公开(公告)号：US11250580B2

公开(公告)日：2022-02-15

申请号：US16580084

申请日：2019-09-24

Applicant: DENTSPLY SIRONA INC.

Inventor： Marcel Meyer ,  Sascha Schneider ,  Anders Adamson ,  Ruwen Schnabel

IPC: G06K9/00 ,  G06T7/33 ,  G06N20/00 ,  G06N3/08 ,  G06T7/00 ,  G06T17/20

Abstract: A method, system and computer readable storage media for segmenting individual intra-oral measurements and registering said individual intraoral measurements to eliminate or reduce registration errors. An operator may use a dental camera to scan teeth and a trained deep neural network may automatically detect portions of the input images that can cause registration errors and reduce or eliminate the effect of these sources of registration errors.

公开(公告)号：US20210090272A1

公开(公告)日：2021-03-25

申请号：US16580084

申请日：2019-09-24

Applicant: DENTSPLY SIRONA INC.

Inventor： Marcel Meyer ,  Sascha Schneider ,  Anders Adamson ,  Ruwen Schnabel

IPC: G06T7/33 ,  G06T7/00 ,  G06T17/20 ,  G06N3/08 ,  G06N20/00

Abstract: A method, system and computer readable storage media for segmenting individual intra-oral measurements and registering said individual intraoral measurements to eliminate or reduce registration errors. An operator may use a dental camera to scan teeth and a trained deep neural network may automatically detect portions of the input images that can cause registration errors and reduce or eliminate the effect of these sources of registration errors.

公开(公告)号：US20210085238A1

公开(公告)日：2021-03-25

申请号：US16579995

申请日：2019-09-24

Applicant: DENTSPLY SIRONA INC.

Inventor： Ruwen Schnabel ,  Sascha Schneider ,  Anders Adamson ,  Marcel Meyer

IPC: A61B5/00 ,  G06N20/00 ,  G06N3/02 ,  A61C7/00 ,  G06T7/00

Abstract: A method, system and computer readable storage media for defects in images during three-dimensional measurement of teeth. An operator may use a dental camera to scan teeth and a trained deep neural network may automatically detect portions of the input images having defects and generate output information regarding those defects for corrective measures to be taken.

公开(公告)号：US10580134B2

公开(公告)日：2020-03-03

申请号：US16406310

申请日：2019-05-08

Applicant: DENTSPLY SIRONA Inc.

Inventor： Anders Adamson

IPC: G06T7/00 ,  G01B21/04 ,  A61B5/107 ,  A61B5/00 ,  A61C9/00 ,  H04N7/18 ,  H04N13/204 ,  A61B1/247 ,  A61B1/00 ,  G01B11/25

Abstract: A method of imaging a dental object using a dental camera comprising the steps of: recording a plurality of three-dimensional optical images of a dental object using a dental camera; determining whether an overlapping area, formed by at least a partial overlap of the plurality of three-dimensional optical images, satisfies one or more recording requirements; and generating an acoustic sound during the recording using a sound generator; wherein the sound serves as a feedback for the user and imparts to the user information (i) about the current status of a recording of the images and/or (ii) about recording requirements of the dental camera; wherein a speed of movement of the dental camera relative to the object is determined by (i) using a motion sensor on the dental camera or (ii) by analysis of the measured images; and wherein the acoustic sound is generated as a function of the determined speed of movement.

公开(公告)号：US12025427B2

公开(公告)日：2024-07-02

申请号：US17258812

申请日：2019-06-14

Applicant: DENTSPLY SIRONA INC.

Inventor： Konrad Klein ,  Peter Fritz ,  Anders Adamson

IPC: A61B5/00 ,  G01B11/24 ,  G06T7/514 ,  G06T7/55

CPC classification number: G01B11/24 ,  A61B5/0088 ,  G06T7/514 ,  G06T7/55 ,  G06T2207/10024 ,  G06T2207/30036

Abstract: The invention relates to an optical measuring method for the three-dimensional detection of the surface of an object using an optical recording unit. The optical recording unit is moved relative to the object during a first measurement time interval, height maps are successively detected by the recording unit at a recording frequency, and at least some of the detected height maps are each added to an overall height map and displayed. The recording frequency is regulated by control signals during the measurement time interval. The control signals are generated spaced apart in time and for the purposes of producing each control signal, a statistic for the quality of the height map is determined for the respectively last detected height image and used for producing the control signal. The statistic is the overall intensity and/or the maximum intensity and/or the contrast and/or the number of extracted data points and/or a quality of extracted data points and/or the signal-to-noise ratio and/or the contrast of an additionally generated color image.

公开(公告)号：US11879725B2

公开(公告)日：2024-01-23

申请号：US17258836

申请日：2019-06-11

Applicant: DENTSPLY SIRONA INC.

Inventor： Konrad Klein ,  Peter Fritz ,  Anders Adamson

IPC: G01B5/00 ,  A61C19/04 ,  G01B11/24 ,  A61B1/00 ,  A61B1/24

CPC classification number: G01B5/0014 ,  A61B1/00009 ,  A61B1/00194 ,  A61C19/04 ,  G01B11/24 ,  A61B1/24 ,  G01B2210/52

Abstract: The invention relates to an optical measuring method for three-dimensionally capturing the surface of an object by means of an optical capturing unit, wherein the optical capturing unit is moved relative to the object during a first measurement time period, the object is illuminated by the capturing unit with an illumination beam having a light intensity, height images are captured by the capturing unit in succession at a capturing frequency, at least some of the captured height images during the measurement time period are added to form a total height image and the total height image is displayed, and the light intensity and/or the capturing frequency are controlled during the measurement time period by control signals, the control signals being produced at time intervals during the measurement time period and each control signal being produced on the basis of at least one sensor signal of a temperature sensor.

公开(公告)号：US11129522B2

公开(公告)日：2021-09-28

申请号：US16508871

申请日：2019-07-11

Applicant: DENTSPLY SIRONA Inc.

Inventor： Anders Adamson ,  Frank Thiel ,  Ulf Willers

IPC: A61B1/24 ,  A61B5/00 ,  A61C9/00 ,  G01B11/24 ,  G01B9/02 ,  G01B11/02

Abstract: The invention relates to a measurement system for optically measuring an object, comprising a dental camera and an optical attachment. In this case the optical attachment comprises at least one lens, which is shaped and arranged in such a way that the optical attachment has a negative focal length so that a measurement field or a measurement volume of the dental camera is enlarged by the optical attachment.

公开(公告)号：US09607383B2

公开(公告)日：2017-03-28

申请号：US14421271

申请日：2013-08-14

Applicant: DENTSPLY SIRONA Inc.

Inventor： Anders Adamson

IPC: G06K9/00 ,  G06T7/00 ,  A61C9/00 ,  A61B5/00

CPC classification number: G06T7/30 ,  A61B5/004 ,  A61B5/0088 ,  A61B5/4547 ,  A61B5/7425 ,  A61B5/7475 ,  A61B2576/02 ,  A61C9/0053 ,  G06T2207/30036

Abstract: The invention relates to a method for recording individual three-dimensional optical images (2) to form a global image of a dental object (1) which is to be measured. After each individual image (2) is taken by means of a dental camera (3), a computer (8) automatically checks whether an overlapping area (5, 12) between the images which are to be combined meet the recording requirements determined for a correct recording. If the overlapping area (5) meets the recording requirements, the recording is carried out between the images (6, 7) to be combined and a first image sequence (9) is set in motion. Said images of the first image sequence (9) are subsequently combined to form a first cluster (23). If the overlapping area (12) of an image (13) does not meet the recording requirements, the first image sequence (9) is interrupted, an additional second image sequence (14) is automatically started with said image (13). Subsequently, the images of the second image sequence (14) are combined to form a second cluster (24).

公开(公告)号：US11361524B1

公开(公告)日：2022-06-14

申请号：US17211922

申请日：2021-03-25

Applicant: DENTSPLY SIRONA INC.

Inventor： Hong Keun Kim ,  Anders Adamson ,  Ole Jakubik ,  Frederike Franke

IPC: G06T19/20 ,  G06T17/00 ,  G16H50/50 ,  G06N20/00

Abstract: The quality of digital impressions geometry and color but also fluorescence, transillumination, reflection and absorption properties can be inferior to single frame 2D/3D images e.g. due to averaging effects, rendering effects, difficult scanning situation etc. This can lead to difficulties in the dental workflow such as the creation of a preparation margin line or detection of diseases such as caries. By providing a correlated view of high-quality single frame images and corresponding 3D models, the dental workflow can be guided to be completed more efficiently using the single frame images.

公开(公告)号：US11291404B2

公开(公告)日：2022-04-05

申请号：US16579995

申请日：2019-09-24

Applicant: DENTSPLY SIRONA INC.

Inventor： Ruwen Schnabel ,  Sascha Schneider ,  Anders Adamson ,  Marcel Meyer

IPC: G06N20/00 ,  A61B5/00 ,  A61C7/00 ,  G06N3/02 ,  G06T7/00

Abstract: A method, system and computer readable storage media for defects in images during three-dimensional measurement of teeth. An operator may use a dental camera to scan teeth and a trained deep neural network may automatically detect portions of the input images having defects and generate output information regarding those defects for corrective measures to be taken.