公开(公告)号：US20220110729A1

公开(公告)日：2022-04-14

申请号：US17431747

申请日：2020-03-10

Applicant: CARESTREAM DENTAL LLC

Inventor： Yannick GLINEC ,  Victor C. WONG

IPC: A61C13/08 ,  A61C9/00 ,  G01J3/50 ,  G06T7/90

Abstract: A shade matching method for a tooth obtains a plurality of digitized tooth shade references, obtains a three-dimensional (3D) surface representation of a tooth and associated color information defined on the three-dimensional (3D) surface, selects a region on the three-dimensional (3D) surface representation of the tooth, determines a plurality of correspondences with the common tooth shape of all the tooth shade references, computes color difference with each of the tooth shade reference from the plurality of tooth shade references, and records the label corresponding to the shade reference with a smallest difference.

公开(公告)号：US20220351813A1

公开(公告)日：2022-11-03

申请号：US17427734

申请日：2020-02-07

Applicant: TROPHY SAS ,  CARESTREAM DENTAL LLC

Inventor： Jean-Marc INGLESE ,  Edward SHELLARD ,  Yannick GLINEC ,  Xavier RIPOCHE

IPC: G16H15/00 ,  G16H10/60 ,  A61C7/00 ,  G16H30/40

Abstract: At least one embodiment of a method for training automatic tooth charting systems, the method comprising: obtaining, through a communication network, a plurality of electronic dental charts generated by the plurality of tooth charting systems, the plurality of electronic dental charts being related to a plurality of patients; for each of the obtained electronic dental charts: extracting at least a portion of an image representing a tooth or a region of interest and obtaining at least a corresponding item of information characterizing the represented tooth or the represented region of interest; storing the extracted at least a portion of the image and the corresponding item of information in a training data set, training the automatic dental charting system with the training data set.