Patents Examined by Shavesh M Mehta
  • Patent number: 7336809
    Abstract: A method and system of volume segmentation is disclosed. To address throughput speed and accuracy requirements, the segmentation is divided into two stages: presegmentation and detailed segmentation. In presegmentation, a digital image volume is processed to identify anatomical structures from image backgrounds in a gross manner possibly at reduced image resolution. Detailed segmentation then involves refining and segmenting further the fine details within the anatomical structures identified by presegmentation. One result of the overall volume segmentation algorithm is a volume in which segmented regions of interest, such as nodules, are identified.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: February 26, 2008
    Assignee: R2 Technology, Inc.
    Inventors: Xiaolan Zeng, Wei Zhang, Alexander C. Schneider
  • Patent number: 7236643
    Abstract: In order to render information contained in images more detectable in the presence of noise, the present invention discloses a system and method to binarize the images in the presence of noise. The method of this invention comprises the steps of applying a dynamic range reducing filter to the digitized image values, obtaining a range reduced image; applying an edge detecting filter to the range reduced image, obtaining a filtered image; and then, adaptively binarizing the digitized image utilizing the corresponding filtered image to obtain an adaptive threshold.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: June 26, 2007
    Assignee: Lockheed Martin Corporation
    Inventors: Lawrence E. Albertelli, David L. Ii, Nina Kung
  • Patent number: 7218766
    Abstract: There is provided a method of analyzing a plurality of views of an object, the object including an edge portion partially extending from a surface of the object into an internal volume of the object, comprising the step of analyzing each acquired view. The step of analyzing each acquired view includes analysis of the edge portion. Preferably, the object comprises breast tissue.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: May 15, 2007
    Assignee: General Electric Company
    Inventors: Jeffrey Wayne Eberhard, Abdalmajeid Musa Alyassin, Ajay Kapur