Patents by Inventor Tammy Lee

Tammy Lee 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).

  • METHOD AND APPARATUS FOR VIDEO ENCODING FOR EACH SPATIAL SUB-AREA, AND METHOD AND APPARATUS FOR VIDEO DECODING FOR EACH SPATIAL SUB-AREA
    Publication number: 20150334404
    Abstract: Provided are a video encoding method and a video decoding method according to spatial subdivisions based on splitting a picture into a first tile and a second tile, and splitting a current tile among the first tile and the second tile into at least one slice segment, encoding the first tile and the second tile, independently from each other, and encoding maximum coding units of a current slice segment among the at least one slice segment included in the current tile, with respect to the at least one slice segment included in the current tile.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Byeong-doo CHOI
  • METHOD AND APPARATUS FOR VIDEO ENCODING FOR EACH SPATIAL SUB-AREA, AND METHOD AND APPARATUS FOR VIDEO DECODING FOR EACH SPATIAL SUB-AREA
    Publication number: 20150334409
    Abstract: Provided are a video encoding method and a video decoding method according to spatial subdivisions based on splitting a picture into a first tile and a second tile, and splitting a current tile among the first tile and the second tile into at least one slice segment, encoding the first tile and the second tile, independently from each other, and encoding maximum coding units of a current slice segment among the at least one slice segment included in the current tile, with respect to the at least one slice segment included in the current tile.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Byeong-doo CHOI
  • METHOD AND APPARATUS FOR VIDEO ENCODING FOR EACH SPATIAL SUB-AREA, AND METHOD AND APPARATUS FOR VIDEO DECODING FOR EACH SPATIAL SUB-AREA
    Publication number: 20150334408
    Abstract: Provided are a video encoding method and a video decoding method according to spatial subdivisions based on splitting a picture into a first tile and a second tile, and splitting a current tile among the first tile and the second tile into at least one slice segment, encoding the first tile and the second tile, independently from each other, and encoding maximum coding units of a current slice segment among the at least one slice segment included in the current tile, with respect to the at least one slice segment included in the current tile.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Byeong-doo CHOI
  • METHOD AND APPARATUS FOR VIDEO ENCODING FOR EACH SPATIAL SUB-AREA, AND METHOD AND APPARATUS FOR VIDEO DECODING FOR EACH SPATIAL SUB-AREA
    Publication number: 20150334410
    Abstract: Provided are a video encoding method and a video decoding method according to spatial subdivisions based on splitting a picture into a first tile and a second tile, and splitting a current tile among the first tile and the second tile into at least one slice segment, encoding the first tile and the second tile, independently from each other, and encoding maximum coding units of a current slice segment among the at least one slice segment included in the current tile, with respect to the at least one slice segment included in the current tile.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Byeong-doo CHOI
  • METHOD AND APPARATUS FOR ESTIMATING MOTION VECTOR USING PLURALITY OF MOTION VECTOR PREDICTORS, ENCODER, DECODER, AND DECODING METHOD
    Publication number: 20150319454
    Abstract: Provided are a method and apparatus for estimating a motion vector using a plurality of motion vector predictors, an encoder, a decoder, and a decoding method. The method includes calculating spatial similarities between the current block and the plurality of neighboring partitions around the current block, selecting at least one of the neighboring partitions based on the calculated spatial similarities, and estimating a motion vector of the selected partition as the motion vector of the current block.
    Type: Application
    Filed: July 14, 2015
    Publication date: November 5, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Woo-jin HAN
  • METHOD AND APPARATUS FOR ESTIMATING MOTION VECTOR USING PLURALITY OF MOTION VECTOR PREDICTORS, ENCODER, DECODER, AND DECODING METHOD
    Publication number: 20150319455
    Abstract: Provided are a method and apparatus for estimating a motion vector using a plurality of motion vector predictors, an encoder, a decoder, and a decoding method. The method includes calculating spatial similarities between the current block and the plurality of neighboring partitions around the current block, selecting at least one of the neighboring partitions based on the calculated spatial similarities, and estimating a motion vector of the selected partition as the motion vector of the current block.
    Type: Application
    Filed: July 14, 2015
    Publication date: November 5, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Woo-jin HAN
  • METHOD AND APPARATUS FOR IMAGE ENCODING AND DECODING USING INTRA PREDICTION
    Publication number: 20150288980
    Abstract: Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values.
    Type: Application
    Filed: May 28, 2015
    Publication date: October 8, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Jianle CHEN
  • METHOD AND APPARATUS FOR ENCODING VIDEO AND METHOD AND APPARTAUS FOR DECODING VIDEO FOR RANDOM ACCESS
    Publication number: 20150288975
    Abstract: A high level syntax of picture for random access is provided. A video decoding method obtains type information of a random access point (RAP) picture from a header of a network adaptive layer (NAL) unit. The type information of the RAP picture may be classified based on whether a leading picture exists and whether a random access decodable leading (RADL) picture exists. It is determined whether the leading picture is decodable based on the type information of the RAP picture and the RAP picture and a decodable leading picture are decoded.
    Type: Application
    Filed: September 30, 2013
    Publication date: October 8, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byeong-doo Choi, Jeong-hoon Park, Tammy Lee
  • METHOD AND APPARATUS FOR IMAGE ENCODING AND DECODING USING INTRA PREDICTION
    Publication number: 20150264380
    Abstract: Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values.
    Type: Application
    Filed: May 28, 2015
    Publication date: September 17, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Jianle CHEN
  • METHOD AND APPARATUS FOR IMAGE ENCODING AND DECODING USING INTRA PREDICTION
    Publication number: 20150264379
    Abstract: Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values.
    Type: Application
    Filed: May 28, 2015
    Publication date: September 17, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Jianle CHEN
  • METHOD AND APPARATUS FOR IMAGE ENCODING AND DECODING USING INTRA PREDICTION
    Publication number: 20150264381
    Abstract: Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values.
    Type: Application
    Filed: May 28, 2015
    Publication date: September 17, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Jianle CHEN
  • METHOD AND APPARATUS FOR IMAGE ENCODING AND DECODING USING INTRA PREDICTION
    Publication number: 20150264382
    Abstract: Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values.
    Type: Application
    Filed: May 28, 2015
    Publication date: September 17, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Jianle CHEN
  • Method and apparatus for encoding video using variable partitions for predictive encoding, and method and apparatus for decoding video using variable partitions for predictive encoding
    Patent number: 9137533
    Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: September 15, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Hyun Lee, Tammy Lee, Jianle Chen, Dae-Sung Cho, Woo-jin Han, Il-koo Kim
  • Method and apparatus for encoding motion information, and method and apparatus for decoding same
    Patent number: 9137543
    Abstract: A method and apparatus for encoding and decoding motion information. The encoding method includes determining whether motion information of spatial prediction units that are spatially collocated to a current prediction unit and motion information of temporal prediction units that are temporally collocated to the current prediction are available; when the number of the motion information of the spatial prediction units and the motion information of the temporal prediction units is less than a predetermined number, generating additional candidate motion information by using the available motion information of the spatial prediction units and the motion information of the temporal prediction units such that the total number of pieces of candidate motion information is the predetermined number; and decoding motion information of the current prediction unit by using the ‘n’ pieces of motion information.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: September 15, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Tammy Lee
  • Method and apparatus for encoding and decoding motion vector by predicting motion vector according to mode
    Patent number: 9131237
    Abstract: Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding a motion vector includes: selecting a mode from among a first mode in which information indicating a motion vector predictor of at least one motion vector predictor is encoded and a second mode in which information indicating generation of a motion vector predictor based on pixels included in a previously encoded area adjacent to a current block is encoded; determining a motion vector predictor of the current block according to the selected mode and encoding information about the motion vector predictor of the current block; and encoding a difference vector between a motion vector of the current block and the motion vector predictor of the current block.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: September 8, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy Lee, Woo-jin Han, Jung-hye Min
  • Method and apparatus for encoding video by using deblocking filtering, and method and apparatus for decoding video by using deblocking filtering
    Patent number: 9124903
    Abstract: A method and apparatus for encoding video by using deblocking filtering, and a method and apparatus for decoding video by using deblocking filtering are provided. The method of encoding video includes: splitting a picture into a maximum coding unit; determining coding units of coded depths and encoding modes for the coding units of the maximum coding unit by prediction encoding the coding units of the maximum coding unit based on at least one prediction unit and transforming the coding units based on at least one transformation unit, wherein the maximum coding unit is hierarchically split into the coding units as a depth deepens, and the coded depths are depths where the maximum coding unit is encoded in the coding units; and performing deblocking filtering on video data being inversely transformed into a spatial domain in the coding units, in consideration of the encoding modes.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: September 1, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hye Min, Tammy Lee, II-koo Kim
  • Method and apparatus for encoding video by using deblocking filtering, and method and apparatus for decoding video by using deblocking filtering
    Patent number: 9118916
    Abstract: A method and apparatus for encoding video by using deblocking filtering, and a method and apparatus for decoding video by using deblocking filtering are provided. The method of encoding video includes: splitting a picture into a maximum coding unit; determining coding units of coded depths and encoding modes for the coding units of the maximum coding unit by prediction encoding the coding units of the maximum coding unit based on at least one prediction unit and transforming the coding units based on at least one transformation unit, wherein the maximum coding unit is hierarchically split into the coding units as a depth deepens, and the coded depths are depths where the maximum coding unit is encoded in the coding units; and performing deblocking filtering on video data being inversely transformed into a spatial domain in the coding units, in consideration of the encoding modes.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: August 25, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hye Min, Tammy Lee, Il-koo Kim
  • Method and apparatus for encoding video by using deblocking filtering, and method and apparatus for decoding video by using deblocking filtering
    Patent number: 9118915
    Abstract: A method and apparatus for encoding video by using deblocking filtering, and a method and apparatus for decoding video by using deblocking filtering are provided. The method of encoding video includes: splitting a picture into a maximum coding unit; determining coding units of coded depths and encoding modes for the coding units of the maximum coding unit by prediction encoding the coding units of the maximum coding unit based on at least one prediction unit and transforming the coding units based on at least one transformation unit, wherein the maximum coding unit is hierarchically split into the coding units as a depth deepens, and the coded depths are depths where the maximum coding unit is encoded in the coding units; and performing deblocking filtering on video data being inversely transformed into a spatial domain in the coding units, in consideration of the encoding modes.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: August 25, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hye Min, Tammy Lee, Il-koo Kim
  • METHOD FOR SAO COMPENSATION FOR ENCODING INTER-LAYER PREDICTION ERROR AND APPARATUS THEREFOR
    Publication number: 20150237376
    Abstract: Provided are scalable video encoding and decoding methods and apparatuses for compensating for inter-layer prediction errors between different layer images by using sample adaptive offsets (SAOs).
    Type: Application
    Filed: September 30, 2013
    Publication date: August 20, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Elena Alshina, Alexander Alshin, Chan-yul Kim, Tammy Lee
  • Method and apparatus for estimating motion vector using plurality of motion vector predictors, encoder, decoder, and decoding method
    Patent number: 9113110
    Abstract: Provided are a method and apparatus for estimating a motion vector using a plurality of motion vector predictors, an encoder, a decoder, and a decoding method. The method includes calculating spatial similarities between the current block and the plurality of neighboring partitions around the current block, selecting at least one of the neighboring partitions based on the calculated spatial similarities, and estimating a motion vector of the selected partition as the motion vector of the current block.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: August 18, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy Lee, Woo-jin Han