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公开(公告)号：US11529219B2
公开(公告)日：2022-12-20
申请号：US16626977
申请日：2017-06-29
发明人： Chuanmao Fan , Victor C. Wong
摘要： An intraoral scanning apparatus has a mouthpiece and a transport apparatus that defines at least a first curved track within the mouthpiece. An image sensor is movable along the first curved track. A scanner is movable along the first curved track, scanning in synchronization with the image sensor and having an illumination source that has a laser light source and beam-shaping optics in the path of the laser light for forming a linear light pattern. At least one actuator is energizable to move the image sensor and scanner along the first curved track for image acquisition. A control logic processor synchronizes the scanner and image sensor for automated acquisition of surface contour data. A display is in signal communication with the control logic processor to process and display the acquired surface contour data.
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公开(公告)号：US11497402B2
公开(公告)日：2022-11-15
申请号：US16092098
申请日：2016-05-16
发明人： Chuanmao Fan , Victor C. Wong
摘要： A method for acquiring image data obtains, for an intraoral feature, optical coherence tomography (OCT) data in three dimensions wherein at least one dimension is pseudo-randomly or randomly sampled and reconstructs an image volume of the intraoral feature using compressive sensing, wherein data density of the reconstructed image volume is larger than that of the obtained OCT data in the at least one dimension or according to a corresponding transform. The method renders the reconstructed image volume for display.
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公开(公告)号：US20220233275A1
公开(公告)日：2022-07-28
申请号：US17555797
申请日：2021-12-20
发明人： Shoupu CHEN , Wei YE , Xavier RIPOCHE , Delphine REYNARD
摘要： A method for generating a digital model of dentition, executed at least in part by a computer, acquires a 3-D digital mesh that is representative of the dentition along a dental arch, including includes braces, teeth, and gingival tissue. The method modifies the 3-D digital mesh to generate a digital mesh dentition model by processing the digital mesh and automatically detecting one or more initial bracket positions from the acquired mesh, processing the initial bracket positions to identify bracket areas for braces that lie against tooth surfaces, identifying one or more brace wires extending between brackets, removing one or more brackets and one or more wires from the dentition model, and forming a reconstructed tooth surface within the digital mesh dentition model where the one or more brackets have been removed. The modified 3-D digital mesh dentition model is displayed, stored, or transmitted over a network to another computer.
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公开(公告)号：US20210244372A1
公开(公告)日：2021-08-12
申请号：US17252006
申请日：2016-12-16
IPC分类号： A61B6/14 , A61B6/03 , A61B6/00 , G06T7/73 , G06T7/00 , G06T7/11 , G16H30/40 , G16H50/20 , G16H50/50
摘要： Method and/or apparatus embodiments for 3-D cephalometric analysis of a patient, acquires reconstructed volume image data from a computed tomographic scan of a patient's head including one or more dentition elements within the mouth of the patient, and computes one or more cephalometric parameters for the patient according to the reconstructed volume image data and the one or more dentition elements. One or more results generated from cephalometric analysis of the one or more computed cephalometric parameters can be stored, transmitted or displayed. The reconstructed volume image data is updated with 3D surface model from a subsequent optical scan of the patient's dentition and the one or more cephalometric parameters for the patient are re¬ computed based on the updated reconstructed volume image data.
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公开(公告)号：US20200085548A1
公开(公告)日：2020-03-19
申请号：US16494504
申请日：2018-03-14
申请人： Delphine Reynard , Sabrina Capron-Richard , Sebastien Henry , Shoupu Chen , Aude Lagardere , Jean-Pascal Jacob , Carestream Dental Technology Topco Limited
发明人： Delphine Reynard , Sabrina Capron-Richard , Sebastien Henry , Shoupu Chen , Aude Lagardere , Jean-Pascal Jacob
IPC分类号： A61C13/34 , A61C9/00 , A61B6/14 , A61B6/03 , A61B6/00 , G06T19/20 , G06T17/20 , G06T7/00 , G06T7/62 , G06T7/149
摘要： A method for visualizing patient dentition acquires a contour image of patient dentition and segments the contour image to identify one or more segmented teeth. At least one deciduous tooth among the one or more segmented teeth is identified. A virtual model of a target dentition arrangement of the patient dentition is generated, wherein the at least one deciduous tooth is replaced by a replacement permanent tooth.
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公开(公告)号：US10339649B2
公开(公告)日：2019-07-02
申请号：US14851332
申请日：2015-09-11
发明人： Wei Ye , Shoupu Chen , Xavier Ripoche , Delphine Reynard
IPC分类号： A61B5/00 , A61C7/00 , G06T7/00 , G06T7/12 , G06T17/20 , G06T7/155 , G06F3/0482 , G06F3/0484 , G06K9/00
摘要： A computer-implemented method for generating a digital model of an individual intraoral component from a digital model of a patient's dentition obtains a 3-D digital mesh model of the patient's dentition and performs automatic tooth component segmentation operation on the obtained mesh model. Automated segmentation results display. Interactive segmentation of the automated segmentation results is performed according to an operator instruction. Segmentation results are displayed and stored.
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公开(公告)号：US10278584B2
公开(公告)日：2019-05-07
申请号：US15830593
申请日：2017-12-04
发明人： Yannick Glinec , Qinran Chen
IPC分类号： A61B5/00 , G06T7/73 , G06T7/00 , G06T7/10 , G06T11/60 , A61B1/24 , A61B1/00 , A61C9/00 , G06T19/00 , G06T11/00
摘要： A method for three-dimensional imaging stores a first image of field of view from a handheld optical coherence tomography (OCT) scanning device at a first position where a first OCT scan of an object is captured with the scanning device freely operated by a user. A location metric of a second image of field of view of the scanning device is estimated at a second position relative to the first image while the scanning device is moved from the first to the second position. Instructions on providing user feedback are generated based on the location metric. Feedback is provided to indicate if the second position is adequate for a second OCT scan, wherein providing feedback includes providing user perceivable light of a first color to indicate that the second position is adequate and providing user perceivable light of a second color to indicate that the second position is not adequate.
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公开(公告)号：US20190008390A1
公开(公告)日：2019-01-10
申请号：US16067599
申请日：2015-12-30
发明人： Victor WONG , Chuanmao FAN
摘要： A programmable light source has a broadband light emitter disposed to direct light to an optical filter. The optical filter has a collimator lens in the path of the directed light from the emitter, a dispersion optic in the path of incident light from the collimator lens and angularly disposed to form a spectrally dispersed output beam from the incident beam, a focusing lens in the path of the spectrally dispersed output beam, and a spatial light modulator in the focal region of the focusing lens, the spatial light modulator disposed to reflect sequential spectral portions of the spectrally dispersed output beam back toward the focusing lens.
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公开(公告)号：US20190000412A1
公开(公告)日：2019-01-03
申请号：US16060853
申请日：2015-12-08
发明人： Victor Wong , Chuanmao Fan
摘要： Exemplary method and apparatus embodiments according to the applications can provide calibration of a dental scanning device. An exemplary dental apparatus can include a sensing apparatus including at least one lens and a sensor that is configured to obtain one or more images of at least one surface position, and a calibration target including a spatial light modulator configured to form a prescribed set of calibration patterns, and whose display plane corresponds to the at least one surface position.
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公开(公告)号：US10120083B2
公开(公告)日：2018-11-06
申请号：US14289970
申请日：2014-05-29
摘要： A storage phosphor panel can include an extruded inorganic storage phosphor layer including a thermoplastic polyolefin and an inorganic storage phosphor material, where the extruded inorganic storage phosphor panel has a DQE comparable to that of a traditional extruded inorganic solvent coated inorganic storage phosphor screen. Also disclosed is an inorganic storage phosphor detection system including an extruded inorganic storage phosphor panel that can include an extruded inorganic storage phosphor layer including a thermoplastic olefin and an inorganic storage phosphor material; and photodetector(s) coupled to the extruded inorganic storage phosphor panel to detect photons generated from the extruded inorganic storage phosphor panel. Further disclosed is a method of making an extruded inorganic storage phosphor panel that can include providing thermoplastic particles including at least one thermoplastic polyolefin and an inorganic storage phosphor material; and melt extruding the thermoplastic particles to form an extruded inorganic storage phosphor layer.
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