Patents by Inventor Asma OUJI

Asma OUJI 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).

  • Method of segmenting a 3D object in a medical radiation image
    Patent number: 10902603
    Abstract: On the basis of user input a set of contour points of a 3D object is detected in a number of 2D slice images representing the 3D object. Next a 2D object is segmented in each of the slice images by the set of contour points so as to obtain segmentation masks. Finally, by interpolation between computed segmentation masks, the 3D object is segmented.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: January 26, 2021
    Assignee: AGFA HEALTHCARE NV
    Inventor: Asma Ouji
  • METHOD OF SEGMENTING A 3D OBJECT IN A MEDICAL RADIATION IMAGE
    Publication number: 20200286240
    Abstract: Based on user input, a set of contour points of a 3D object is defined in a number of 2D slice images representing the 3D object. A 2D distance map is computed in each plane where a contour is defined. Next, a 3D distance map is created via a linear interpolation of the 2D distance maps. Each voxel is classified as in/out the segmentation mask depending on its corresponding distance map value.
    Type: Application
    Filed: November 9, 2018
    Publication date: September 10, 2020
    Inventors: Asma OUJI, Yoni DE WITTE
  • METHOD OF SEGMENTING A 3D OBJECT IN A MEDICAL RADIATION IMAGE
    Publication number: 20200074636
    Abstract: On the basis of user input a set of contour points of a 3D object is detected in a number of 2D slice images representing the 3D object. Next a 2D object is segmented in each of the slice images by the set of contour points so as to obtain segmentation masks. Finally, by interpolation between computed segmentation masks, the 3D object is segmented.
    Type: Application
    Filed: December 1, 2017
    Publication date: March 5, 2020
    Inventor: Asma Ouji
  • Method for determining the short axis in a lesion region in a three dimensional medical image
    Patent number: 10127683
    Abstract: A short axis in a 3 dimensional image of a lesion is determined starting from voxels defining the long axis and voxels in the plane of the long axis. Voxels within the plane of the long axis are projected perpendicularly onto the long axis and receive an identifier indicative of the region on the long axis onto which they are projected. Distances between points (projected sub-voxels) in pairs of points within the same range and within adjacent ranges are evaluated in order to determine the longest distance.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: November 13, 2018
    Assignee: AGFA HEALTHCARE NV
    Inventors: Asma Ouji, Yoni De Witte
  • Vessel segmentation method
    Patent number: 9984458
    Abstract: Vascular structures are segmented by a locally adaptive method based on iterative region growing and morphological operations.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: May 29, 2018
    Assignee: AGFA HEALTHCARE NV
    Inventors: Asma Ouji, Yoni De Witte
  • METHOD FOR DETERMINING THE SHORT AXIS IN A LESION REGION IN A THREE DIMENSIONAL MEDICAL IMAGE
    Publication number: 20180005403
    Abstract: A short axis in a 3 dimensional image of a lesion is determined starting from voxels defining the long axis and voxels in the plane of the long axis. Voxels within the plane of the long axis are projected perpendicularly onto the long axis and receive an identifier indicative of the region on the long axis onto which they are projected. Distances between points (projected sub-voxels) in pairs of points within the same range and within adjacent ranges are evaluated in order to determine the longest distance.
    Type: Application
    Filed: December 16, 2015
    Publication date: January 4, 2018
    Inventors: Asma OUJI, Yoni DE WITTE
  • Method for removing a support of an object from volume data
    Patent number: 9786049
    Abstract: Volume data representing a radiation image of an object are subjected to a coarse filtering process to obtain a first classification including support type and non-support type components. An iteration of low threshold filtering steps and successive extraction and classification of connected components is performed and used to rectify the result of the coarse filtering process. A further filtering is based on the location of the connected components in the volume.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: October 10, 2017
    Assignee: AGFA HEALTHCARE NV
    Inventor: Asma Ouji
  • Automated aorta detection in a CTA volume
    Patent number: 9691174
    Abstract: A method for detecting main body vessels (e.g., the aorta) in a medical volume includes refining the result of a bone removal algorithm.
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: June 27, 2017
    Assignee: AGFA HEALTHCARE NV
    Inventors: Asma Ouji, Koen Vergote
  • VESSEL SEGMENTATION METHOD
    Publication number: 20160260212
    Abstract: Vascular structures are segmented by a locally adaptive method based on iterative region growing and morphological operations.
    Type: Application
    Filed: October 28, 2014
    Publication date: September 8, 2016
    Inventors: Asma OUJI, Yoni DE WITTE
  • METHOD FOR REMOVING A SUPPORT OF AN OBJECT FROM VOLUME DATA
    Publication number: 20160247278
    Abstract: Volume data representing a radiation image of an object are subjected to a coarse filtering process to obtain a first classification including support type and non-support type components. An iteration of low threshold filtering steps and successive extraction and classification of connected components is performed and used to rectify the result of the coarse filtering process. A further filtering is based on the location of the connected components in the volume.
    Type: Application
    Filed: November 4, 2014
    Publication date: August 25, 2016
    Inventor: Asma OUJI
  • AUTOMATED AORTA DETECTION IN A CTA VOLUME
    Publication number: 20160093096
    Abstract: A method for detecting main body vessels (e.g., the aorta) in a medical volume includes refining the result of a bone removal algorithm.
    Type: Application
    Filed: May 26, 2014
    Publication date: March 31, 2016
    Inventors: Asma OUJI, Koen VERGOTE