公开(公告)号：US20180185125A1

公开(公告)日：2018-07-05

申请号：US15522523

申请日：2015-10-27

Applicant: Dental Monitoring S.A.S.

Inventor： Philippe SALAH ,  William AYACHE ,  Laurent DEBRAUX ,  Guillaume GHYSELINCK ,  Thomas PELLISSARD

IPC: A61C9/00 ,  A61B5/00 ,  G06T7/55 ,  G06T7/246 ,  G06T7/00 ,  G06K9/62

CPC classification number: A61C9/0053 ,  A61B1/00009 ,  A61B1/32 ,  A61B5/0088 ,  A61B5/064 ,  A61B5/4547 ,  A61B5/742 ,  A61B2576/02 ,  A61C7/002 ,  A61C9/0046 ,  A61C11/00 ,  A61C19/066 ,  A61C19/10 ,  A61C2007/004 ,  G01J3/00 ,  G01J3/508 ,  G01J3/52 ,  G06K9/00 ,  G06K9/00214 ,  G06K9/6202 ,  G06K2209/05 ,  G06T7/0012 ,  G06T7/251 ,  G06T7/33 ,  G06T7/55 ,  G06T7/73 ,  G06T2207/30004 ,  G06T2207/30036

Abstract: A method for monitoring the shape of teeth including: producing a three-dimensional digital model of at least one portion of an arch of the patient or “initial reference model”; acquiring at least one two-dimensional image of the arches, referred to as “updated image”, under actual acquisition conditions; analysing each updated image and producing an updated map relating to a piece of discriminating information; optionally determining rough virtual acquisition conditions that approximate the actual acquisition conditions; searching each updated image for a final reference model corresponding to the shape of the teeth, and optionally to the positioning of the teeth, during the acquisition of the updated image; and comparing the shapes of the initial reference model and of the reference model obtained at the end of the preceding steps, referred to as “final reference model”, in order to determine the deformation and/or the movement of teeth between steps a) and b).

公开(公告)号：US20170325910A1

公开(公告)日：2017-11-16

申请号：US15522430

申请日：2015-10-27

Applicant: DENTAL MONITORING S.A.S.

Inventor： Philippe SALAH ,  William AYACHE ,  Laurent DEBRAUX ,  Guillaume GHYSELINCK ,  Thomas PELLISSARD

IPC: A61C7/00 ,  A61C9/00 ,  A61C11/00

CPC classification number: A61C9/0053 ,  A61B1/00009 ,  A61B1/32 ,  A61B5/0088 ,  A61B5/064 ,  A61B5/4547 ,  A61B5/742 ,  A61B2576/02 ,  A61C7/002 ,  A61C9/0046 ,  A61C11/00 ,  A61C19/066 ,  A61C19/10 ,  A61C2007/004 ,  G01J3/00 ,  G01J3/508 ,  G01J3/52 ,  G06K9/00 ,  G06K9/00214 ,  G06K9/6202 ,  G06K2209/05 ,  G06T7/0012 ,  G06T7/251 ,  G06T7/33 ,  G06T7/55 ,  G06T7/73 ,  G06T2207/30004 ,  G06T2207/30036

Abstract: A method for optimizing initial discriminating information extracted from a two-dimensional image of the patient dental arches, referred to as “acquired image”, by a three-dimensional digital reference model of at least one portion of a patient arch, the method including the steps: C1. assessing quality of the initial discriminating information and quality threshold, filtering to keep only the initial discriminating information that has quality higher than the quality threshold, and defining “the discriminating information to be tested” as the initial discriminating information selected; C2. testing consistency between the discriminating information to be tested and reference model; C3. assessing test result and, in accordance with the assessment: adding discriminating information that was not kept to the discriminating information to be tested and/or deleting discriminating information from the discriminating information to be tested, and then returning to step C2. or; defining the optimal discriminating information as the discriminating information to be tested.