Patents by Inventor Golshan Golnari

Golshan Golnari 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).

  • Detecting tooth wear using intra-oral 3D scans
    Patent number: 9626462
    Abstract: A method for detecting tooth wear using digital 3D models of teeth taken at different times. The digital 3D models of teeth are segmented to identify individual teeth within the digital 3D model. The segmentation includes performing a first segmentation method that over segments at least some of the teeth within the model and a second segmentation method that classifies points within the model as being either on an interior of a tooth or on a boundary between teeth. The results of the first and second segmentation methods are combined to generate segmented digital 3D models. The segmented digital 3D models of teeth are compared to detect tooth wear by determining differences between the segmented models, where the differences relate to the same tooth to detect wear on the tooth over time.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: April 18, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Guruprasad Somasundaram, Evan J. Ribnick, Ravishankar Sivalingam, Aya Eid, Theresa M. Meyer, Golshan Golnari, Anthony J. Sabelli
  • METHOD OF ALIGNING INTRA-ORAL DIGITAL 3D MODELS
    Publication number: 20160070821
    Abstract: Methods for aligning a digital 3D model of teeth represented by a 3D mesh to a desired orientation within a 3D coordinate system. The method includes receiving the 3D mesh in random alignment and changing an orientation of the 3D mesh to align the digital 3D model of teeth with a desired axis in the 3D coordinate system. The methods can also detect a gum line in the digital 3D model to remove the gingiva from the model.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 10, 2016
    Inventors: Guruprasad Somasundaram, Evan J. Ribnick, Ravishankar Sivalingam, Shannon D. Scott, Golshan Golnari, Aya Eid
  • DETECTING TOOTH WEAR USING INTRA-ORAL 3D SCANS
    Publication number: 20160004811
    Abstract: A method for detecting tooth wear using digital 3D models of teeth taken at different times. The digital 3D models of teeth are segmented to identify individual teeth within the digital 3D model. The segmentation includes performing a first segmentation method that over segments at least some of the teeth within the model and a second segmentation method that classifies points within the model as being either on an interior of a tooth or on a boundary between teeth. The results of the first and second segmentation methods are combined to generate segmented digital 3D models. The segmented digital 3D models of teeth are compared to detect tooth wear by determining differences between the segmented models, where the differences relate to the same tooth to detect wear on the tooth over time.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 7, 2016
    Inventors: Guruprasad Somasundaram, Evan J. Ribnick, Ravishankar Sivalingam, Aya Eid, Theresa M. Meyer, Golshan Golnari, Anthony J. Sabelli