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1.发明授权公开(公告)号：US11412993B2
公开(公告)日：2022-08-16
申请号：US15742556
申请日：2016-07-08
Applicant: DENTSPLY SIRONA inc.
Inventor： Severin Stalder , Markus Berner , Konrad Klein
Abstract: A system for scanning anatomical structures and for visualizing the scanning result, wherein the system includes an intraoral scanner, which intraorally captures an image of the anatomical structures, an extraoral detection unit, which detects a spatial position of the intraoral scanner relative to an observer or a person conducting the scan, and a computing unit, which, during the scanning procedure, connects the scanner with a screen and the detection unit and generates a scanning result based on the intraorally captured image of the anatomical structures and the detected spatial position of the intraoral scanner relative to the observer, and which, during pauses in the scanning procedure, estimates the position, orientation and scaling of the anatomical structures and, as a scanning result, generates an image of the anatomical structures corresponding to the estimation, and wherein the screen displays the scanning result generated by the computing unit.
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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
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.
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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
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.
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