公开(公告)号：US11842275B2

公开(公告)日：2023-12-12

申请号：US17298718

申请日：2019-12-02

Applicant: AGFA NV

Inventor： Eva Vandersmissen

IPC: G06T7/00 ,  G06N3/08 ,  G06T7/12 ,  G06T7/143 ,  G06V10/94 ,  G06V10/25 ,  G06V10/75 ,  G06V10/764 ,  G06V10/776 ,  G06V10/80 ,  G06V10/82 ,  G06V10/48 ,  G06V10/26 ,  G06V10/46

CPC classification number: G06N3/08 ,  G06T7/12 ,  G06T7/143 ,  G06V10/25 ,  G06V10/26 ,  G06V10/46 ,  G06V10/48 ,  G06V10/757 ,  G06V10/764 ,  G06V10/776 ,  G06V10/809 ,  G06V10/82 ,  G06V10/95 ,  G06T2207/10116 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06V2201/033

Abstract: This invention is related to a method to improve the performance of a deep neural network (10) for the identification of a segmentation target (111) in a medical image (12, 110), comprising the steps of performing n training steps on said deep neural network (10) for the identification of said region of interest on two different representations (13, 14) of the same segmentation target (111), said representations (13,14) being definitions of the same segmentation target (111).

公开(公告)号：US20230377323A1

公开(公告)日：2023-11-23

申请号：US18247559

申请日：2021-10-01

Applicant: AGFA NV ,  VRVIS Zentrum für Virtual Reality und Visualisierung Forschungs-GmbH

Inventor： Astrid Berg ,  Eva Vandersmissen ,  Katja Buehler

IPC: G06V10/82 ,  G06V10/774 ,  G06V10/74 ,  G06V10/75

CPC classification number: G06V10/82 ,  G06V10/7753 ,  G06V10/761 ,  G06V10/758

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.