Patents by Inventor Michail Nikolaevich RYCHAGOV

Michail Nikolaevich RYCHAGOV 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).

  • Magnetic resonance imaging device and method for generating magnetic resonance image
    Patent number: 11080847
    Abstract: Provided is a magnetic resonance imaging (MRI) apparatus including an acquisition unit configured to acquire an undersampled spectrum in a k-space and a reconstruction unit configured to generate a target image based on the undersampled spectrum, wherein the reconstruction unit includes: a first sub-reconstruction unit configured to perform initial reconstruction on data corresponding to unsampled positions in the k-space by using a Split Bregman algorithm or approximate sparse coding; a second sub-reconstruction unit configured to decompose the initially reconstructed spectrum in the k-space into multiple frequency bands to thereby generate a plurality of individual spectra and perform dictionary learning reconstruction on images respectively corresponding to the decomposed multiple frequency bands by alternating sparse approximation and reconstructing of measured frequencies; and an image generator configured to generate a target image by merging together the reconstructed images respectively corresponding
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 3, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Artem Sergeevich Migukin, Dmitry Alexandrovich Korobchenko, Mikhail Yurievich Sirotenko, Kirill Arthurovich Gavrilyuk, Praveen Gulaka, Sang-cheon Choi, Michail Nikolaevich Rychagov, Yang Lim Choi
  • METHOD FOR RESTORING MAGNETIC RESONANCE IMAGE AND MAGNETIC RESONANCE IMAGE PROCESSING APPARATUS
    Publication number: 20180247436
    Abstract: Provided are a magnetic resonance (MR) image processing apparatus and a method of reconstructing a MR image. The MR image processing apparatus includes a processor and a memory connected to the processor, wherein the processor is configured to acquire a partially sampled multi-coil k-space with respect to an object and obtain a reconstructed image of the object by reconstructing the partially sampled multi-coil k-space based on a pre-acquired first dictionary and a second dictionary acquired by using the first dictionary.
    Type: Application
    Filed: August 2, 2016
    Publication date: August 30, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dmitry Alexandrovich KOROBCHENKO, Artem Sergeevich MIGUKIN, Alexey Bronislavovich DANILEVICH, Anna Andreevna VARFOLOMEEVA, Sang-cheon CHOI, Mikhail Yurievich SIROTENKO, Michail Nikolaevich RYCHAGOV
  • MAGNETIC RESONANCE IMAGING DEVICE AND METHOD FOR GENERATING MAGNETIC RESONANCE IMAGE
    Publication number: 20170053402
    Abstract: Provided is a magnetic resonance imaging (MRI) apparatus including an acquisition unit configured to acquire an undersampled spectrum in a k-space and a reconstruction unit configured to generate a target image based on the undersampled spectrum, wherein the reconstruction unit includes: a first sub-reconstruction unit configured to perform initial reconstruction on data corresponding to unsampled positions in the k-space by using a Split Bregman algorithm or approximate sparse coding; a second sub-reconstruction unit configured to decompose the initially reconstructed spectrum in the k-space into multiple frequency bands to thereby generate a plurality of individual spectra and perform dictionary learning reconstruction on images respectively corresponding to the decomposed multiple frequency bands by alternating sparse approximation and reconstructing of measured frequencies; and an image generator configured to generate a target image by merging together the reconstructed images respectively corresponding
    Type: Application
    Filed: April 30, 2015
    Publication date: February 23, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Artem Sergeevich MIGUKIN, Dmitry Alexandrovich KOROBCHENKO, Mikhail Yurievich SIROTENKO, Kirill Arthurovich GAVRILYUK, Praveen GULAKA, Sang-cheon CHOI, Michail Nikolaevich RYCHAGOV, Yang Lim CHOI