公开(公告)号：KR1020150009493A

公开(公告)日：2015-01-26

申请号：KR1020140148740

申请日：2014-10-29

Applicant: 삼성전자주식회사

Inventor： 김일구 ,  박영오

IPC: H04N19/51 ,  H04N19/58

CPC classification number: H04N19/56 ,  H04N19/124 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/61

Abstract: 본 발명은, 움직임 벡터 예측을 통해 움직임 벡터를 결정하는 방법 및 그 장치를 제안한다.
현재블록의 움직임 벡터를 예측하기 위해 참조되는 복수의 후보블록들의 움직임 벡터들을 포함하는 후보 움직임벡터 리스트를 결정하고, 복수의 후보블록들 중에서 제1 후보블록의 참조영상이 현재블록의 참조영상과 다른 경우에, 현재블록의 참조영상과 상기 제1 후보블록의 참조영상이 각각 숏텀 참조영상(Short-term reference picture) 또는 롱텀 참조영상(Long-term reference picture)인지 여부에 기초하여, 후보 움직임벡터 리스트에서 상기 제1 후보블록의 움직임 벡터를 사용할지 여부를 결정하여, 후보 움직임벡터 리스트에 포함된 움직임 벡터들 중에서 선택된 후보 움직임 벡터를 이용하여 현재블록의 움직임 벡터를 결정하는 방법이 개시된다.

Abstract translation: 本发明提出一种通过运动矢量预测来确定运动矢量的方法和装置。 公开了一种通过以下方式确定当前块的运动矢量的方法：确定包括参考的多个候选块的运动矢量的候选运动矢量列表，以便预测当前块的运动矢量; 基于当前块的参考图像和第一候选块的参考图片是否是短期参考图片或长期参考图片来确定是否使用候选运动矢量列表中的第一候选块的运动矢量 在候选块中的第一候选块的参考图片与当前块的参考图片不同的情况下，分别参考图像; 以及使用从候选运动矢量列表中包括的运动矢量中选择的候选运动矢量。

公开(公告)号：KR1020140052831A

公开(公告)日：2014-05-07

申请号：KR1020130116913

申请日：2013-09-30

Applicant: 삼성전자주식회사 ,  연세대학교 산학협력단

Inventor： 박영오 ,  최광표 ,  김찬열 ,  최병두 ,  노원우 ,  김경아 ,  김덕호 ,  김민우

IPC: H04N19/50 ,  H04N19/00

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/124 ,  H04N19/172 ,  H04N19/177 ,  H04N19/31 ,  H04N19/436 ,  H04N19/44 ,  H04N19/51 ,  H04N19/70 ,  H04N19/91

Abstract: Disclosed are a video encoding method and a video decoding method for parallel processing. The video encoding method for parallel processing determines an encoding order and a reference dependency of pictures included in a GOP, and generates a predetermined data unit including the reference relation information generated based on the encoding order and reference dependency of the pictures included in the GOP and outputs the predetermined data unit.

Abstract translation: 公开了用于并行处理的视频编码方法和视频解码方法。 用于并行处理的视频编码方法确定GOP中包括的图像的编码顺序和参考依赖性，并且生成包括基于GOP中包括的图像的编码顺序和参考依赖性而生成的参考关系信息的预定数据单元，以及 输出预定数据单元。

公开(公告)号：KR1020140007057A

公开(公告)日：2014-01-16

申请号：KR1020130078072

申请日：2013-07-03

Applicant: 삼성전자주식회사

Inventor： 최병두 ,  박영오 ,  김일구 ,  김재현 ,  박정훈

IPC: H04N19/50

CPC classification number: H04N19/30 ,  H04N19/31 ,  H04N19/46 ,  H04N19/513 ,  H04N19/52 ,  H04N19/70

Abstract: A video encoding method having temporal scalability, a device, a video decoding method having temporal scalability, and a device are disclosed. The video encoding method divides pictures included a picture sequence into temporal sub layers, classifies a temporal layer access picture into a first temporal layer access picture and a second temporal layer access picture based on whether a picture included in a temporal sub layer higher than or the same as the temporal layer access picture can refer to a picture encoded before the temporal layer access picture, and adds type syntax information for identifying the first and second temporal layer access pictures to transmission unit data including the temporal layer access picture. [Reference numerals] (1410) Video encoding part; (1420) Multiplexing part; (AA) Video coding layer; (BB) Network abstraction layer; (CC) NAL unit

Abstract translation: 公开了具有时间可缩放性的视频编码方法，装置，具有时间可扩展性的视频解码方法和装置。 视频编码方法将包括图像序列的图像划分为时间子层，基于包括在时间子层中的图像是高于还是第二时间层访问图像，将时间层访问图像分类为第一时间层访问图像和第二时间层访问图像 与时间层访问图像相同的信息可以指在时间层访问图像之前编码的图像，并且将用于识别第一和第二时间层访问图像的类型语法信息添加到包括时间层访问图像的传输单元数据。 （附图标记）（1410）视频编码部分; （1420）复用部分; （AA）视频编码层; （BB）网络抽象层; （CC）NAL单位

公开(公告)号：KR1020130116217A

公开(公告)日：2013-10-23

申请号：KR1020130041277

申请日：2013-04-15

Applicant: 삼성전자주식회사

Inventor： 최병두 ,  박영오 ,  김재현 ,  박정훈

IPC: H04N19/00

CPC classification number: H04N19/30 ,  H04N19/44 ,  H04N19/463 ,  H04N19/577 ,  H04N19/61 ,  H04N19/68 ,  H04N19/70

Abstract: PURPOSE: A multilayer video encoding method, an apparatus for the same, a multilayer video decoding method and an apparatus for the multilayer video decoding method are provided to efficiently signal picture order count (POC) information used in encoding and decoding a multilayer video. CONSTITUTION: A receiving unit (91) obtains first POC information for determining a first partial value of a POC of a random access point picture which is identically set with a POC of a first random access point picture and obtains second POC information about a second partial value of a POC of a second random access point picture. The receiving unit obtains the POC of the second random access point picture using the first POC information and the second POC information. A multilayer decoding unit (92) decodes multiple multilayer image streams. [Reference numerals] (91) Receiving unit; (93) First layer decoding unit; (94) N^th layer decoding unit; (AA) Multilayer video stream (NAL unit); (BB) Network Abstraction Layer; (CC) N^th layer image; (DD) First layer image; (EE) Video Coding Layer

Abstract translation: 目的：提供一种多层视频编码方法，其设备，多层视频解码方法和用于多层视频解码方法的装置，用于有效地传送在多层视频编码和解码中使用的图像顺序计数（POC）信息。 构成：接收单元（91）获得用于确定与第一随机接入点图像的POC相同设置的随机接入点图像的POC的第一部分值的第一POC信息，并且获得关于第二部分的第二POC信息 第二随机接入点图像的POC的值。 接收单元使用第一POC信息和第二POC信息获得第二随机接入点图像的POC。 多层解码单元（92）解码多个多层图像流。 （附图标记）（91）接收单元; （93）第一层解码单元; （94）第N层解码单元; （AA）多层视频流（NAL单元）; （BB）网络抽象层; （CC）N层图像; （DD）第一层图像; （EE）视频编码层

公开(公告)号：KR1020130105214A

公开(公告)日：2013-09-25

申请号：KR1020120044670

申请日：2012-04-27

Applicant: 삼성전자주식회사

Inventor： 최병두 ,  김일구 ,  김찬열 ,  박영오 ,  박정훈 ,  이태미

IPC: H04N19/00

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

Abstract: PURPOSE: A scalable video encoding and decoding method and an apparatus for the same are provided to efficiently transmit diverse scalable extension type information applied when encoding a video while being compatible with various video compression methods. CONSTITUTION: A bitstream is generated by encoding a video according to at least one predetermined scalable extension type among multiple scalable extension types (S910). Scalable extension type information indicating a scalable extension type of an encoded video is added to the bitstream (S920). The scalable extension type information includes table index information indicating one scalable extension type information table of multiple scalable extension type information tables which define available combinations of the multiple scalable extension types and layer index information indicating the scalable extension type of the encoded video among the combinations of the multiple scalable extension types included in the scalable extension type information table. [Reference numerals] (910) Bitstream is generated by encoding a video according to at least one predetermined scalable extension type among multiple scalable extension types; (920) Scalable extension type information indicating a scalable extension type of an encoded video is added to the bitstream; (AA) Start; (BB) End

Abstract translation: 目的：提供可扩展的视频编码和解码方法及其装置，以在与各种视频压缩方法兼容的同时，高效地传输在编码视频时应用的各种可扩展的扩展类型信息。 构成：通过根据多个可伸缩扩展类型中的至少一个预定可伸缩扩展类型对视频进行编码来生成比特流（S910）。 指示编码视频的可扩展扩展类型的可伸缩扩展类型信息被添加到比特流（S920）。 可伸缩扩展类型信息包括指示多个可伸缩扩展类型信息表的一个可伸缩扩展类型信息表的表索引信息，该多个可伸缩扩展类型信息表定义了多个可伸缩扩展类型信息表的可用组合，以及表示编码视频的可伸缩扩展类型的组合 包括在可伸缩扩展类型信息表中的多个可扩展扩展类型。 （910）通过根据多个可伸缩扩展类型中的至少一个预定可伸缩扩展类型对视频进行编码来生成比特流; （920）指示编码视频的可扩展扩展类型的可扩展扩展类型信息被添加到比特流; （AA）开始; （BB）结束

公开(公告)号：KR1020130058584A

公开(公告)日：2013-06-04

申请号：KR1020120034093

申请日：2012-04-02

Applicant: 삼성전자주식회사

Inventor： 박영오 ,  김찬열 ,  최광표 ,  박정훈

IPC: H04N19/70 ,  H04N19/152

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

Abstract: PURPOSE: An image coding method for buffer management of a decoder and a device thereof, and an image decoding method and a device thereof are provided to transmit a bitstream after adding size information of a buffer required for decoding each image of an image sequence to the bitstream and to enable a decoder to perform decoding by allocating a buffer required for decoding images based on the size information of a buffer, thereby preventing the decoder from wasting system resources. CONSTITUTION: An image encoding device determines the maximum size of a buffer required for decoding each image frame in a decoder and the number of image frames requiring realignment(2020). The image encoding device determines latency information on an image frame that has the greatest difference between a decoding order and a display order among image frame forming an image sequence(2030). The image encoding device adds a first syntax representing the maximum size of a buffer, a second syntax representing the number of image frames requiring realignment, and a third syntax representing latency information to a set of essential sequence parameters that is a set of information related to the coding of an image sequence(2040). [Reference numerals] (2010) Determine a reference frame of each image frame which constitutes image sequences by performing the prediction and compensation of movement and encode each image frame by using a determined reference frame; (2020) Determine the maximum size of a buffer required for decoding each image frame in a decoder and the number of image frames requiring realignment; (2030) Determine latency information on an image frame that has the greatest difference between a decoding order and a display order among image frame forming an image sequence; (2040) Add a first syntax representing the maximum size of a buffer, a second syntax representing the number of image frames requiring realignment, and a third syntax representing latency information to a set of essential sequence parameters that is a set of information related to the coding of an image sequence; (AA) Start; (BB) End

Abstract translation: 目的：提供一种用于解码器及其装置的缓冲器管理的图像编码方法以及图像解码方法及其装置，用于在将图像序列的每个图像解码所需的缓冲器的大小信息添加到 并且通过基于缓冲器的大小信息分配解码图像所需的缓冲器来使解码器能够执行解码，从而防止解码器浪费系统资源。 构成：图像编码装置确定解码器中解码每个图像帧所需的缓冲器的最大尺寸以及需要重新对准的图像帧数（2020）。 图像编码装置确定在形成图像序列的图像帧中解码顺序和显示顺序之间具有最大差异的图像帧上的等待时间信息（2030）。 图像编码装置添加表示缓冲器的最大尺寸的第一语法，表示需要重新对准的图像帧的数量的第二语法，以及表示等待时间信息的第三语法，作为与一组信息相关的一组基本序列参数 图像序列的编码（2040）。 （附图标记）（2010）通过使用确定的参考帧来执行移动的预测和补偿来对每个图像帧进行编码来确定构成图像序列的每个图像帧的参考帧; （2020）确定对解码器中的每个图像帧进行解码所需的缓冲器的最大大小以及需要重新对准的图像帧的数量; （2030）在形成图像序列的图像帧中确定在解码顺序和显示顺序之间具有最大差异的图像帧上的等待时间信息; （2040）添加表示缓冲器的最大大小的第一语法，表示需要重新排列的图像帧的数量的第二语法，以及第三语法，其将等待时间信息表示为一组基本序列参数，该组基本序列参数是与 图像序列的编码; （AA）开始; （BB）结束

公开(公告)号：KR1020130050863A

公开(公告)日：2013-05-16

申请号：KR1020120037555

申请日：2012-04-10

Applicant: 삼성전자주식회사

Inventor： 박영오 ,  정승수 ,  김찬열 ,  박정훈

IPC: H04N19/105 ,  H04N19/577

CPC classification number: H04N19/105 ,  H04N19/577

Abstract: PURPOSE: A video encoding method with prediction using a reference list, a device thereof, a video decoding method thereof, and a device thereof are provided to set LC default number information per picture and to perform prediction encoding of a B slice type image by using a determined LC reference list. CONSTITUTION: A video prediction encoding device sets LC default number information per picture for prediction encoding of a B slice type image(111). The video prediction encoding device determines an LC reference list which includes one or more reference images included in an L0 reference list and an L1 reference list based on the LC default number information(112). The video prediction encoding device performs the prediction encoding of the image by using the determined LC reference list(113). [Reference numerals] (111) Set LC default number information per picture for prediction encoding of a B slice; (112) Determine an LC reference list which includes reference images of L0/L1 reference lists based on the LC default number information; (113) Predictively encode the B slice using the LC reference list; (AA) Start; (BB) End

Abstract translation: 目的：提供使用参考列表进行预测的视频编码方法，其装置，其视频解码方法及其装置，以设置每张图像的LC默认号码信息，并通过使用 一个确定的LC参考清单。 构成：视频预测编码装置设定每个图像的LC默认号码信息用于B片式图像（111）的预测编码。 视频预测编码装置根据LC默认编号信息（112）确定包括L0参考列表中包括的一个或多个参考图像和L1参考列表的LC参考列表。 视频预测编码装置通过使用确定的LC参考列表（113）来执行图像的预测编码。 （附图标记）（111）设置每个图像的LC默认号码信息用于B片的预测编码; （112）基于LC默认号码信息确定包含L0 / L1参考列表的参考图像的LC参考列表; （113）使用LC参考列表预测编码B片; （AA）开始; （BB）结束

公开(公告)号：KR1020130004436A

公开(公告)日：2013-01-10

申请号：KR1020120071986

申请日：2012-07-02

Applicant: 삼성전자주식회사

Inventor： 박영오 ,  최광표 ,  김찬열

IPC: H04N7/24

CPC classification number: H04N19/46 ,  H04N19/107 ,  H04N19/119 ,  H04N19/188 ,  H04N19/426 ,  H04N19/503 ,  H04N19/70 ,  H04N21/2387 ,  H04N21/42623 ,  H04N21/6587 ,  H04N21/8455

Abstract: PURPOSE: A multiplexing method, a device using the same, a demultiplexing method, and a device using the same for identifying the play state of video data is provided to save system resource used for decoding of pictures which do not need to be decoded by identifying a replay state whether a normal play state and a random access state in aspect of a hardware or a software related to a decoding device. CONSTITUTION: A video encoding unit encodes pictures comprising video data based on a data unit of a hierarchical structure(1810). When a decoding device requests encoded data transmission, a play state identification unit determines whether the transmission request is for a normal play or a random access(1820). According to results, a multiplexing unit adds a predetermined syntax to CRA(Clean Random Access) picture to multiplexed transmission unit data(1830). [Reference numerals] (1810) Encoding pictures comprising video data based on a data unit of a hierarchical structure; (1820) Determining whether the transmission request of the encoded data is for a normal play or a random access; (1830) Adding a predetermined syntax indicating an intra picture according to a request for the normal play or a request for the random access to transmission unit data multiplexing the intra picture with leading pictures; (AA) Start; (BB) End

Abstract translation: 目的：提供一种复用方法，使用该方法的装置，解复用方法以及使用该方法识别视频数据的播放状态的装置，以节省用于解码不需要解码的图像的系统资源， 在与解码装置相关的硬件或软件方面的重放状态是否正常播放状态和随机存取状态。 构成：视频编码单元根据层次结构（1810）的数据单位对包括视频数据的图像进行编码。 当解码装置请求编码数据传输时，播放状态识别单元确定发送请求是正常播放还是随机访问（1820）。 根据结果​​，复用单元向CRA（清除随机访问）图像添加预定语法到复用的传输单元数据（1830）。 （附图标记）（1810）基于分层结构的数据单位对包括视频数据的图像进行编码; （1820）确定编码数据的发送请求是正常播放还是随机接入; （1830）根据正常播放的请求添加指示画面内的预定语法，或者利用前导画面对内部画面进行复用的发送单元数据的随机存取请求; （AA）开始; （BB）结束

公开(公告)号：KR1020090084460A

公开(公告)日：2009-08-05

申请号：KR1020080010667

申请日：2008-02-01

Applicant: 삼성전자주식회사 ,  고려대학교 산학협력단

Inventor： 박영오 ,  송관웅 ,  주영훈 ,  최광표 ,  오윤제 ,  김창수 ,  안재균

IPC: G06T7/40 ,  G06T7/00

CPC classification number: G06T7/143 ,  G06T7/12 ,  G06T7/194 ,  G06T2207/10016 ,  G06T2207/20092

Abstract: A method for estimating an object boundary of a moving picture is provided to estimate a boundary of a background and a user object during a video call or video communication. In the first frame of a moving picture, an initial object boundary is presumed so that an object and a background are divided(210). Each color probability density function is estimated about the divided object and background(220). A boundary strip having a predetermined width is generated around an object boundary of the previous frame along with the object boundary of a previous frame in a current frame. A coherence probability density function of the boundary strip is presumed(230). Energy minimization is performed(240).

Abstract translation: 提供了一种用于估计运动图像的对象边界的方法，用于在视频通话或视频通信期间估计背景和用户对象的边界。 在运动图像的第一帧中，假定初始对象边界使得对象和背景被分割（210）。 估计每个颜色概率密度函数关于分割的对象和背景（220）。 沿着当前帧中的前一帧的对象边界，围绕前一帧的对象边界产生具有预定宽度的边界条。 推测边界条带的相干概率密度函数（230）。 执行能量最小化（240）。

公开(公告)号：KR100827094B1

公开(公告)日：2008-05-02

申请号：KR1020060105757

申请日：2006-10-30

Applicant: 삼성전자주식회사 ,  고려대학교 산학협력단

Inventor： 최정석 ,  박영오 ,  최광표 ,  주영훈 ,  김용덕 ,  송관웅 ,  김창수

IPC: H04N19/895

CPC classification number: H04N19/895 ,  H04N19/13 ,  H04N19/176 ,  H04N19/51 ,  H04N19/625

Abstract: A video decoding EC(Error Concealment) method and a decoding device using the same are provided to perform more exact EC by using double iteration technique and perform the EC by using an output signal of a decoder without big design change in the decoder. A bit stream of an NAL(Network Abstraction Layer) is decoded(402). Each frame is decoded(404). Each slice of each frame is decoded, and a macro block of each slice is decoded(406). If a macro block(or a slice) where an error is generated is generated, the slice with the error is decoded(408,410). An EC operation of the macro block with the error is performed by performing a first iteration process of a double iteration process(412). After that, an EC operation of the macro block with the error is performed by performing a secondary iteration process(414).

Abstract translation: 提供视频解码EC（误差隐藏）方法和使用其的解码装置，以通过使用双重迭代技术来执行更精确的EC，并且在解码器中通过使用解码器的输出信号而没有大的设计改变来执行EC。 NAL（网络抽象层）的比特流被解码（402）。 每帧被解码（404）。 对每个帧的每个片段进行解码，并且对每个片段的宏块进行解码（406）。 如果生成错误的宏块（或切片）生成了错误的切片（408,410）。 通过执行双重迭代处理的第一迭代处理（412）来执行具有错误的宏块的EC操作。 之后，通过执行二次迭代处理（414）来执行具有错误的宏块的EC操作。