公开(公告)号：US20150195586A1

公开(公告)日：2015-07-09

申请号：US14665666

申请日：2015-03-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Jianle CHEN

IPC: H04N19/91 ,  H04N19/186 ,  H04N19/12

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：US20150195539A1

公开(公告)日：2015-07-09

申请号：US14665625

申请日：2015-03-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Jianle CHEN

IPC: H04N19/13 ,  H04N19/18 ,  H04N19/136

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：US20150163514A1

公开(公告)日：2015-06-11

申请号：US14626422

申请日：2015-02-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Woo-jin HAN

IPC: H04N19/60 ,  H04N19/44

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 encoding method is provided, the method includes: encoding a current region of a video by performing a transformation on the current region by using transformation units in a variable tree-structure which are determined from among transformation units that are hierarchically split from a base transformation unit with respect to the current region and which are generated based on a maximum split level of a transformation unit; and outputting encoded data of the current region, information about an encoding mode, and transformation-unit hierarchical-structure information comprising maximum size information and minimum size information of the transformation unit with respect to the video.

Abstract translation: 提供一种视频编码方法，该方法包括：通过使用可变树结构中的变换单位对当前区域进行变换来对视频的当前区域进行编码，所述变换单位是从从基址分层分割的变换单元确定的 变换单元，其基于变换单元的最大分割水平生成; 并输出当前区域的编码数据，关于编码模式的信息，以及包括关于视频的变换单元的最大尺寸信息和最小尺寸信息的变换单元分层结构信息。

公开(公告)号：US20150163510A1

公开(公告)日：2015-06-11

申请号：US14627860

申请日：2015-02-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chan-yul KIM ,  Tammy LEE ,  Elena ALSHINA

IPC: H04N19/577 ,  H04N19/573 ,  H04N19/513

CPC classification number: H04N19/577 ,  H04N19/103 ,  H04N19/105 ,  H04N19/122 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/18 ,  H04N19/521 ,  H04N19/57 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70 ,  H04N19/96

Abstract: A motion prediction method includes determining, when a current slice is a B slice, a reference picture list to be used with respect to a current prediction unit from among prediction units included in a coding unit, and outputting, when a size of the current prediction unit is 4×8 or 8×4, inter-prediction index information of the current prediction unit indicating the reference picture list from among an L0 list and an L1 list, and when the size of the current prediction unit is not 4×8 or 8×4, the inter-prediction index information of the current prediction unit indicating the reference picture list from among the L0 list, the L1 list, and a bi-prediction list.

公开(公告)号：US20150156508A1

公开(公告)日：2015-06-04

申请号：US14622456

申请日：2015-02-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE

IPC: H04N19/513 ,  H04N19/44

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：US20150156507A1

公开(公告)日：2015-06-04

申请号：US14622388

申请日：2015-02-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE

IPC: H04N19/513

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：US20150146791A1

公开(公告)日：2015-05-28

申请号：US14611630

申请日：2015-02-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Woo-jin HAN ,  Tammy LEE ,  Il-koo KIM ,  Min-su CHEON

IPC: H04N19/635

CPC classification number: H04N19/60 ,  H04N19/122 ,  H04N19/172 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/635 ,  H04N19/96

Abstract: Encoding and decoding a video using transformation index that indicates information that indicates a structure of a transformation unit transforming data of a current coding unit.

Abstract translation: 使用指示表示当前编码单元的变换数据的变换单位的结构的信息的变换索引对视频进行编码和解码。

公开(公告)号：US20150139563A1

公开(公告)日：2015-05-21

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: H04N19/503 ,  H04N19/61 ,  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：US20150139327A1

公开(公告)日：2015-05-21

申请号：US14603121

申请日：2015-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE

IPC: H04N19/513 ,  H04N19/44

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.

Abstract translation: 一种用于编码和解码运动信息的方法和装置。 编码方法包括：确定空间上并置到当前预测单元的空间预测单元的运动信息和时间上与当前预测并置的时间预测单元的运动信息是否可用; 当空间预测单元的运动信息的数量和时间预测单元的运动信息少于预定数量时，通过使用空间预测单元的可用运动信息和运动信息生成附加的候选运动信息 时间预测单元，使得候选运动信息的总数为预定数; 以及通过使用'n'个运动信息来解码当前预测单元的运动信息。

公开(公告)号：US20150139313A1

公开(公告)日：2015-05-21

申请号：US14600899

申请日：2015-01-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Tammy LEE ,  Il-koo KIM

IPC: H04N19/86 ,  H04N19/80 ,  H04N19/61

CPC classification number: H04N19/86 ,  H04N19/105 ,  H04N19/117 ,  H04N19/119 ,  H04N19/122 ,  H04N19/139 ,  H04N19/157 ,  H04N19/159 ,  H04N19/182 ,  H04N19/395 ,  H04N19/50 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/96

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.