Patents by Inventor Lukasz LITWIC

Lukasz LITWIC 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: 12219133
    Abstract: Methods, decoders, and programs are provided. All blocks of an image that has been encoded are decoded. At least one sample of at least one block of the image is filtered by, for each block being filtered: for each sample being filtered: selecting a plurality of neighboring samples. For at least one neighboring sample, a difference is calculated between the neighboring sample and the sample. A modifier value is obtained. A modifier sum is derived based on a sum of the modifier values for the neighboring samples. A correction value is determined based on a conditional addition of at least one shifted version of the modifier sum, each shift having a same number of shift steps in each correction value determination. A filtered sample is derived based on the sample and correction value. The filtered sample is stored. The block and filtered sample is output towards a decoder output.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: February 4, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jacob Ström, Per Wennersten, Jack Enhorn, Ruoyang Yu, Lukasz Litwic
  • Publication number: 20240414331
    Abstract: Methods, decoders, and programs are provided. All blocks of an image that has been encoded are decoded. At least one sample of at least one block of the image is filtered by, for each block being filtered: for each sample being filtered: selecting a plurality of neighboring samples. For at least one neighboring sample, a difference is calculated between the neighboring sample and the sample. A modifier value is obtained. A modifier sum is derived based on a sum of the modifier values for the neighboring samples. A correction value is determined based on a conditional addition of at least one shifted version of the modifier sum, each shift having a same number of shift steps in each correction value determination. A filtered sample is derived based on the sample and correction value. The filtered sample is stored. The block and filtered sample is output towards a decoder output.
    Type: Application
    Filed: March 10, 2020
    Publication date: December 12, 2024
    Inventors: Jacob Ström, Per Wennersten, Jack Enhorn, Ruoyang Yu, Lukasz Litwic
  • Publication number: 20210281880
    Abstract: A method by a transmitter for encoding a video image includes combining a geometry image and a texture image associated with a single point cloud into a video frame. The video frame including the geometry image and the texture image are encoded into a video bitstream, and the video bitstream is transmitted to a receiver.
    Type: Application
    Filed: July 8, 2019
    Publication date: September 9, 2021
    Inventor: Lukasz Litwic
  • Publication number: 20210266575
    Abstract: A method by a transmitter for encoding a video image includes combining depth information and an occupancy map into a container in a video sequence. The video sequence including the depth information and the occupancy map is encoded. The encoded video sequence is transmitted to a receiver.
    Type: Application
    Filed: July 12, 2019
    Publication date: August 26, 2021
    Inventor: Lukasz LITWIC
  • Publication number: 20150326874
    Abstract: An apparatus and method are provided for coding a video signal, wherein each picture frame of the video signal comprises one or more corresponding reference frames, each reference frame R comprising a first field (for example a top field or a bottom field) and a second field (for example a bottom field or top field). A current frame to be coded is received, and a first field or a second field of a reference frame selected for coding a first field of the current frame. The selecting is performed based on the video content of the reference frame. The first field of the current frame is coded using the selected field of the reference frame.
    Type: Application
    Filed: June 21, 2012
    Publication date: November 12, 2015
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: Lukasz LITWIC