Patents Assigned to VRVis Zentrum fur Virtual Reality und Visualisierung Forschungs-GmbH
  • Publication number: 20230377323
    Abstract: A method of augmenting the number of labeled images for training a neural network comprising the steps of—Starting from a dataset of labeled images with corresponding segmentation masks and a dataset of unlabeled images, gathering for a given image i in a data set of labeled images a number of images with similar metadata in said dataset of unlabeled images so as to form data sub-set Sim i,—Training a multiclass segmentation neural network on said labeled images thereby generating segmentation masks for the images in subset Sim i,—On the basis of these segmentation masks judging similarity between images of Sim i and image i and finding the most similar image(s) in Sim i by computing and comparing histograms of segmentation masks of image i and images in Sim i—Transferring the histogram of the most similar images in Sim i to given image i.
    Type: Application
    Filed: October 1, 2021
    Publication date: November 23, 2023
    Applicants: AGFA NV, VRVIS Zentrum für Virtual Reality und Visualisierung Forschungs-GmbH
    Inventors: Astrid Berg, Eva Vandersmissen, Katja Buehler
  • Patent number: 11727573
    Abstract: Method of segmenting anatomical structures such as organs in 3D scans in an architecture that combines U-net, time-distributed convolutions and bidirectional convolutional LSTM.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 15, 2023
    Assignees: Agfa Healthcare NV, VRVis Zentrum fur Virtual Reality und Visualisierung Forschungs-GmbH
    Inventors: Alexey Novikov, David Major, Maria Wimmer, Dimitrios Lenis, Katja Buehler
  • Publication number: 20230177683
    Abstract: A neural network, trained for the task of deriving the attribution of image regions that significantly influence classification in a tool for pathology classification, comprising (i) a contracting branch, (ii) an attenuation module, (iii) an interconnected upsampling branch, and (iv) a final mapping module.
    Type: Application
    Filed: June 2, 2021
    Publication date: June 8, 2023
    Applicants: AGFA Healthcare NV, VRVIS Zentrum für Virtual Reality und Visualisierung Forschungs-GmbH
    Inventors: Dimitrios Lenis, David Major, Maria Wimmer, Gert Sluiter, Astrid Berg, Katja Buehler
  • Publication number: 20230144724
    Abstract: A method for finding image regions that significantly influence classification in a tool for pathology classification in a medical image wherein image regions that influence classification are inpainted, by replacing the pixels in these regions by representations of heathy tissue, resulting in an image with a healthy classification-score in the classification tool.
    Type: Application
    Filed: March 30, 2021
    Publication date: May 11, 2023
    Applicants: AGFA Healthcare NV, VRVIS Zentrum für Virtual Reality und Visualisierung Forschungs-GmbH
    Inventors: David Major, Dimitrios Lenis, Maria Wimmer, Gert Sluiter, Astrid Berg, Katja Buehler
  • Patent number: 11210792
    Abstract: A method for training an artificial neural network on an additional untrained segmentation task prevents the loss of previously acquired segmentation skills on originally trained segmentation tasks.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: December 28, 2021
    Assignees: Agfa HealthCare NV, VRVis Zentrum für Virtual Reality und Visualisierung Forschungs-GmbH
    Inventors: Alexey Novikov, Katja Buehler, David Major, Maria Wimmer