公开(公告)号：US09866875B2

公开(公告)日：2018-01-09

申请号：US15428696

申请日：2017-02-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woong-Il Choi ,  Woo-jin Han ,  Tammy Lee ,  Sun-il Lee

IPC: H04N19/30 ,  H04N19/70 ,  H04N19/91 ,  H04N19/176

CPC classification number: H04N19/91 ,  H04N19/124 ,  H04N19/172 ,  H04N19/176 ,  H04N19/30 ,  H04N19/44 ,  H04N19/61 ,  H04N19/70

Abstract: Entropy encoding and entropy decoding of image data are respectively performed whereby context modeling is performed on a context unit of blocks of the image data based on a context model of a previously encoded or decoded block.

公开(公告)号：US09654800B2

公开(公告)日：2017-05-16

申请号：US14626489

申请日：2015-02-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Woo-jin Han

IPC: H04N19/96 ,  H04N19/61 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/122 ,  H04N19/44 ,  H04N19/60 ,  H04N19/136 ,  H04N19/169 ,  H04N19/172 ,  H04N19/174

CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/122 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/96

Abstract: A video decoding apparatus for performing video decoding, in which a maximum split level of a transformation unit is determined based on maximum split information for an inter mode when information about a prediction mode indicates that a coding unit is predicted according to the inter mode. Accordingly, the information about the prediction mode indicates that the coding unit is predicted according to the inter mode, rather than according to any prediction modes.

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.

公开(公告)号：US09596472B2

公开(公告)日：2017-03-14

申请号：US14603268

申请日：2015-01-22

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.

公开(公告)号：US09584821B2

公开(公告)日：2017-02-28

申请号：US14609643

申请日：2015-01-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/30 ,  H04N19/503 ,  G06T9/00 ,  H04N19/176 ,  H04N19/119 ,  H04N19/147 ,  H04N19/122 ,  H04N19/61 ,  H04N19/96 ,  H04N19/91 ,  H04N19/13 ,  H04N19/182 ,  H04N19/50 ,  H04N19/60 ,  H04N19/107

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: A method of decoding an image in which wherein, when a prediction mode is an inter prediction mode, not an intra prediction mode, a size of at least one prediction unit in the coding unit is determined independently from a size of at least one transformation unit in the coding unit.

Abstract translation: 一种解码图像的方法，其中，当预测模式是帧间预测模式时，不是帧内预测模式，所述编码单元中的至少一个预测单元的大小独立于至少一个变换单元的大小来确定 在编码单元中。

公开(公告)号：US09549185B2

公开(公告)日：2017-01-17

申请号：US14924948

申请日：2015-10-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee

IPC: H04N19/124 ,  H04N19/176 ,  H04N19/61 ,  H04N19/463

CPC classification number: H04N19/124 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/436 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70 ,  H04N19/86

Abstract: A method of decoding a video includes determining an initial value of a quantization parameter (QP) used to perform inverse quantization on coding units included in a slice segment, based on syntax obtained from a bitstream; determining a slice-level initial QP for predicting the QP used to perform inverse quantization on the coding units included in the slice segment, based on the initial value of the QP; and determining a predicted QP of a first quantization group of a parallel-decodable data unit included in the slice segment, based on the slice-level initial QP.

公开(公告)号：US09544603B2

公开(公告)日：2017-01-10

申请号：US14446479

申请日：2014-07-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee

IPC: H04N19/124 ,  H04N19/176 ,  H04N19/61 ,  H04N19/463

CPC classification number: H04N19/124 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/436 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70 ,  H04N19/86

Abstract: A method of decoding a video includes determining an initial value of a quantization parameter (QP) used to perform inverse quantization on coding units included in a slice segment, based on syntax obtained from a bitstream; determining a slice-level initial QP for predicting the QP used to perform inverse quantization on the coding units included in the slice segment, based on the initial value of the QP; and determining a predicted QP of a first quantization group of a parallel-decodable data unit included in the slice segment, based on the slice-level initial QP.

公开(公告)号：US09432680B2

公开(公告)日：2016-08-30

申请号：US14975179

申请日：2015-12-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee

IPC: H04N19/44 ,  H04N19/52 ,  H04N19/11 ,  H04N19/573 ,  H04N19/577 ,  H04N19/513 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

CPC classification number: H04N19/44 ,  H04N19/11 ,  H04N19/513 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

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.

公开(公告)号：US09386325B2

公开(公告)日：2016-07-05

申请号：US14618201

申请日：2015-02-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/625 ,  G06T9/00 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/122 ,  H04N19/61 ,  H04N19/96 ,  H04N19/107 ,  H04N19/169

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 apparatus in which a size of at least one transformation unit in a coding unit is determined independently from a size of at least one prediction unit in the coding unit.

Abstract translation: 一种图像解码装置，其中独立于编码单元中的至少一个预测单元的大小来确定编码单元中的至少一个变换单元的大小。

公开(公告)号：US09204162B2

公开(公告)日：2015-12-01

申请号：US14622388

申请日：2015-02-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee

IPC: H04N19/513 ,  H04N19/44 ,  H04N19/593 ,  H04N19/52 ,  H04N19/11 ,  H04N19/573 ,  H04N19/577

CPC classification number: H04N19/44 ,  H04N19/11 ,  H04N19/513 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

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.