Patents by Inventor William C. Walton

William C. Walton 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: 11657497
    Abstract: A method of identifying potential lesions in mammographic images may include operations executed by an image processing device including receiving first image data of a first type, receiving second image data of a second type, registering the first image data and the second image data by employing a CNN using pixel level registration or object level registration, determining whether a candidate detection of a lesion exists in both the first image data and the second image data based on the registering of the first image data and the second image data, and generating display output identifying the lesion.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: May 23, 2023
    Assignee: The Johns Hopkins University
    Inventors: William C. Walton, Seung-Jun Kim
  • Patent number: 11361868
    Abstract: A method for characterizing and locating abnormal tissue in an area of interest in a body is provided. The method may include receiving first and second modality examination data including a plurality of first and second modality examination data segments of the area of interest and determining, by evaluating each first and second modality examination data segment, a set of modality detection candidates based on the first and second modality examination data and a first and second modality feature likelihood model.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: June 14, 2022
    Assignee: The Johns Hopkins University
    Inventors: David W. Porter, William C. Walton, Keith S. Peyton, Susan C. Harvey, Benjamin M W Tsui
  • Publication number: 20200311923
    Abstract: A method of identifying potential lesions in mammographic images may include operations executed by an image processing device including receiving first image data of a first type, receiving second image data of a second type, registering the first image data and the second image data by employing a CNN using pixel level registration or object level registration, determining whether a candidate detection of a lesion exists in both the first image data and the second image data based on the registering of the first image data and the second image data, and generating display output identifying the lesion.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Inventors: William C. Walton, Seung-Jun Kim
  • Publication number: 20190057778
    Abstract: A method for characterizing and locating abnormal tissue in an area of interest in a body is provided. The method may include receiving first and second modality examination data including a plurality of first and second modality examination data segments of the area of interest and determining, by evaluating each first and second modality examination data segment, a set of modality detection candidates based on the first and second modality examination data and a first and second modality feature likelihood model.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 21, 2019
    Inventors: David W. Porter, William C. Walton, Keith S. Peyton, Susan C. Harvey, Benjamin MW Tsui
  • Patent number: 9652674
    Abstract: An ice analyzer includes processing circuitry configured to receive a radiometer image including a geographic area including ice, receive a radar image including at least a portion of the geographic area, perform ice/water discrimination of the radiometer image and the radar image, generate a passive ice/water mask and an active ice/water mask based on the ice/water discrimination, merge the passive ice/water mask and the active ice/water mask into a typing mask, and type the ice based on the typing mask.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: May 16, 2017
    Assignee: The Johns Hopkins University
    Inventors: Mary R. Keller, Christopher M. Gifford, William C. Walton, Nathaniel S. Winstead
  • Publication number: 20160125586
    Abstract: An ice analyzer includes processing circuitry configured to receive a radiometer image including a geographic area including ice, receive a radar image including at least a portion of the geographic area, perform ice/water discrimination of the radiometer image and the radar image, generate a passive ice/water mask and an active ice/water mask based on the ice/water discrimination, merge the passive ice/water mask and the active ice/water mask into a typing mask, and type the ice based on the typing mask.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 5, 2016
    Inventors: Mary R. Keller, Christopher M. Gifford, William C. Walton, Nathaniel S. Winstead
  • Patent number: 8908919
    Abstract: A detection system includes processing circuitry configured to receive overhead image data divided into a plurality of image chips and receive metadata associated with the image data. The metadata includes ground sample distance information associated with the image data and provides an indication of ground area represented by each pixel within the image chips. The processing circuitry is further configured to screen the image chips for candidate detections based on a multi-stage screening process and determine whether to classify candidate detections as target detections. The process includes an intensity based screening stage, an object extraction stage that employs binary shape features to extract objects from detect positions identified based on an output of the intensity based screening stage, and a candidate detection identification stage employing template based and structural feature criteria to identify candidate detections from an output of the object extraction stage.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: December 9, 2014
    Assignee: The Johns Hopkins University
    Inventors: William C. Walton, Christopher M. Gifford, Marc A. Kolodner, Donald A. Ruffle
  • Publication number: 20130322742
    Abstract: A detection system includes processing circuitry configured to receive overhead image data divided into a plurality of image chips and receive metadata associated with the image data. The metadata includes ground sample distance information associated with the image data and provides an indication of ground area represented by each pixel within the image chips. The processing circuitry is further configured to screen the image chips for candidate detections based on a multi-stage screening process and determine whether to classify candidate detections as target detections. The process includes an intensity based screening stage, an object extraction stage that employs binary shape features to extract objects from detect positions identified based on an output of the intensity based screening stage, and a candidate detection identification stage employing template based and structural feature criteria to identify candidate detections from an output of the object extraction stage.
    Type: Application
    Filed: May 14, 2013
    Publication date: December 5, 2013
    Applicant: The Johns Hopkins University
    Inventors: William C. Walton, Christopher M. Gifford, Marc A. Kolodner, Donald A. Ruffle
  • Patent number: 7003155
    Abstract: A system and method of automatically creating a NIMA certified line drawing from a National Imagery Transmission Format (NITF) image file. A grayscale (electro-optical) image and its associated metadata from a NITF file is input into the computer based system. Pre-screening operations are performed on the metadata prior to image processing to ensure that National Imagery and Mapping Agency (NIMA) requirements and criteria are met. Image processing algorithms then perform filtering, encoding, edge detection, and custom edge pattern classification procedures to create a declassified line drawing. The line drawing can then be saved in any number of standard commercial file formats.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: February 21, 2006
    Assignee: The John Hopkins University
    Inventors: William C. Walton, Cash J. Costello, Elissa M. Weidaw
  • Publication number: 20040149176
    Abstract: A table with a first work surface and a second lower work surface on a trundle table assembly. The first work surface having a table lip extending upward around the perimeter of the table while the trundle table assembly work surface does not have a lip on either end. The trundle table assembly providing a second and lower work surface so that caregivers can avoid lifting heavier children or children in wheelchairs to the height necessary to clear the table lip around the first work surface. One use for the table with trundle table assembly is a diaper changing table.
    Type: Application
    Filed: January 21, 2004
    Publication date: August 5, 2004
    Applicant: Sabre Group, Inc. The
    Inventor: William C. Walton
  • Publication number: 20030059113
    Abstract: A system and method of automatically creating a NIMA certified line drawing from a National Imagery Transmission Format (NITF) image file. A grayscale (electro-optical) image and its associated metadata from a NITF file is input into the computer based system. Pre-screening operations are performed on the metadata prior to image processing to ensure that National Imagery and Mapping Agency (NIMA) requirements and criteria are met. Image processing algorithms then perform filtering, encoding, edge detection, and custom edge pattern classification procedures to create a declassified line drawing. The line drawing can then be saved in any number of standard commercial file formats.
    Type: Application
    Filed: September 26, 2002
    Publication date: March 27, 2003
    Inventors: William C. Walton, Cash J. Costello, Elissa M. Weidaw
  • Patent number: 5543153
    Abstract: A solid effervescent antacid formulation comprising as primary ingredients from about 35 to about 53 percent by weight of calcium carbonate, from about 0 to about 14 percent by weight of magnesium carbonate, from about 3.5 to about 7 percent by weight of a bicarbonate salt, from about 3.5 to about 7 percent by weight of malic acid and from about 21 to about 35 percent by weight of a bulking agent.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: August 6, 1996
    Assignee: Sterling Winthrop Inc.
    Inventor: William C. Walton
  • Patent number: 5330760
    Abstract: A solid effervescent antacid formulation comprising as primary ingredients from about 35 to about 53 percent by weight of calcium carbonate, from about 0 to about 14 percent by weight of magnesium carbonate, from about 3.5 to about 7 percent by weight of a bicarbonate salt, from about 3.5 to about 7 percent by weight of malic acid and from about 21 to about 35 percent by weight of a bulking agent.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: July 19, 1994
    Assignee: Sterling Winthrop Inc.
    Inventor: William C. Walton