Patents by Inventor Anish TAMSE

Anish TAMSE 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: 11516483
    Abstract: Provided is a video decoding method including obtaining identification information of a first tile and identification information of a last tile from a bitstream, wherein the first and last tiles are included in a first slice, determining an index difference between the first tile and the last tile, based on a result of comparing the identification information of the first tile with the identification information of the last tile, determining the number of tiles included in the first slice, by using the index difference between the first tile and the last tile, and decoding a plurality of tiles included in the first slice according to an encoding order by using the number of tiles included in the first slice, the identification information of the first tile, and the identification information of the last tile.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: November 29, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woongil Choi, Gahyun Ryu, Minsoo Park, Minwoo Park, Seungsoo Jeong, Kwangpyo Choi, Kiho Choi, Narae Choi, Anish Tamse, Yinji Piao
  • Patent number: 11509906
    Abstract: Provided is an image decoding method including determining a current chroma block having a rectangular shape corresponding to a current luma block included in one of a plurality of luma blocks, determining a piece of motion information for the current chroma block and a chroma block adjacent to the current chroma block by using motion information of the current chroma block and the adjacent chroma block, and performing inter prediction on the current chroma block and the adjacent chroma block by using the piece of motion information for the current chroma block and the adjacent chroma block to generate prediction blocks of the current chroma block and the adjacent chroma block.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: November 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Anish Tamse, Woongil Choi, Minwoo Park, Seungsoo Jeong, Yinji Piao, Gahyun Ryu, Kiho Choi, Narae Choi, Minsoo Park
  • Patent number: 11509900
    Abstract: Provided are a method and apparatus, which, during video encoding and decoding processes, obtain chroma intra prediction mode information about a current chroma block, when the chroma intra prediction mode information indicates a direct mode (DM), determine a luma block including a luma sample corresponding to a chroma sample at a lower-right location with respect to a center of the current chroma block, determine a chroma intra prediction mode of the current chroma block based on an intra prediction mode of the determined luma block, and perform intra prediction on the current chroma block, based on the determined chroma intra prediction mode.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: November 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Minsoo Park, Gahyun Ryu, Minwoo Park, Seungsoo Jeong, Kiho Choi, Narae Choi, Woongil Choi, Anish Tamse, Yinji Piao
  • Patent number: 11509925
    Abstract: A video decoding method includes: obtaining two or more base motion vectors from an adjacent block of a current block; obtaining correction information for correcting the two or more base motion vectors; determining two or more affine motion vectors by correcting the two or more base motion vectors according to the correction information; obtaining a plurality of affine parameters of the current block according to the two or more affine motion vectors; and predicting the current block according to the plurality of affine parameters.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: November 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO.. LTD.
    Inventors: Seungsoo Jeong, Minwoo Park, Anish Tamse, Minsoo Park, Kiho Choi, Yinji Piao, Narae Choi, Woongil Choi
  • Patent number: 11496765
    Abstract: Provided are a video decoding method and apparatus for, in a video encoding and decoding procedure, when a merge candidate list of a current block is configured, determining whether the number of merge candidates included in the merge candidate list is greater than 1 and is smaller than a predetermined maximum merge candidate number, when the number of the merge candidates included in the merge candidate list is greater than 1 and is smaller than the predetermined maximum merge candidate number, determining an additional merge candidate by using a first merge candidate and a second merge candidate of the merge candidate list of the current block, configuring the merge candidate list by adding the determined additional merge candidate to the merge candidate list, and performing prediction on the current block, based on the merge candidate list.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 8, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Anish Tamse, Minwoo Park, Minsoo Park
  • Publication number: 20220353526
    Abstract: A video decoding method and device for determining whether a prediction mode of a current block is an affine mode; splitting, when the prediction mode of the current block is the affine mode, a luma block of the current block into a plurality of sub luma blocks having a square shape based on a predefined sub block size; determining a mean luma motion vector for four neighboring sub luma blocks among the plurality of sub luma blocks, by using a motion vector of an upper-left sub luma block of the four sub luma blocks and a motion vector of a lower-right sub luma block of the four sub luma blocks; determining the mean luma motion vector to be a motion vector of a current sub chroma block corresponding to the four sub luma blocks; and performing prediction on the current sub chroma block by using the determined motion vector, in a video encoding and decoding process are suggested.
    Type: Application
    Filed: July 8, 2022
    Publication date: November 3, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Anish TAMSE, Minwoo PARK, Gahyun RYU, Minsoo PARK, Seungsoo JEONG, Kiho CHOI, Narae CHOI, Woongil CHOI, Yinji PIAO
  • Patent number: 11470347
    Abstract: A video decoding method includes determining, based on an area of a current block, whether a multi-prediction combination mode for predicting the current block by combining prediction results obtained according to a plurality of prediction modes is applied to the current block, when the multi-prediction combination mode is applied to the current block, determining the plurality of prediction modes to be applied to the current block, generating a plurality of prediction blocks of the current block, according to the plurality of prediction modes, and determining a combined prediction block of the current block, by combining the plurality of prediction blocks according to respective weights.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: October 11, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seungsoo Jeong, Chanyul Kim, Minsoo Park, Minwoo Park, Kiho Choi, Narae Choi, Woongil Choi, Anish Tamse, Yinji Piao
  • Publication number: 20220312011
    Abstract: Provided is a video decoding method including: obtaining affine parameter group candidates of a current block based on whether adjacent blocks of the current block are decoded; determining an affine parameter group of the current block from among the affine parameter group candidates, according to affine parameter information of the current block; and reconstructing the current block, based on one or more affine parameters included in the affine parameter group.
    Type: Application
    Filed: June 13, 2022
    Publication date: September 29, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Anish TAMSE, Yin-ji PIAO, Jin-Young LEE
  • Publication number: 20220303551
    Abstract: Provided are a video encoding or decoding method and apparatus, which, during video encoding and decoding processes, determine whether an intra prediction mode of the current block is a DC mode, when the intra prediction mode of the current block is the DC mode, in a case where lengths of a height and a width of the current block are the same, determine an average of upper reference samples of the current block and left reference samples of the current block, as a DC value, and in a case where the lengths of the height and the width of the current block are different from each other, determine a weighted average value, which is determined by determining an average of the upper reference samples of the current block as an upper DC value, determine an average of the left reference samples of the current block as a left DC value, and combining the upper value and the left DC value with a predetermined weight, as a DC value, and perform intra prediction on the current block, based on the DC value.
    Type: Application
    Filed: June 8, 2022
    Publication date: September 22, 2022
    Applicant: SAMSUNG ELECTRONICS CO.,LTD.
    Inventors: Narae CHOI, Chanyul Kim, Minsoo Park, Minwoo Park, Seungsoo Jeong, Kiho Choi, Woongil Choi, Anish Tamse, Yinji Piao
  • Publication number: 20220295049
    Abstract: Provided are a video decoding method and apparatus and a video encoding method and apparatus which determine whether to use a Most Probable Mode (MPM) list, based on encoding information of a current block, obtain, from a bitstream, intra prediction mode index information indicating one of candidate intra prediction modes included in the MPM list, and determine an intra prediction mode of the current block by using the obtained intra prediction mode index information.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Narae Choi, Minwoo Park, Chanyul Kim, Minsoo Park, Yumi Sohn, Seungsoo Jeong, Kiho Choi, Woongil Choi, Anish Tamse, Yinji Piao
  • Publication number: 20220295051
    Abstract: Provided are a video decoding method and apparatus and a video encoding method and apparatus which determine whether to use a Most Probable Mode (MPM) list, based on encoding information of a current block, obtain, from a bitstream, intra prediction mode index information indicating one of candidate intra prediction modes included in the MPM list, and determine an intra prediction mode of the current block by using the obtained intra prediction mode index information.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Narae CHOI, Minwoo PARK, Chanyul KIM, Minsoo PARK, Yumi SOHN, Seungsoo JEONG, Kiho CHOI, Woongil CHOI, Anish TAMSE, Yinji PIAO
  • Publication number: 20220295052
    Abstract: Provided are a video decoding method and apparatus and a video encoding method and apparatus which determine whether to use a Most Probable Mode (MPM) list, based on encoding information of a current block, obtain, from a bitstream, intra prediction mode index information indicating one of candidate intra prediction modes included in the MPM list, and determine an intra prediction mode of the current block by using the obtained intra prediction mode index information.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Narae CHOI, Minwoo PARK, Chanyul KIM, Minsoo PARK, Yumi SOHN, Seungsoo JEONG, Kiho CHOI, Woongil CHOI, Anish TAMSE, Yinji PIAO
  • Publication number: 20220295050
    Abstract: Provided are a video decoding method and apparatus and a video encoding method and apparatus which determine whether to use a Most Probable Mode (MPM) list, based on encoding information of a current block, obtain, from a bitstream, intra prediction mode index information indicating one of candidate intra prediction modes included in the MPM list, and determine an intra prediction mode of the current block by using the obtained intra prediction mode index information.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Narae CHOI, Minwoo PARK, Chanyul KIM, Minsoo PARK, Yumi SOHN, Seungsoo JEONG, Kiho CHOI, Woongil CHOI, Anish TAMSE, Yinji PIAO
  • Patent number: 11431975
    Abstract: A video decoding method includes obtaining information indicating a first difference between a maximum size of a coding unit having a 1:4 ratio and a size of a largest coding unit, determining the maximum size of the coding unit of having the 1:4 ratio by using the size of the largest coding unit and the first difference, determining a minimum size of the coding unit having the 1:4 ratio based on a minimum size of a coding unit, determining whether a coding having the 1:4 ratio may be generated by splitting a first coding unit based on the maximum size and the minimum size of the coding unit having the 1:4 ratio, and determining a second coding unit including the coding unit having the 1:4 ratio, from the first coding unit, and decoding the second coding unit.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: August 30, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Minsoo Park, Minwoo Park, Kiho Choi, Yinji Piao, Seungsoo Jeong, Narae Choi, Woongil Choi, Anish Tamse
  • Patent number: 11425416
    Abstract: A video decoding method and device for determining whether a prediction mode of a current block is an affine mode; splitting, when the prediction mode of the current block is the affine mode, a luma block of the current block into a plurality of sub luma blocks having a square shape based on a predefined sub block size; determining a mean luma motion vector for four neighboring sub luma blocks among the plurality of sub luma blocks, by using a motion vector of an upper-left sub luma block of the four sub luma blocks and a motion vector of a lower-right sub luma block of the four sub luma blocks; determining the mean luma motion vector to be a motion vector of a current sub chroma block corresponding to the four sub luma blocks; and performing prediction on the current sub chroma block by using the determined motion vector, in a video encoding and decoding process are suggested.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: August 23, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Anish Tamse, Minwoo Park, Gahyun Ryu, Minsoo Park, Seungsoo Jeong, Kiho Choi, Narae Choi, Woongil Choi, Yinji Piao
  • Publication number: 20220248028
    Abstract: A video decoding method includes, determining a center motion vector of a current block by using a base motion vector of the current block based on affine model-based inter-prediction being performed in the current block, determining a reference range of an area to be referred to, with respect to the current block, based on a size of the current block, based on a reference area having a size of the reference range with respect to a point in a reference picture of the current block, the point being indicated by a central motion vector of the current block, deviating from or including a boundary of the reference picture, changing the reference area by parallelly translating the reference area into a current picture, and determining prediction samples of sub-blocks of the current block in the changed reference area from the reference picture.
    Type: Application
    Filed: April 25, 2022
    Publication date: August 4, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Minwoo PARK, Minsoo Park, Narae Choi, Seungsoo Jeong, Anish Tamse
  • Publication number: 20220239900
    Abstract: Provided are a video decoding method and device, in which, during video encoding and decoding processes: information about whether to apply an affine mode to a current block is received; when the information about whether to apply the affine mode indicates that the affine mode is to be applied, an affine parameter group is determined based on a history-based affine parameter group candidate list in which affine parameter groups of one or more blocks reconstructed in an affine mode before the current block are stored; and prediction on the current block is performed based on the affine parameter group.
    Type: Application
    Filed: September 19, 2019
    Publication date: July 28, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Anish TAMSE, Minwoo PARK, Kiho CHOI
  • Publication number: 20220239942
    Abstract: A method of decoding a motion vector includes: obtaining information indicating a motion vector resolution (MVR) of a current block from a bitstream, selecting one candidate block from among at least one candidate block, based on the MVR of the current block; and obtaining a motion vector of the current block corresponding to the MVR, by using a motion vector of the determined one candidate block as a prediction motion vector of the current block.
    Type: Application
    Filed: April 11, 2022
    Publication date: July 28, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-young Lee, Seung-soo Jeong, Woong-il Choi, Anish Tamse, Yin-ji Piao
  • Publication number: 20220232210
    Abstract: Provided are video encoding/decoding methods and apparatuses for determining an intra prediction mode of a current block, based on a width and height of the current block. When the current block has a square shape in which the width and height are equal, the intra prediction mode of the current block is determined from among first intra prediction mode candidates including a plurality of predetermined intra prediction directions, and when the current block has a non-square shape in which the width and height are not equal, the intra prediction mode of the current block is determined from among second intra prediction mode candidates configured based on the non-square shape.
    Type: Application
    Filed: April 4, 2022
    Publication date: July 21, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Narae CHOI, Minsoo Park, Minwoo Park, Seungsoo Jeong, Kiho Choi, Woongil Choi, Anish Tamse, Yinji Piao
  • Publication number: 20220217409
    Abstract: An image decoding method includes: obtaining, from a bitstream, first coding tool enable flag information of a first coding tool, indicating whether or not the first coding tool is applicable to an image sequence; obtaining, from the bitstream, second coding tool enable flag information of at least one second coding tool related to the first coding tool, based on the obtained first coding tool enable flag information; identifying at least one coding tool of the first coding tool and the second coding tool that is applicable to the image sequence included in the bitstream, based on at least one of the first coding tool enable flag information and the second coding tool enable flag information; and performing decoding on the image sequence based on the identified at least one coding tool.
    Type: Application
    Filed: March 8, 2022
    Publication date: July 7, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Minwoo Park, Minsoo Park, Kiho Choi, Yinji Piao, Anish Tamse