Patents by Inventor Janos Rohaly

Janos Rohaly has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20160302895
    Abstract: Tools are described for preparing digital dental models for use in dental restoration production processes, along with associated systems and methods. Dental modeling is improved by supplementing views of three-dimensional models with still images of the modeled subject matter. Video data acquired during a scan of the model provides a source of still images that can be displayed alongside a rendered three-dimensional model, and the two views (model and still image) may be synchronized to provide a common perspective of the model's subject matter. This approach provides useful visual information for disambiguating surface features of the model during processing steps such as marking a margin of a prepared tooth surface for a restoration. Interactive modeling tools may be similarly enhanced.
    Type: Application
    Filed: June 29, 2016
    Publication date: October 20, 2016
    Inventors: Janos Rohaly, Robert N. Nazzal, Edward K. Tekeian, ILYA A. Kriveshko, Eric B. Paley
  • Patent number: 9418474
    Abstract: A three-dimensional measurement is refined by warping two-dimensional images of an object from offset camera positions according to a three-dimensional model of the object, and applying any resulting discrepancies to refine the three-dimensional model, or to refine one of a number of three-dimensional measurements used to create the three-dimensional model.
    Type: Grant
    Filed: January 4, 2009
    Date of Patent: August 16, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Janos Rohaly, Ilya A. Kriveshko, Dmitriy A. Dedkov
  • Publication number: 20160051348
    Abstract: The systems and methods disclosed herein employ a scanning system for capturing highly detailed digital dental models. These models may be used within a dentist's office for a wide array of dental functions including quality control, restoration design, and fitting. These models may also, or instead, be transmitted to dental laboratories that may, alone or in collaboration with the originating dentist or other dental professionals, transform the digital model into a physical realization of a dental hardware item.
    Type: Application
    Filed: November 5, 2015
    Publication date: February 25, 2016
    Inventors: Joseph Boerjes, Simon K. J. Schiessl, Michael P. Girard, Micah J. Rosenbloom, Eric B. Paley, Edward K. Tekeian, Steven V. Weeks, David E. Altobelli, Douglas M. Johnston, Janos Rohaly
  • Patent number: 9262864
    Abstract: Video data acquired during a three-dimensional scan of dentition provides a source of still images that can be displayed alongside a rendered three-dimensional model of the dentition, and the two views (model and still image) may be synchronized to provide a common perspective of the model's subject matter. This approach provides useful visual information for disambiguating surface features of the model during interactive model processing steps such as marking a margin of a prepared tooth surface for a restoration.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: February 16, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Janos Rohaly, Robert N. Nazzal, Edward K. Tekeian, Ilya A. Kriveshko, Eric B. Paley
  • Patent number: 9208531
    Abstract: The systems and methods disclosed herein employ a scanning system for capturing highly detailed digital dental models. These models may be used within a dentist's office for a wide array of dental functions including quality control, restoration design, and fitting. These models may also, or instead, be transmitted to dental laboratories that may, alone or in collaboration with the originating dentist or other dental professionals, transform the digital model into a physical realization of a dental hardware item.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: December 8, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Joseph Boerjes, Simon K. J. Schiessl, Michael P. Girard, Micah J. Rosenbloom, Eric B. Paley, Edward K. Tekeian, Steven V. Weeks, David E. Altobelli, Douglas M. Johnston, Janos Rohaly
  • Publication number: 20150002509
    Abstract: Tools are described for preparing digital dental models for use in dental restoration production processes, along with associated systems and methods. Dental modeling is improved by supplementing views of three-dimensional models with still images of the modeled subject matter. Video data acquired during a scan of the model provides a source of still images that can be displayed alongside a rendered three-dimensional model, and the two views (model and still image) may be synchronized to provide a common perspective of the model's subject matter. This approach provides useful visual information for disambiguating surface features of the model during processing steps such as marking a margin of a prepared tooth surface for a restoration. Interactive modeling tools may be similarly enhanced.
    Type: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Inventors: Janos Rohaly, Robert N. Nazzal, Edward K. Tekeian, ILYA A. Kriveshko, Eric B. Paley
  • Patent number: 8866883
    Abstract: Tools are described for preparing digital dental models for use in dental restoration production processes, along with associated systems and methods. Dental modeling is improved by supplementing views of three-dimensional models with still images of the modeled subject matter. Video data acquired during a scan of the model provides a source of still images that can be displayed alongside a rendered three-dimensional model, and the two views (model and still image) may be synchronized to provide a common perspective of the model's subject matter. This approach provides useful visual information for disambiguating surface features of the model during processing steps such as marking a margin of a prepared tooth surface for a restoration.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: October 21, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Janos Rohaly, Robert N. Nazzal, Edward K. Tekeian, Ilya A. Kriveshko, Eric B. Paley
  • Publication number: 20140253717
    Abstract: Continuous measurement of surfaces larger than a sensor is facilitated by the use of a sensor matrix of a clear elastomer and a reflective surface that scrolls, rolls, or otherwise moves over a target surface. A variety of web materials, camera configurations, and handling systems are described to achieve continuous three-dimensional measurement in this context.
    Type: Application
    Filed: March 8, 2014
    Publication date: September 11, 2014
    Applicant: GelSight, Inc.
    Inventors: Edward H. Adelson, Micah K. Johnson, Janos Rohaly
  • Patent number: 8830309
    Abstract: A hierarchical pattern matching process is improved for use in three-dimensional reconstruction by calculating a disparity field for low-resolution data, and using this low-resolution disparity field to estimate the disparity field for higher-resolution images. By pre-warping a template according to the estimated disparity field, improved correlation results can be obtained.
    Type: Grant
    Filed: January 4, 2009
    Date of Patent: September 9, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Janos Rohaly, Ilya A. Kriveshko
  • Publication number: 20140104395
    Abstract: Methods of and systems for three-dimensional digital impression and visualization of objects through an elastomer are disclosed. A method of estimating optical correction parameters for an imaging system include pressing an object of known surface topography against an elastomer and imaging a plurality of views of the surface topography of the object through the elastomer. The method also includes estimating a three-dimensional model of the object based on the plurality of views and estimating optical correction parameters based on a known surface topography of the object and the estimated three-dimensional model. The optical correction parameters correct distortions in the estimated three-dimensional model to better match the known surface topography.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 17, 2014
    Applicant: GELSIGHT, INC.
    Inventors: Janos ROHALY, Micah K. JOHNSON, Edward H. ADELSON
  • Patent number: 8675291
    Abstract: A three-dimensional imaging system uses a single primary optical lens along with various configurations of apertures, refocusing facilities, and the like to obtain three offset optical channels each of which can be separately captured with an optical sensor.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: March 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Janos Rohaly, Douglas P. Hart
  • Patent number: 8675290
    Abstract: A three-dimensional imaging system uses a single primary optical lens along with various configurations of apertures, refocusing facilities, and the like to obtain three offset optical channels each of which can be separately captured with an optical sensor.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: March 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Janos Rohaly, Douglas P. Hart
  • Patent number: 8503763
    Abstract: A family of one-dimensional image signatures is obtained to represent each one of a sequence of images in a number of translational and rotational orientations. By calculating these image signatures as images are captured, a new current view can be quickly compared to historical views in a manner that is less dependent on the relative orientation of a target and search image. These and other techniques may be employed in a three-dimensional reconstruction process to generate a list of candidate images from among which full three-dimensional registration may be performed to test for an adequate three-dimensional match. In another aspect this approach may be supplemented with a Fourier-based approach that is selectively applied to a subset of the historical images.
    Type: Grant
    Filed: January 4, 2009
    Date of Patent: August 6, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Tong Zhang, Ramakrishna Raghavan, Janos Rohaly
  • Patent number: 8454365
    Abstract: The systems and methods disclosed herein employ a scanning system for capturing highly detailed digital dental models. These models may be used within a dentist's office for a wide array of dental functions including quality control, restoration design, and fitting. These models may also, or instead, be transmitted to dental laboratories that may, alone or in collaboration with the originating dentist or other dental professionals, transform the digital model into a physical realization of a dental hardware item.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: June 4, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Joseph Boerjes, Simon K. J. Schiessl, Michael P. Girard, Micah J. Rosenbloom, Eric B. Paley, Edward K. Tekeian, Steven V. Weeks, David E. Altobelli, Douglas M. Johnston, Janos Rohaly
  • Publication number: 20120231421
    Abstract: The systems and methods disclosed herein employ a scanning system for capturing highly detailed digital dental models. These models may be used within a dentist's office for a wide array of dental functions including quality control, restoration design, and fitting. These models may also, or instead, be transmitted to dental laboratories that may, alone or in collaboration with the originating dentist or other dental professionals, transform the digital model into a physical realization of a dental hardware item.
    Type: Application
    Filed: May 22, 2012
    Publication date: September 13, 2012
    Inventors: Joseph Boerjes, Simon K.J. Schiessl, Michael P. Girard, Micah J. Rosenbloom, Eric B. Paley, Edward K. Tekeian, Steven V. Weeks, David E. Altobelli, Douglas M. Johnston, Janos Rohaly
  • Publication number: 20120057000
    Abstract: A three-dimensional imaging system uses a single primary optical lens along with various configurations of apertures, refocusing facilities, and the like to obtain three offset optical channels each of which can be separately captured with an optical sensor.
    Type: Application
    Filed: November 9, 2011
    Publication date: March 8, 2012
    Inventors: Janos Rohaly, Douglas P. Hart
  • Publication number: 20110164810
    Abstract: A family of one-dimensional image signatures is obtained to represent each one of a sequence of images in a number of translational and rotational orientations. By calculating these image signatures as images are captured, a new current view can be quickly compared to historical views in a manner that is less dependent on the relative orientation of a target and search image. These and other techniques may be employed in a three-dimensional reconstruction process to generate a list of candidate images from among which full three-dimensional registration may be performed to test for an adequate three-dimensional match. In another aspect this approach may be supplemented with a Fourier-based approach that is selectively applied to a subset of the historical images.
    Type: Application
    Filed: January 4, 2009
    Publication date: July 7, 2011
    Inventors: Tong Zang, Ramakrishna Raghaven, Janos Rohaly
  • Patent number: 7961954
    Abstract: Improved correlation techniques employ data from forward (template-to-reference) and reverse (reference-to-template) correlation to identify valid correlation peaks, enforce symmetry in correlation peaks, and/or combine forward and reverse correlation data. In embodiments, these techniques eliminate or reduce rms noise in a recovered signal peak location by enforcing correlation peak symmetry. The forward and reverse correlation methods described herein may be used for validation of correlation peaks, detection of outlier data points and improved interpolation, such as for higher accuracy localization of a peak center with sub-pixel resolution.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: June 14, 2011
    Assignee: 3M Innovative Properties Company
    Inventor: Janos Rohaly
  • Patent number: 7956862
    Abstract: Camera motion is determined in a three-dimensional image capture system using a combination of two-dimensional image data and three-dimensional point cloud data available from a stereoscopic, multi-aperture, or similar camera system. More specifically, a rigid transformation of point cloud data between two three-dimensional point clouds may be more efficiently parameterized using point correspondence established between two-dimensional pixels in source images for the three-dimensional point clouds.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: June 7, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Tong Zhang, Janos Rohaly, Steven V. Weeks
  • Patent number: 7912257
    Abstract: The systems and methods disclosed herein provide real time display of three-dimensional dental data acquired intraorally from a dental patient.
    Type: Grant
    Filed: September 3, 2006
    Date of Patent: March 22, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Eric B. Paley, Janos Rohaly, Joseph Boerjes, Douglas P. Hart, Micah J. Rosenbloom, Steven V. Weeks