Patents by Inventor Elena Alshin

Elena Alshin 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).

  • Patent number: 12003761
    Abstract: A video decoding and video encoding method of performing inter prediction in a bi-directional motion prediction mode, in which a prediction pixel value of a current block may be generated by not only using a pixel value of a first reference block of a first reference picture and a pixel value of a second reference block of a second reference picture, but also using a first gradient value of the first reference block and a second gradient value of the second reference block, in a bi-directional motion prediction mode. Accordingly, encoding and decoding efficiency may be increased since a prediction block similar to an original block may be generated.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: June 4, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Alexander Alshin, Elena Alshina
  • Publication number: 20240129492
    Abstract: Provided is a video decoding method including: obtaining a first motion vector indicating a first reference block of a current block in a first reference picture and a second motion vector indicating a second reference block of the current block in a second reference picture; obtaining a parameter related to pixel group unit motion compensation of the current block, based on at least one of information of the parameter related to the pixel group unit motion compensation and a parameter related to an image including the current picture; generating a prediction block by performing, with respect to the current block, block unit motion compensation based on the first motion vector and the second motion vector and performing the pixel group unit motion compensation based on the parameter related to the pixel group unit motion compensation; and reconstructing the current block. Here, a pixel group may include at least one pixel.
    Type: Application
    Filed: November 20, 2023
    Publication date: April 18, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Elena ALSHINA, Alexander ALSHIN
  • Publication number: 20130182780
    Abstract: Provided are a method of interpolating an image by determining interpolation filter coefficients, and an apparatus for performing the same. The method includes: differently selecting an interpolation filter, from among interpolation filters for generating at least one sub-pel-unit pixel value located between integer-pel-unit pixels, based on a sub-pel-unit interpolation location and a smoothness; and generating the at least one sub-pel-unit pixel value by interpolating, using the selected interpolation filter, pixel values of the integer-pel-unit pixels.
    Type: Application
    Filed: September 30, 2011
    Publication date: July 18, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Alexander Alshin, Elena Alshin, Jianle Chen, Woo-Jin Han, Nikolay Shlyakhov, Yoon-Mi Hong