claims priority of provisional application 62/979,968, filed on Feb. 21, 2020.
Prior Publication US 2021/0264684 A1, Aug. 26, 2021
Int. Cl. G06T 15/00 (2011.01); G02C 13/00 (2006.01); G06T 7/55 (2017.01); G06T 7/73 (2017.01); G06T 7/80 (2017.01); G06T 11/60 (2006.01); G06T 19/20 (2011.01); G06V 10/75 (2022.01); G06V 40/16 (2022.01)
CPC G02C 13/003 (2013.01) [G06T 7/55 (2017.01); G06T 7/73 (2017.01); G06T 7/80 (2017.01); G06T 11/60 (2013.01); G06T 19/20 (2013.01); G06V 10/751 (2022.01); G06V 40/171 (2022.01); G06T 2207/10024 (2013.01); G06T 2207/10028 (2013.01); G06T 2207/30201 (2013.01); G06T 2219/2016 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A system, comprising:
a processor configured to:
determine an event associated with updating a current model of a user's face;
in response to the event, use a set of historical recorded frames of the user's face to update the current model of the user's face;
obtain a newly recorded frame of the user's face;
use the current model of the user's face to generate a corresponding image of a glasses frame;
determine a set of computed bridge points, wherein determining the set of computed bridge points comprises:
determining a face normal vector using at least three points from the current model of the user's face;
determining a bridge shift value based on two internal eyebrow points and two internal eye corners from the current model of the user's face; and
determining the set of computed bridge points based on the face normal vector and the bridge shift value;
present the image of the glasses frame over the newly recorded frame of the user's face in an initial placement based on the set of computed bridge points; and
modify the initial placement of the glasses frame over the newly recorded frame of the user's face based on a determined set of morphed nose curve points, the morphed nose curve points determined by moving a predetermined set of points along a nose curve of a generic face model to match corresponding locations on the current model of the user's face; and
a memory coupled to the processor and configured to provide the processor with instructions.