Patents by Inventor Samuel W. Peterson

Samuel W. Peterson 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).

  • Patent number: 9824492
    Abstract: Techniques for generating a hollow model from a medical image are disclosed herein. In an example, a hollow model may be created within a medical imaging visualization application through the generation of a mask of an interior space of a segmented anatomical structure, the extrusion of a shell mask from the mask of the interior space, and the generation of a visualization of the shell mask within the medical imaging visualization application. For example, the mask may be provided as a layer in the medical imaging visualization application, allowing a user to visualize the produced shell mask of the hollow model from the perspective of the medical imaging. In further examples, the hollow model generation techniques may be used with techniques for shell region modifications, variable shell thickness, multiple shell layer, and trimming of shell endpoints.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 21, 2017
    Assignee: Vital Images, Inc.
    Inventors: Samuel W. Peterson, Pascal Salazar-Ferrer, Yan Yang
  • Publication number: 20170278301
    Abstract: Techniques for generating a hollow model from a medical image are disclosed herein. In an example, a hollow model may be created within a medical imaging visualization application through the generation of a mask of an interior space of a segmented anatomical structure, the extrusion of a shell mask from the mask of the interior space, and the generation of a visualization of the shell mask within the medical imaging visualization application. For example, the mask may be provided as a layer in the medical imaging visualization application, allowing a user to visualize the produced shell mask of the hollow model from the perspective of the medical imaging. In further examples, the hollow model generation techniques may be used with techniques for shell region modifications, variable shell thickness, multiple shell layer, and trimming of shell endpoints.
    Type: Application
    Filed: March 24, 2016
    Publication date: September 28, 2017
    Inventors: Samuel W. Peterson, Pascal Salazar-Ferrer, Yan Yang
  • Patent number: 8335366
    Abstract: A method including searching image data corresponding to a series of axial image slices with a processor, searching axial image slices from a starting image slice and calculating a confidence score that an image slice includes a cross-section image of an aorta, identifying an image slice containing at least one seed disk, including an ascending aorta seed disk, from candidate image slices identified according to the confidence score, and growing a 3D segmentation of the ascending aorta by stacking ascending aorta image disks included in consecutive image slices beginning from the ascending aorta seed disk.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 18, 2012
    Assignee: Vital Images, Inc.
    Inventors: Samuel W. Peterson, Marek Brejl
  • Patent number: 8249687
    Abstract: A method of operating on volumetric imaging data representing organ anatomy includes determining whether a polyp location within a specified range from a viewing point is visible, or hidden by an anatomical feature, and marking the polyp as visible or hidden with a viewable indicator.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: August 21, 2012
    Assignee: Vital Images, Inc.
    Inventors: Samuel W. Peterson, Thomas J. Gleeson, Marek Brejl, Marguerite Kirkby
  • Publication number: 20110280462
    Abstract: A method including searching image data corresponding to a series of axial image slices with a processor, searching axial image slices from a starting image slice and calculating a confidence score that an image slice includes a cross-section image of an aorta, identifying an image slice containing at least one seed disk, including an ascending aorta seed disk, from candidate image slices identified according to the confidence score, and growing a 3D segmentation of the ascending aorta by stacking ascending aorta image disks included in consecutive image slices beginning from the ascending aorta seed disk.
    Type: Application
    Filed: June 30, 2011
    Publication date: November 17, 2011
    Applicant: Vital Images, Inc.
    Inventors: Samuel W. Peterson, Marek Brejl
  • Patent number: 7991210
    Abstract: A method including searching image data corresponding to a series of axial image slices with a processor, searching axial image slices from a starting image slice and calculating a confidence score that an image slice includes a cross-section image of an aorta, identifying an image slice containing at least one seed disk, including an ascending aorta seed disk, from candidate image slices identified according to the confidence score, and growing a 3D segmentation of the ascending aorta by stacking ascending aorta image disks included in consecutive image slices beginning from the ascending aorta seed disk.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: August 2, 2011
    Assignee: Vital Images, Inc.
    Inventors: Samuel W. Peterson, Marek Brejl
  • Patent number: 7929748
    Abstract: This document discusses, among other things, systems and methods for efficiently calculating a colon segmentation from one or more candidate virtual three-dimensional objects. A sequence of image scans are analyzed and candidate segments are identified. Landmark segments are identified from the candidate segments. A characteristic path is generated for each candidate segment. The paths are joined using a cost network and reoriented to be consistent with a typical flythrough path. The connected path is then used to generate a continuous volumetric virtual object.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: April 19, 2011
    Assignee: Vital Images, Inc.
    Inventors: Samuel W. Peterson, Marek Brejl, Annapoorani Gothandaraman
  • Publication number: 20090238431
    Abstract: This document discusses, among other things, systems and methods for efficiently calculating a colon segmentation from one or more candidate virtual three-dimensional objects. A sequence of image scans are analyzed and candidate segments are identified. Landmark segments are identified from the candidate segments. A characteristic path is generated for each candidate segment. The paths are joined using a cost network and re-oriented to be consistent with a typical flythrough path. The connected path is then used to generate a continuous volumetric virtual object.
    Type: Application
    Filed: June 3, 2009
    Publication date: September 24, 2009
    Inventors: Samuel W. Peterson, Marek Brejl, Annapoorani Gothandaraman
  • Patent number: 7590272
    Abstract: This document discusses, among other things, systems and methods for efficiently calculating a registration of multiple characteristic paths of a virtual three-dimensional object. Each path of discrete points is transformed into a piecewise linear parameterization as a function of path length. The paths are smoothed and normalized. The shorter path is partitioned into a number of discrete subintervals. The subintervals are mapped to the longer path using a minimization function that minimizes a cost function resulting in a locally optimal registration. The shorter path is incrementally positioned along the longer path and the minimization is attempted at each position. When the shorter path cannot be shifted any farther, the globally optimal registration is returned.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: September 15, 2009
    Assignee: Vital Images, Inc.
    Inventors: Marek Brejl, Samuel W. Peterson, Zhujiang Cao
  • Patent number: 7574029
    Abstract: This document discusses, among other things, systems and methods for efficiently calculating a colon segmentation from one or more candidate virtual three-dimensional objects. A sequence of image scans are analyzed and regions that represent air-filled objects and tagged-stool are identified as candidate segments. A characteristic path is generated for each candidate segment. The paths are joined using a cost network and re-oriented to be consistent with a typical flythrough path. The connected path is then used to generate a continuous volumetric virtual object.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: August 11, 2009
    Assignee: Vital Images, Inc.
    Inventors: Samuel W. Peterson, Marek Brejl, Annapoorani Gothandaraman