公开(公告)号：US09787992B2

公开(公告)日：2017-10-10

申请号：US14415454

申请日：2013-07-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Alexander Alshin ,  Jeong-hoon Park

IPC: H04N19/14 ,  H04N19/103 ,  H04N19/13 ,  H04N19/186 ,  H04N19/463 ,  H04N19/82 ,  H04N19/91 ,  H04N19/86

CPC classification number: H04N19/14 ,  H04N19/103 ,  H04N19/13 ,  H04N19/186 ,  H04N19/463 ,  H04N19/82 ,  H04N19/86 ,  H04N19/91

Abstract: The present disclosure relates to signaling of sample adaptive offset (SAO) parameters determined to minimize an error between an original image and a reconstructed image in video encoding and decoding operations. An SAO decoding method includes obtaining context-encoded leftward SAO merge information and context-encoded upward SAO merge information from a bitstream of a largest coding unit (MCU); obtaining SAO on/off information context-encoded with respect to each color component, from the bitstream; if the SAO on/off information indicates to perform SAO operation, obtaining absolute offset value information for each SAO category bypass-encoded with respect to each color component, from the bitstream; and obtaining one of band position information and edge class information bypass-encoded with respect to each color component, from the bitstream.

公开(公告)号：US09769483B2

公开(公告)日：2017-09-19

申请号：US15492123

申请日：2017-04-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young-o Park ,  Chan-yul Kim ,  Kwang-pyo Choi ,  Jeong-hoon Park

IPC: H04N19/00 ,  H04N19/152 ,  H04N19/44 ,  H04N19/70

CPC classification number: H04N19/152 ,  H04N19/44 ,  H04N19/70

Abstract: Provided are methods and apparatuses for encoding and decoding an image. The method of encoding includes: determining a maximum size of a buffer to decode each image frame by a decoder, a number of image frames to be reordered, and latency information of an image frame having a largest difference between an encoding order and a display order from among image frames that form an image sequence, based on an encoding order the image frames that form the image sequence, an encoding order of reference frames referred to by the image frames, a display order of the image frames, and a display order of the reference frames; and adding, to a mandatory sequence parameter set, a first syntax indicating the maximum size of the buffer, a second syntax indicating the number of image frames to be reordered, and a third syntax indicating the latency information.

公开(公告)号：US09723321B2

公开(公告)日：2017-08-01

申请号：US14434345

申请日：2013-10-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Jeong-hoon Park ,  Chan-yul Kim

IPC: H04N19/513 ,  H04N19/597 ,  H04N19/503 ,  H04N19/70 ,  H04N19/46 ,  H04N19/172 ,  H04N19/187 ,  H04N19/169 ,  H04N7/32

CPC classification number: H04N19/513 ,  H04N19/172 ,  H04N19/187 ,  H04N19/188 ,  H04N19/46 ,  H04N19/503 ,  H04N19/597 ,  H04N19/70

Abstract: A decoding method includes obtaining random access point (RAP) reference layer number information indicating a number of layers referred to for performing inter layer prediction on RAP images among current layer images and non-RAP reference layer number information indicating a number of different layers referred to for performing inter layer prediction on non-RAP images, from a video stream including images encoded for a plurality of layers, obtaining RAP reference layer identification information for a layer referred to for predicting the RAP images based on the obtained RAP reference layer number information, from the video stream, obtaining non-RAP reference layer identification information for a layer referred to for predicting the non-RAP images based on the obtained non-RAP reference layer number information, and reconstructing a RAP image and a non-RAP image based on layer images indicated by the obtained RAP reference layer identification information and the obtained non-RAP reference layer identification information.

公开(公告)号：US09438933B2

公开(公告)日：2016-09-06

申请号：US14635545

申请日：2015-03-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo Kim ,  Jeong-hoon Park

IPC: H04N7/26 ,  H04N19/91 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/44 ,  H04N19/61 ,  H04N19/82 ,  H04N19/169 ,  G06K9/36 ,  H03M7/00 ,  H04N19/129 ,  H04N19/96

CPC classification number: H04N19/91 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/1887 ,  H04N19/44 ,  H04N19/61 ,  H04N19/82 ,  H04N19/96

Abstract: Methods and apparatuses for arithmetic encoding/decoding of video data. The arithmetic decoding method includes arithmetically decoding prefix bit strings representing a two-dimensional location of a last significant coefficient in a block sequentially by using a context model, arithmetically decoding suffix bit strings in a bypass mode, and performing inverse binarization on the arithmetically decoded prefix bit strings and suffix bit strings to acquire the location of the last significant coefficient in the block.

Abstract translation: 视频数据的算术编码/解码方法和装置。 算术解码方法包括通过使用上下文模型对块中最后有效系数的二维位置进行算术解码的前缀比特串，以旁路模式算术解码后缀比特串，并对算术解码前缀进行逆二值化 位串和后缀位串来获取块中最后一个有效系数的位置。

公开(公告)号：US09426492B2

公开(公告)日：2016-08-23

申请号：US14645570

申请日：2015-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chan-yul Kim ,  Jae-hyun Kim ,  Jeong-hoon Park

IPC: H04N19/60 ,  H04N19/70 ,  H04N19/196 ,  H04N19/122 ,  H04N19/463 ,  H04N19/18 ,  H04N19/91 ,  H04N19/44 ,  H04N19/136 ,  H04N19/13 ,  H04N19/96 ,  H04N19/157 ,  H03M7/40

CPC classification number: H04N19/13 ,  H03M7/4018 ,  H03M7/4075 ,  H04N19/115 ,  H04N19/122 ,  H04N19/136 ,  H04N19/139 ,  H04N19/157 ,  H04N19/18 ,  H04N19/184 ,  H04N19/196 ,  H04N19/44 ,  H04N19/463 ,  H04N19/60 ,  H04N19/70 ,  H04N19/91 ,  H04N19/96

Abstract: A method of decoding video including obtaining bit strings corresponding to current transformation coefficient level information by arithmetic decoding a bitstream based on a context model; determining a current binarization parameter by updating or maintaining a previous binarization parameter based on a comparison of a predetermined value and a size of a previous transformation coefficient; obtaining the current transformation coefficient level information by performing de-binarization of the bit strings using the determined current binarization parameter; and generating a size of a current transformation coefficient using the current transformation coefficient level information, wherein the determining the current binarization parameter further comprising: when the previous binarization parameter is larger than the predetermined value, updating the previous binarization parameter; and when the previous binarization parameter is not larger than the predetermined value, maintaining the previous binarization parameter.

Abstract translation: 一种解码视频的方法，包括通过基于上下文模型对位流进行算术解码来获得与当前变换系数电平信息相对应的位串; 通过基于预定值与前一变换系数的大小的比较来更新或维持先前二值化参数来确定当前二值化参数; 通过使用所确定的当前二值化参数来执行位串的二进制化来获得当前变换系数电平信息; 以及使用所述当前变换系数级别信息生成当前变换系数的大小，其中确定所述当前二进制化参数还包括：当所述先前二值化参数大于所述预定值时，更新所述二值化参数; 并且当以前的二值化参数不大于预定值时，维持先前的二值化参数。

公开(公告)号：US09277242B2

公开(公告)日：2016-03-01

申请号：US14514858

申请日：2014-10-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chan-yul Kim ,  Jae-hyun Kim ,  Jeong-hoon Park

IPC: H04N19/60 ,  H04N19/70 ,  H04N19/463 ,  H04N19/91 ,  H04N19/44 ,  H04N19/196 ,  H04N19/13 ,  H04N19/122 ,  H04N19/96 ,  H04N19/157 ,  H04N19/18

CPC classification number: H04N19/13 ,  H03M7/4018 ,  H03M7/4075 ,  H04N19/115 ,  H04N19/122 ,  H04N19/136 ,  H04N19/139 ,  H04N19/157 ,  H04N19/18 ,  H04N19/184 ,  H04N19/196 ,  H04N19/44 ,  H04N19/463 ,  H04N19/60 ,  H04N19/70 ,  H04N19/91 ,  H04N19/96

Abstract: Methods and apparatuses for decoding and encoding video are provided. A method includes obtaining bit strings corresponding to current transformation coefficient level information by arithmetic decoding a bitstream based on a context model that indicates a probability as to whether a bit from a bit string is a one or a zero, updating or maintaining a previous binarization parameter based on a comparison of a predetermined value and a size of a previous transformation coefficient, obtaining the current transformation coefficient level information by performing de-binarization of the bit strings using the determined current binarization parameter, and generating a size of a current transformation coefficient using the current transformation coefficient level information.

Abstract translation: 提供了解码和编码视频的方法和装置。 一种方法包括通过基于上下文模型对位流进行算术解码来获得与当前变换系数级信息相对应的比特串，该上下文模型指示来自比特串的比特是一个还是零的概率，更新或维持先前的二值化参数 基于预定值与先前变换系数的大小的比较，通过使用所确定的当前二值化参数执行比特串的二值化，获得当前变换系数电平信息，并且使用 当前变换系数级信息。

公开(公告)号：US20150172679A1

公开(公告)日：2015-06-18

申请号：US14413154

申请日：2013-07-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Jae-hyun Kim ,  Jeong-hoon Park

IPC: H04N19/169 ,  H04N19/187 ,  H04N19/46 ,  H04N19/176

CPC classification number: H04N19/188 ,  H04N19/176 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70 ,  H04N21/234327 ,  H04N21/236

Abstract: A multilayer video encoding method includes encoding a multilayer video, generating network adaptive layer (NAL) units for data units included in the encoded multilayer video, and adding scalable extension type information, for a scalable extension of the multilayer video, to a video parameter set (VPS) NAL unit among the NAL units, the VPS NAL unit including VPS information that is information commonly applied to the multilayer video.

Abstract translation: 多层视频编码方法包括对多层视频进行编码，为包括在编码多层视频中的数据单元生成网络自适应层（NAL）单元，以及将用于多层视频的可扩展扩展的可扩展扩展类型信息添加到视频参数集 （VPS）NAL单元，VPS NAL单元包括通常应用于多层视频的信息的VPS信息。

公开(公告)号：US20150131713A1

公开(公告)日：2015-05-14

申请号：US14394955

申请日：2013-04-16

Applicant: SAMSUNG ELECTRONICS CO. LTD.

Inventor： Chan-yul Kim ,  Woong-il Choi ,  Jae-hyun Kim ,  Jeong-hoon Park

IPC: H04N19/132 ,  H04N19/60 ,  H04N19/167 ,  H04N19/14 ,  H04N19/182

CPC classification number: H04N19/132 ,  H04N19/119 ,  H04N19/129 ,  H04N19/14 ,  H04N19/147 ,  H04N19/167 ,  H04N19/176 ,  H04N19/182 ,  H04N19/59 ,  H04N19/60 ,  H04N19/85 ,  H04N19/96

Abstract: A video encoding method and apparatus using fast edge detection for determining a split shape of a picture is disclosed. A split shape of coding units having a tree structure is obtained by replacing a sampling unit having a predetermined size with one of an edge pixel and a normal pixel based on a maximum high frequency component obtained through orthogonal transformation on the sampling unit and obtaining a down-sampled picture, and repeatedly performing a process of splitting the down-sampled picture into the coding units and splitting the coding unit into lower coding units according to whether the edge pixel is present in the coding unit.

Abstract translation: 公开了一种使用快速边缘检测来确定图像的分割形状的视频编码方法和装置。 通过在采样单元上通过正交变换获得的最大高频分量替换具有边缘像素和正常像素中的一个的具有预定尺寸的采样单元，获得具有树结构的分割形状，并获得下降 并且重复执行将下采样图像分割为编码单元的处理，并且根据边缘像素是否存在于编码单元中将编码单元分割成较低的编码单位。

公开(公告)号：US20150023432A1

公开(公告)日：2015-01-22

申请号：US14384992

申请日：2013-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Il-koo Kim ,  Chan-yul Kim ,  Young-o Park ,  Jeong-hoon Park ,  Tammy Lee

IPC: H04N19/30 ,  H04N19/46

CPC classification number: H04N19/30 ,  H04N19/46 ,  H04N19/70

Abstract: Disclosed are a scalable video encoding method and apparatus and a scalable video decoding method and apparatus. The scalable video encoding method adds, into a bitstream, table index information representing one of a plurality of scalable extension type information tables in which available combinations of a plurality of scalable extension types are specified and layer index information representing the scalable extension type of the encoded video among combinations of a plurality of scalable extension types included in a scalable extension type information table.

Abstract translation: 公开了一种可分级视频编码方法和装置以及可伸缩视频解码方法和装置。 可分级视频编码方法将表示多个可伸缩扩展类型信息表中的一个的表索引信息添加到比特流中，其中指定了多个可伸缩扩展类型的可用组合，以及表示编码的可扩展扩展类型的可扩展扩展类型的层索引信息 包括在可伸缩扩展类型信息表中的多个可伸缩扩展类型的组合之间的视频。

公开(公告)号：US20150010056A1

公开(公告)日：2015-01-08

申请号：US14373414

申请日：2013-01-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Chan-yul Kim ,  Tammy Lee ,  Jeong-hoon Park

IPC: H04N19/13 ,  H04N19/136 ,  H04N19/91 ,  H04N19/176 ,  H04N19/436

CPC classification number: H04N19/46 ,  H04N19/176 ,  H04N19/436 ,  H04N19/91 ,  H04N19/96

Abstract: A video encoding method includes: generating encoding symbols by performing source coding on subregions formed by splitting a picture in a vertical direction, based on blocks having a predetermined size; determining a reference block to be referred to for determining code probability information of a start block in a current subregion, the reference block being determined from among boundary blocks of a neighboring subregion which are encoded before the start block and adjacent to a boundary between the current subregion and the neighboring subregion; performing entropy encoding on blocks of the current subregion, starting from the start block, by using the encoding symbols of the blocks of the current subregion based on the code probability information of the start block determined by using code probability information of the determined reference block; and performing entropy encoding on another subregion in parallel with performing entropy encoding on the current subregion.

Abstract translation: 视频编码方法包括：基于具有预定大小的块，通过对沿垂直方向分割图像形成的子区域进行源编码来产生编码符号; 确定要参考的用于确定当前子区域中的起始块的代码概率信息的参考块，该参考块从相邻子区域的边界块中确定，该相邻子区域在开始块之前编码并且与当前子区域之间的边界相邻 分区域和邻近分区域; 基于通过使用所确定的参考块的代码概率信息确定的开始块的代码概率信息，通过使用当前子区域的块的编码符号，从起始块开始，对当前子区域的块执行熵编码; 以及对当前子区域执行熵编码并行地对另一子区域执行熵编码。