University of Notre Dame
Browse
8,885,975 OCR.pdf (949.22 kB)

Method and apparatus for iterative reconstruction

Download (949.22 kB)
standard
posted on 2017-07-31, 00:00 authored by Bruno Kristiaan Bernard De Man, Charles A. Bouman, Debashish Pal, Jean-Baptiste Thibault, Jeffrey Allen Fessler, Ken D SauerKen D Sauer, Lin Fu, Sathish Ramani, Somesh Srivastava, Zhou Yu
A method is provided for reconstructing an image of an object that includes image elements. The method includes accessing measurement data associated with the image elements, introducing an auxiliary variable to transform an original problem of reconstructing the image to a constrained optimization problem, and solving the constrained optimization problem using a method of multipliers to create a sequence of sub-problems and solve the sequence of sub-problems. Solving the sequence of sub-problems includes reconstructing the image by optimizing a first objective function. The first objective function is optimized by iteratively solving a nested sequence of approximate optimization problems. An inner loop iteratively optimizes a second objective function approximating the first objective function. An outer loop utilizes the solution of the second objective function to optimize the first objective function.

History

Patent Number

US 8885975 B2

Other Application

13/531,082

Inventor

Zhou Yu Bruno Kristiaan Bernard De Man Jean-Baptiste Thibault Debashish Pal Lin Fu Charles A. Bouman Ken D. Sauer Sathish Ramani Jeffrey Allen Fessler Somesh Srivastava

Inventor from Local Institution

Ken D. Sauer

Assignee

General Electric Company (Schenectady, NY) Regents of the University of Michigan (Ann Arbor, MI) Purdue Research Foundation (West Lafayette, IN) University of Notre Dame du Lac

Date Modified

2017-08-01

Language

  • English

Claims

22

Prior Publication Number

US 20130343672 A1

Publisher

United States Patent and Trademark Office

Cooperative Patent Classification Codes

G06T 11/003 (20130101); G06T 11/006 (20130101); G06T 2211/424 (20130101)

Contributor

Ken D. Sauer

International Patent Classification Codes

G06K 9/36 (20060101); G06K 9/00 (20060101)

US Patent Classification Codes

382/276; 382/131

Usage metrics

    Patents

    Categories

    No categories selected

    Keywords

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC