Patents by Inventor Mahdi Hajiaghayi

Mahdi Hajiaghayi 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).

  • Cost-efficient repair for storage systems using progressive engagement
    Patent number: 10187088
    Abstract: An apparatus or method for minimizing the total accessing cost, such as minimizing repair bandwidth, delay or the number of hops including the steps of minimizing the number of nodes to be engaged for the recovery process using a polynomial-time solution that determines the optimal number of participating nodes and the optimal set of nodes to be engaged for recovering lost data, where in a distributed database storage system, for example a dynamic system, where the accessing cost or even the number of available nodes are subject to change results in different values for the optimal number of participating nodes. An MDS code is included which can be reused when the number of participating nodes varies without having to change the entire code structure and the content of the nodes.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: January 22, 2019
    Assignee: The Regents of the University of California
    Inventors: Hamid Jafarkhani, Mahdi Hajiaghayi
  • Automated 3D reconstruction of the cardiac chambers from MRI or ultrasound
    Patent number: 9875581
    Abstract: The disclosure relates to a method of automatically producing a three-dimensional (3D) segmentation of a heart chamber, the method comprising: obtaining data sets from cardiac magnetic resonance imaging (MRI) or ultrasound, generating a 3D segmentation of the heart chamber from the data sets using an active contour method, modifying the 3D segmentation by adding a plurality of intra-chamber structures; and identifying an enclosing myocardium using the 3D segmentation generated by the method.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: January 23, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Hamid Jafarkhani, Mahdi Hajiaghayi, Elliott Groves, Arash Kheradvar
  • Automated 3D Reconstruction of the Cardiac Chambers from MRI and Ultrasound
    Publication number: 20160140751
    Abstract: The disclosure relates to a method of automatically producing a three-dimensional (3D) segmentation of a heart chamber, the method comprising: obtaining data sets from cardiac magnetic resonance imaging (MRI) or ultrasound, generating a 3D segmentation of the heart chamber from the data sets using an active contour method, modifying the 3D segmentation by adding a plurality of intra-chamber structures; and identifying an enclosing myocardium using the 3D segmentation generated by the method.
    Type: Application
    Filed: November 2, 2015
    Publication date: May 19, 2016
    Inventors: Hamid Jafarkhani, Mahdi Hajiaghayi, Elliott Groves, Arash Kheradvar
  • [01] COST-EFFICIENT REPAIR FOR STORAGE SYSTEMS USING PROGRESSIVE ENGAGEMENT
    Publication number: 20150303949
    Abstract: An apparatus or method for minimizing the total accessing cost, such as minimizing repair bandwidth, delay or the number of hops including the steps of minimizing the number of nodes to be engaged for the recovery process using a polynomial-time solution that determines the optimal number of participating nodes and the optimal set of nodes to be engaged for recovering lost data, where in a distributed database storage system, for example a dynamic system, where the accessing cost or even the number of available nodes are subject to change results in different values for the optimal number of participating nodes. An MDS code is included which can be reused when the number of participating nodes varies without having to change the entire code structure and the content of the nodes.
    Type: Application
    Filed: April 17, 2015
    Publication date: October 22, 2015
    Inventors: Hamid Jafarkhani, Mahdi Hajiaghayi