公开(公告)号：US08971649B2

公开(公告)日：2015-03-03

申请号：US14299131

申请日：2014-06-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tammy Lee ,  Woo-jin Han ,  Jianle Chen ,  Hae-kyung Jung

IPC: G06K9/36 ,  G06T9/00 ,  H04N19/119 ,  H04N19/122 ,  H04N19/176 ,  H04N19/61 ,  H04N19/107 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/625 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/122 ,  H04N19/169 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: An image decoding method including determining coding units having a hierarchical structure for decoding an image using split information of a coding unit, determining at least one prediction unit for predicting a coding unit among the coding units using information about a partition type, determining at least one transformation unit for inversely transforming the coding unit using split information of the at least one transformation unit, wherein the split information of a coding unit, the information about a partition type and the information about a depth of the at least one transformation unit are parsed from a bitstream, parsing from the bitstream transformation coefficients generated by transformation according to the at least one transformation unit generated by dividing the coding unit, reconstructing residual of the at least one transformation unit by performing inverse quantization and inverse transformation on the parsed transformation coefficients, and performing intra prediction or inter prediction on the prediction unit to generate a predictor, and reconstructs the image based on the residual and the predictor.

Abstract translation: 一种图像解码方法，包括确定具有用于使用编码单元的分割信息对图像进行解码的分层结构的编码单元，使用关于分区类型的信息确定用于在编码单元中预测编码单元的至少一个预测单元，确定至少一个 变换单元，用于使用所述至少一个变换单元的分割信息对所述编码单元进行逆变换，其中编码单元的分割信息，关于分割类型的信息和关于所述至少一个变换单元的深度的信息被从 比特流，根据通过对编码单元进行分割而生成的至少一个变换单元，通过变换生成的比特流变换系数进行解析，对解析变换系数进行逆量化和逆变换，对至少一个变换单位的残差进行重构;以及 执行内部预处理 对预测单元进行预测或帧间预测以生成预测器，并且基于残差和预测器来重建图像。

公开(公告)号：US08923641B2

公开(公告)日：2014-12-30

申请号：US14299446

申请日：2014-06-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min-su Cheon ,  Woo-jin Han ,  Hae-kyung Jung ,  Il-koo Kim ,  Tammy Lee ,  Jianle Chen

IPC: G06K9/36 ,  H04N19/126 ,  H04N19/61 ,  H04N19/91

CPC classification number: H04N19/122 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/30 ,  H04N19/50 ,  H04N19/503 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91 ,  H04N19/96

Abstract: An apparatus for decoding an image includes an entropy decoder that performs entropy decoding to generate quantized transformation coefficients of a transformation unit in a coding unit and an inverse transformer that inverse quantizes the quantized transformation coefficients to generate transformation coefficients of the transformation unit and inverse transforms the transformation coefficients to generate residual components of the transformation unit.

Abstract translation: 用于对图像进行解码的装置包括熵解码器，其进行熵解码以产生编码单元中的变换单元的量化变换系数，以及逆量化变换系数的逆变换器，以生成变换单元的变换系数并逆变换 变换系数以生成变换单元的残差分量。

公开(公告)号：US20140286419A1

公开(公告)日：2014-09-25

申请号：US14300352

申请日：2014-06-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min-su Cheon ,  Woo-jin Han ,  Hae-kyung Jung ,  II-koo Kim ,  Tammy Lee ,  Jianle Chen

IPC: H04N19/503 ,  H04N19/44 ,  H04N19/61 ,  H04N19/593

CPC classification number: H04N19/122 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/30 ,  H04N19/50 ,  H04N19/503 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91 ,  H04N19/96

Abstract: An apparatus for decoding an image, the apparatus including an entropy decoder that performs entropy-decoding to obtain quantized transformation coefficients of at least one transformation unit in a coding unit of the image, a decoder that determines a prediction mode of at least one prediction unit in the coding unit from information indicating the prediction mode for the at least one prediction unit, when the prediction mode is determined to be an inter prediction mode, not in an intra prediction mode, determines a size of the at least one transformation unit in the coding unit regardless of a size of the at least one prediction unit in the coding unit, and performs inverse-quantization and inverse-transformation on the quantized transformation coefficients of the at least one transformation unit to obtain residuals, and a restorer that performs inter prediction for at least one prediction unit in the coding unit to generate a predictor and restores the image by using the residuals and the predictor.

Abstract translation: 一种用于对图像进行解码的装置，所述装置包括熵解码器，所述熵解码器执行熵解码以获得所述图像的编码单元中的至少一个变换单元的量化变换系数;解码器，确定至少一个预测单元的预测模式 在来自指示所述至少一个预测单元的预测模式的信息的编码单元中，当所述预测模式被确定为帧间预测模式时，在帧内预测模式中，确定所述至少一个变换单元的大小 编码单元，而不管编码单元中的至少一个预测单元的大小如何，并且对至少一个变换单元的量化变换系数执行逆量化和逆变换以获得残差;以及恢复器，执行帧间预测 对于编码单元中的至少一个预测单元来生成预测器，并通过使用残差a来恢复图像 和预测因子。

公开(公告)号：US08842921B2

公开(公告)日：2014-09-23

申请号：US13969816

申请日：2013-08-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tammy Lee ,  Woo-jin Han ,  Jianle Chen ,  Hae-kyung Jung

IPC: G06K9/36 ,  H04N7/12 ,  H04N19/119 ,  H04N19/107 ,  H04N19/70 ,  H04N19/96 ,  H04N19/176 ,  H04N19/61 ,  H04N19/122

CPC classification number: H04N19/625 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/122 ,  H04N19/169 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: Disclosed are an image encoding method and apparatus for encoding an image by grouping a plurality of adjacent prediction units into a transformation unit and transforming the plurality of adjacent prediction into a frequency domain, and an image decoding method and apparatus for decoding an image encoded by using the image encoding method and apparatus.

公开(公告)号：US11595684B2

公开(公告)日：2023-02-28

申请号：US17197872

申请日：2021-03-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Jianle Chen

IPC: H04N19/52 ,  H04N19/513 ,  H04N19/517 ,  H04N19/105 ,  H04N19/139 ,  H04N19/65 ,  H04N19/176

Abstract: Provided are methods and apparatus for encoding and decoding motion information. The method of encoding motion information includes: obtaining a motion information candidate by using motion information of prediction units that are temporally or spatially related to a current prediction unit; adding, when the number of motion information included in the motion information candidate is smaller than a predetermined number n, alternative motion information to the motion information candidate so that the number of motion information included in the motion information candidate reaches the predetermined number n; determining motion information with respect to the current prediction unit from among the n motion information candidates; and encoding index information indicating the determined motion information as motion information of the current prediction unit.

公开(公告)号：US11070811B2

公开(公告)日：2021-07-20

申请号：US16820191

申请日：2020-03-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim Seregin ,  Jianle Chen ,  Sun-il Lee ,  Tammy Lee

IPC: H04N19/13 ,  H04N19/46 ,  H04N19/593 ,  H04N19/463 ,  H04N19/186 ,  H04N19/119 ,  H04N19/11 ,  H04N19/154

Abstract: Methods and apparatuses for encoding and decoding an intra prediction mode of a prediction unit of a chrominance component based on an intra prediction mode of a prediction unit of a luminance component are provided. When an intra prediction mode of a prediction unit of a luminance component is the same as an intra prediction mode in an intra prediction mode candidate group of a prediction unit of a chrominance component, reconstructing the intra prediction mode candidate group of the prediction unit of the chrominance component by excluding or replacing an intra prediction mode of the prediction unit of the chrominance component which is same as an intra prediction mode of the prediction unit of the luminance component from the intra prediction mode candidate group, and encoding the intra prediction mode of the prediction unit of the chrominance component by using the reconstructed intra prediction mode candidate group.

公开(公告)号：US10419751B2

公开(公告)日：2019-09-17

申请号：US16232156

申请日：2018-12-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang-Hyun Lee ,  Tammy Lee ,  Jianle Chen ,  Dae-sung Cho ,  Woo-jin Han ,  Il-koo Kim

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/103 ,  H04N19/57 ,  H04N19/46 ,  H04N19/61 ,  H04N19/176 ,  H04N19/119

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.

公开(公告)号：US10075730B2

公开(公告)日：2018-09-11

申请号：US14724117

申请日：2015-05-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Jianle Chen

IPC: H04N19/51 ,  H04N19/13 ,  H04N19/61 ,  H04N19/91 ,  H04N19/52 ,  H04N19/593 ,  H04N19/82 ,  H04N19/96

CPC classification number: H04N19/52 ,  H04N19/13 ,  H04N19/51 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82 ,  H04N19/91 ,  H04N19/96

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.

公开(公告)号：US10045043B2

公开(公告)日：2018-08-07

申请号：US14724333

申请日：2015-05-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Jianle Chen

IPC: H04N19/51 ,  H04N19/91 ,  H04N19/13 ,  H04N19/61 ,  H04N19/52 ,  H04N19/593 ,  H04N19/82 ,  H04N19/96

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.

公开(公告)号：US09596474B2

公开(公告)日：2017-03-14

申请号：US14665646

申请日：2015-03-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Jianle Chen

IPC: H04N19/91 ,  H04N19/13 ,  H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/96 ,  H04N19/157 ,  H04N19/426 ,  H04N19/60 ,  H04N19/18 ,  H04N19/12 ,  H04N19/186 ,  H04N19/61

CPC classification number: H04N19/13 ,  H04N19/119 ,  H04N19/12 ,  H04N19/136 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/426 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91 ,  H04N19/96

Abstract: Provided are video encoding and decoding methods and apparatuses. The video encoding method includes: encoding a video based on data units having a hierarchical structure; determining a context model used for entropy encoding a syntax element of a data unit based on at least one piece of additional information of the data units; and entropy encoding the syntax element by using the determined context model.