×

Automatic system calibration method of X-ray CT

  • US 10,643,354 B2
  • Filed: 03/21/2016
  • Issued: 05/05/2020
  • Est. Priority Date: 03/20/2015
  • Status: Active Grant
First Claim
Patent Images

1. A method of reconstructing a computed tomography (CT) image, the method comprising:

  • i) obtaining an initial CT image;

    ii) performing a reconstruction algorithm on the initial CT image to obtain a reconstructed image of the initial CT image;

    iii) using the reconstructed image to adjust one or more parameters associated with the image comprising using a Locally Linear Embedding (LLE) method on each of the one or more parameters;

    iv) using the adjusted one or more parameters to perform the reconstruction algorithm on the reconstructed image to obtain an updated reconstructed image; and

    v) repeating steps iii)-iv), using the most-recently updated reconstructed image in each repeated step iii), and updating the same one or more parameters in each repeated step iii) until a threshold value of a predetermined characteristic is met;

    wherein the LLE method comprises;

    with the K nearest vectors, representing the original data vector linearly with its neighboring vectors;

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×