Patents by Inventor Dirk R. Padfield

Dirk R. Padfield 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: 9135694
    Abstract: A computer-implemented method of processing image data representing biological units in a tissue sample includes receiving a first image of the tissue sample containing signals from an immunofluorescent (IF) morphological marker, wherein the tissue sample is stained with the IF morphological marker, and receiving a second image of the same tissue sample containing signals from a fluorescent probe, wherein the tissue sample is hybridized in situ with the fluorescent probe. The method further includes classifying each biological unit in the tissue sample into one of at least two classes based on a mean intensity of the signals from the IF morphological marker in the first image, performing a fluorescence in situ hybridization (FISH) analysis of the tissue sample in the second image to obtain results therefrom, and filtering the results of the FISH analysis to produce a subset of the results pertaining to biological units classified in one class.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: September 15, 2015
    Assignee: General Electric Company
    Inventors: Antti Seppo, Yousef Al-Kofahi, Dirk R. Padfield
  • Publication number: 20140153811
    Abstract: A computer-implemented method of processing image data representing biological units in a tissue sample includes receiving a first image of the tissue sample containing signals from an immunofluorescent (IF) morphological marker, wherein the tissue sample is stained with the IF morphological marker, and receiving a second image of the same tissue sample containing signals from a fluorescent probe, wherein the tissue sample is hybridized in situ with the fluorescent probe. The method further includes classifying each biological unit in the tissue sample into one of at least two classes based on a mean intensity of the signals from the IF morphological marker in the first image, performing a fluorescence in situ hybridization (FISH) analysis of the tissue sample in the second image to obtain results therefrom, and filtering the results of the FISH analysis to produce a subset of the results pertaining to biological units classified in one class.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 5, 2014
    Applicant: General Electric Company
    Inventors: Antti Seppo, Yousef Al-Kofahi, Dirk R. Padfield
  • Patent number: 8588503
    Abstract: This invention, which provides a method for detecting a corruption in an image acquired from a biological sample, includes: providing at least one image of at least one cell; generating the image of the at least one cell over a period of time; determining if the at least one image of the at least one cell is corrupted; applying a wavelet transform, Fourier transform, or other frequency decomposing transform to the at least one image to decompose the at least one image into a plurality of sub-images, wherein the plurality of sub-images have a plurality of low frequency channels, a plurality of middle frequency channels and a plurality of high frequency channels; calculating a ratio based on an energy level of the plurality of low frequency channels and the plurality of middle frequency channels; and removing the at least one image of at least one cell if the at least one image is corrupted.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: November 19, 2013
    Assignee: GE Healthcare Bio-Sciences Corp.
    Inventors: Umesha Adiga, Ali Can, Xudong Li, Dirk R. Padfield, Jens Rittscher, Elizabeth P. Roquemore
  • Patent number: 8396269
    Abstract: Image quality is assessed for a digital image that is a composite of tiles or other image segments, especially focus accuracy for a microscopic pathology sample. An algorithm or combination of algorithms correlated to image quality is applied to pixel data at margins where adjacent image segments overlap and thus contain the same content in separately acquired images. The margins may be edges merged to join the image segments smoothly into a composite image, and typically occur on four sides of the image segments. The two versions of the same image content at each margin are processed by the quality algorithm, producing two assessment values. A sign and difference value are compared with other image segments, including by subsets selected for the orientation of the margins on sides on the image segments. The differences are mapped to displays. Selection criteria determine segments to be re-acquired.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: March 12, 2013
    Assignee: Digital Pathco LLC
    Inventors: David L. Henderson, Kevin B. Kenny, Dirk R. Padfield, Dashan Gao, Richard R. McKay, Vipul A. Baxi, Robert J. Filkins, Michael C. Montalto
  • Publication number: 20120127297
    Abstract: Digital image quality is assessed, especially focus accuracy for a microscopic pathology sample image, using quality assessment criteria that differ among zones distinguished by a structural classification process. An image or area is divided into sub-regions such as adjacent pixel blocks. At least one metric or algorithm is applied, such as a Brenner gradient correlated with focus quality or a Laplacian transform correlated with structural difference. Spatial zones are distinguished by associating blocks of pixels that produced comparable values from the metric. The quality results of an objective metric such as the Brenner gradient are graded separately using statistical or pass/fail grading criteria in each spatial zone, independent of other zones. Focus quality across the image is mapped for display and/or used to queue a re-imaging step.
    Type: Application
    Filed: November 24, 2010
    Publication date: May 24, 2012
    Inventors: Vipul A. Baxi, Richard R. McKay, Michael C. Montalto, Dirk R. Padfield, Dashan Gao
  • Publication number: 20110249910
    Abstract: Image quality is assessed for a digital image that is a composite of tiles or other image segments, especially focus accuracy for a microscopic pathology sample. An algorithm or combination of algorithms correlated to image quality is applied to pixel data at margins where adjacent image segments overlap and thus contain the same content in separately acquired images. The margins may be edges merged to join the image segments smoothly into a composite image, and typically occur on four sides of the image segments. The two versions of the same image content at each margin are processed by the quality algorithm, producing two assessment values. A sign and difference value are compared with other image segments, including by subsets selected for the orientation of the margins on sides on the image segments. The differences are mapped to displays. Selection criteria determine segments to be re-acquired.
    Type: Application
    Filed: April 8, 2010
    Publication date: October 13, 2011
    Applicants: General Electric Company, Omnyx LLC
    Inventors: David L. Henderson, Kevin B. Kenny, Dirk R. Padfield, Dashan Gao, Richard R. McKay, Vipul A. Baxi, Robert J. Filkins, Michael C. Montalto
  • Publication number: 20110069905
    Abstract: This invention, which provides a method for detecting a corruption in an image acquired from a biological sample, includes: providing at least one image of at least one cell; generating the image of the at least one cell over a period of time; determining if the at least one image of the at least one cell is corrupted; applying a wavelet transform, Fourier transform, or other frequency decomposing transform to the at least one image to decompose the at least one image into a plurality of sub-images, wherein the plurality of sub-images have a plurality of low frequency channels, a plurality of middle frequency channels and a plurality of high frequency channels; calculating a ratio based on an energy level of the plurality of low frequency channels and the plurality of middle frequency channels; and removing the at least one image of at least one cell if the at least one image is corrupted.
    Type: Application
    Filed: May 29, 2009
    Publication date: March 24, 2011
    Applicant: GE Healthcare Bio-Sciences Corp
    Inventors: Umesha Adiga, Ali Can, Xudong Li, Dirk r. Padfield, Jens Rittscher, Elizabeth P. Roquemore