Patents by Inventor Timo Kohlberger

Timo Kohlberger 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: 11657487
    Abstract: A method is described for generating a prediction of a disease classification error for a magnified, digital microscope slide image of a tissue sample. The image is composed of a multitude of patches or tiles of pixel image data. An out-of-focus degree per patch is computed using a machine learning out-of-focus classifier. Data representing expected disease classifier error statistics of a machine learning disease classifier for a plurality of out-of-focus degrees is retrieved. A mapping of the expected disease classifier error statistics to each of the patches of the digital microscope slide image based on the computed out-of-focus degree per patch is computed, thereby generating a disease classifier error prediction for each of the patches. The disease classifier error predictions thus generated are aggregated over all of the patches.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: May 23, 2023
    Assignee: Google LLC
    Inventors: Martin Stumpe, Timo Kohlberger
  • Publication number: 20220027678
    Abstract: A method is described for generating a prediction of a disease classification error for a magnified, digital microscope slide image of a tissue sample. The image is composed of a multitude of patches or tiles of pixel image data. An out-of-focus degree per patch is computed using a machine learning out-of-focus classifier. Data representing expected disease classifier error statistics of a machine learning disease classifier for a plurality of out-of-focus degrees is retrieved. A mapping of the expected disease classifier error statistics to each of the patches of the digital microscope slide image based on the computed out-of-focus degree per patch is computed, thereby generating a disease classifier error prediction for each of the patches. The disease classifier error predictions thus generated are aggregated over all of the patches.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Inventors: Martin Stumpe, Timo Kohlberger
  • Patent number: 11170897
    Abstract: A method, system and machine for assisting a pathologist in identifying the presence of tumor cells in lymph node tissue is disclosed. The digital image of lymph node tissue at a first magnification (e.g., 40×) is subdivided into a multitude of rectangular “patches.” A likelihood of malignancy score is then determined for each of the patches. The score is obtained by analyzing pixel data from the patch (e.g., pixel data centered on and including the patch) using a computer system programmed as an ensemble of deep neural network pattern recognizers, each operating on different magnification levels of the patch. A representation or “heatmap” of the slide is generated.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: November 9, 2021
    Assignee: Google LLC
    Inventors: Martin Christian Stumpe, Lily Peng, Yun Liu, Krishna K. Gadepalli, Timo Kohlberger
  • Patent number: 11164048
    Abstract: A method is described for generating a prediction of a disease classification error for a magnified, digital microscope slide image of a tissue sample. The image is composed of a multitude of patches or tiles of pixel image data. An out-of-focus degree per patch is computed using a machine learning out-of-focus classifier. Data representing expected disease classifier error statistics of a machine learning disease classifier for a plurality of out-of-focus degrees is retrieved. A mapping of the expected disease classifier error statistics to each of the patches of the digital microscope slide image based on the computed out-of-focus degree per patch is computed, thereby generating a disease classifier error prediction for each of the patches. The disease classifier error predictions thus generated are aggregated over all of the patches.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: November 2, 2021
    Assignee: Google LLC
    Inventors: Martin Stumpe, Timo Kohlberger
  • Publication number: 20200285908
    Abstract: A method is described for generating a prediction of a disease classification error for a magnified, digital microscope slide image of a tissue sample. The image is composed of a multitude of patches or tiles of pixel image data. An out-of-focus degree per patch is computed using a machine learning out-of-focus classifier. Data representing expected disease classifier error statistics of a machine learning disease classifier for a plurality of out-of-focus degrees is retrieved. A mapping of the expected disease classifier error statistics to each of the patches of the digital microscope slide image based on the computed out-of-focus degree per patch is computed, thereby generating a disease classifier error prediction for each of the patches. The disease classifier error predictions thus generated are aggregated over all of the patches.
    Type: Application
    Filed: May 26, 2020
    Publication date: September 10, 2020
    Inventors: Martin Stumpe, Timo Kohlberger
  • Patent number: 10706328
    Abstract: A method is described for generating a prediction of a disease classification error for a magnified, digital microscope slide image of a tissue sample. The image is composed of a multitude of patches or tiles of pixel image data. An out-of-focus degree per patch is computed using a machine learning out-of-focus classifier. Data representing expected disease classifier error statistics of a machine learning disease classifier for a plurality of out-of-focus degrees is retrieved. A mapping of the expected disease classifier error statistics to each of the patches of the digital microscope slide image based on the computed out-of-focus degree per patch is computed, thereby generating a disease classifier error prediction for each of the patches. The disease classifier error predictions thus generated are aggregated over all of the patches.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: July 7, 2020
    Assignee: Google LLC
    Inventors: Martin Stumpe, Timo Kohlberger
  • Publication number: 20200066407
    Abstract: A method, system and machine for assisting a pathologist in identifying the presence of tumor cells in lymph node tissue is disclosed. The digital image of lymph node tissue at a first magnification (e.g., 40×) is subdivided into a multitude of rectangular “patches.” A likelihood of malignancy score is then determined for each of the patches. The score is obtained by analyzing pixel data from the patch (e.g., pixel data centered on and including the patch) using a computer system programmed as an ensemble of deep neural network pattern recognizers, each operating on different magnification levels of the patch. A representation or “heatmap” of the slide is generated.
    Type: Application
    Filed: February 23, 2017
    Publication date: February 27, 2020
    Inventors: Martin Christian Stumpe, Lily Peng, Yun Liu, Krishna K. Gadepalli, Timo Kohlberger
  • Publication number: 20190340468
    Abstract: A method is described for generating a prediction of a disease classification error for a magnified, digital microscope slide image of a tissue sample. The image is composed of a multitude of patches or tiles of pixel image data. An out-of-focus degree per patch is computed using a machine learning out-of-focus classifier. Data representing expected disease classifier error statistics of a machine learning disease classifier for a plurality of out-of-focus degrees is retrieved. A mapping of the expected disease classifier error statistics to each of the patches of the digital microscope slide image based on the computed out-of-focus degree per patch is computed, thereby generating a disease classifier error prediction for each of the patches. The disease classifier error predictions thus generated are aggregated over all of the patches.
    Type: Application
    Filed: May 7, 2018
    Publication date: November 7, 2019
    Inventors: Martin Stumpe, Timo Kohlberger
  • Patent number: 9042620
    Abstract: A method and system for automatic multi-organ segmentation in a 3D image, such as a 3D computed tomography (CT) volume using learning-base segmentation and level set optimization is disclosed. A plurality of meshes are segmented in a 3D medical image, each mesh corresponding to one of a plurality of organs. A level set in initialized by converting each of the plurality of meshes to a respective signed distance map. The level set optimized by refining the signed distance map corresponding to each one of the plurality of organs to minimize an energy function.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: May 26, 2015
    Assignee: Siemens Corporation
    Inventors: Timo Kohlberger, Michal Sofka, Jens Wetzl, Jingdan Zhang, Shaohua Kevin Zhou, Neil Birkbeck, Jerome Declerck, Jens Kaftan
  • Publication number: 20120230572
    Abstract: A method and system for automatic multi-organ segmentation in a 3D image, such as a 3D computed tomography (CT) volume using learning-base segmentation and level set optimization is disclosed. A plurality of meshes are segmented in a 3D medical image, each mesh corresponding to one of a plurality of organs. A level set in initialized by converting each of the plurality of meshes to a respective signed distance map. The level set optimized by refining the signed distance map corresponding to each one of the plurality of organs to minimize an energy function.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 13, 2012
    Applicants: Siemens Molecular Imaging Limited, Siemens Corporation
    Inventors: Timo Kohlberger, Michal Sofka, Jens Wetzl, Jingdan Zhang, Shaohua Kevin Zhou, Neil Birkbeck, Jerome Declerck, Jens Kaftan