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公开(公告)号：KR1020140092201A
公开(公告)日：2014-07-23
申请号：KR1020130082480
申请日：2013-07-12
Applicant: 한국전자통신연구원
IPC: H04N19/00 , H04N21/235
CPC classification number: H04N19/187 , H04N19/30 , H04N19/70
Abstract: The present invention relates to a scalability information expression method in a hierarchical video encoding and, more specifically, to a technique enabling an adaptive video transmission and consumption by describing extraction/scalability information in a video bitstream.
Abstract translation: 本发明涉及分层视频编码中的可伸缩性信息表达方法，并且更具体地涉及通过描述视频比特流中的提取/可伸缩性信息来实现自适应视频传输和消费的技术。
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公开(公告)号：KR1020140088014A
公开(公告)日：2014-07-09
申请号：KR1020130162524
申请日：2013-12-24
Applicant: 한국전자통신연구원
IPC: H04N19/31
CPC classification number: H04N19/52 , H04N19/187 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/34 , H04N19/36 , H04N19/50 , H04N19/503 , H04N19/593 , H04N19/597 , H04N19/70
Abstract: A method for decoding an image, which supports a plurality of layers, includes the steps of: receiving and parsing layer-dependent information on a reference layer, which a current layer refers to in an entire bit-stream; when an inter-layer prediction is used for decoding a current picture in the current layer, receiving and parsing layer information on a reference layer which the current picture refers to in the reference layer; and decoding the current picture based on the layer information.
Abstract translation: 一种用于对支持多层的图像进行解码的方法包括以下步骤：接收和解析当前层在整个比特流中参考的参考层上的与层相关的信息; 当使用层间预测来解码当前图层中的当前图像时，在参考层中接收和解析当前图片参考的参考层上的层信息; 并根据层信息解码当前画面。
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公开(公告)号：KR101356439B1
公开(公告)日：2014-02-05
申请号：KR1020110100675
申请日：2011-10-04
IPC: H04N7/24
CPC classification number: H04N19/44 , H04N19/18 , H04N19/46 , H04N19/593 , H04N19/60 , H04N19/64 , H04N19/70
Abstract: 두개의 후보 화면 내 예측 모드를 이용한 화면 내 예측 모드의 부/복호화 방법 및 이러한 방법을 사용하는 장치가 개시되어있다. 화면 내 예측 모드 복호화 방법은 1 비트 정보를 기초로 현재 예측 단위의 화면 내 예측 모드가 제1 후보 화면 내 예측 모드 또는 제2 후보 화면 내 예측 모드와 동일한지 여부를 판단하는 단계와 현재 예측 단위의 화면 내 예측 모드가 제1 후보 화면 내 예측 모드 또는 제2 후보 화면 내 예측 모드 중 적어도 하나와 동일한 경우, 추가의 1 비트 정보를 기초로 상기 현재 예측 단위의 화면 내 예측 모드가 상기 제1 후보 화면 내 예측 모드와 상기 제2 후보 화면 내 예측 모드 중 어떠한 후보 화면 내 예측 모드와 동일한지 여부를 판단하여 현재 예측 단위의 화면 내 예측 모드를 복호화하는 단계를 포함할 수 있다. 따라서, 부/복호화 효율을 높이고 복잡도를 감소시킬 수 있다.
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公开(公告)号：KR1020130118254A
公开(公告)日：2013-10-29
申请号：KR1020130041863
申请日：2013-04-16
Applicant: 한국전자통신연구원
IPC: H04N19/00
CPC classification number: H04N19/187 , H04N19/124 , H04N19/13 , H04N19/182 , H04N19/188 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/46 , H04N19/503 , H04N19/52 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/80 , H04N19/91
Abstract: PURPOSE: A decoding method of the bitstream capable of supporting a plurality of layers and a device using the same are provided to express the scalability information of various kinds of bitstream. CONSTITUTION: A parsing unit receives the information about the video parameter set including the information about a plurality of layers (501). The parsing unit parses the video parameter set, thereby understanding the information of the layer included in the bitstream (502). The information about the layers includes the maximum number of size information about various kinds of pictures included in the encoded video sequence. The information about the layers includes the index information about the set of frame size applied to the predetermined layer. [Reference numerals] (501) Receive information about the video parameter set including the information about a plurality of layer; (502) Understand the information of the layer by parsing the video parameter set
Abstract translation: 目的：提供能够支持多个层的比特流的解码方法和使用其的装置，以表达各种比特流的可扩展性信息。 构成：解析单元接收关于包括关于多个层的信息的视频参数集的信息（501）。 解析单元解析视频参数集，从而理解包含在比特流（502）中的层的信息。 关于层的信息包括关于编码视频序列中包括的各种图像的最大尺寸信息数量。 关于层的信息包括关于应用于预定层的帧大小的索引信息。 （附图标记）（501）接收关于包括关于多个层的信息的视频参数集的信息; （502）通过解析视频参数集来了解层的信息
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公开(公告)号：KR1020130116783A
公开(公告)日：2013-10-24
申请号：KR1020120112598
申请日：2012-10-10
Applicant: 한국전자통신연구원
IPC: H04N19/00
CPC classification number: H04N19/187 , H04N19/124 , H04N19/13 , H04N19/182 , H04N19/188 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/46 , H04N19/503 , H04N19/52 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/80 , H04N19/91
Abstract: PURPOSE: A scalability information expressing method in scalable video coding is provided to enable adaptive video transmission and consumption by describing extraction/scalability information in a video bit stream. CONSTITUTION: A bit stream containing a desired temporal layer is extracted by using the number of total temporal layers contained in a bit stream and the temporal_id value of a network abstraction layer unit (NALU) header. When decoding a picture constructed by an NALU containing a nal_ref_flag and storing the decoded picture in a decoded picture buffer (DPB), the nal_ref_flag is used to determine whether to express that the corresponding picture is to be used later as a reference picture. The nal_ref_flag is removed from the NALU header, or the semantics of the nal_ref_flag is changed.
Abstract translation: 目的：提供可伸缩视频编码中的可扩展性信息表达方法，通过描述视频比特流中的提取/可扩展性信息来实现自适应视频传输和消费。 构成：通过使用包含在比特流中的总时间层的数量和网络抽象层单元（NALU）头部的temporal_id值来提取包含期望时间层的比特流。 当对包含nal_ref_flag的NALU构成的图像进行解码并将解码的图像存储在解码图像缓冲器（DPB）中时，使用nal_ref_flag来确定是否将相应的图像稍后用作参考图像。 nal_ref_flag从NALU标头中删除，或nal_ref_flag的语义被更改。
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Patent Agency Ranking
公开(公告)号：KR1020130110128A
公开(公告)日：2013-10-08
申请号：KR1020130109465
申请日：2013-09-12
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/00024 , H04N19/105 , H04N19/11 , H04N19/119 , H04N19/122 , H04N19/146 , H04N19/176 , H04N19/40 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/91 , H04N19/59
Abstract: PURPOSE: An intra-encoding and intra-decoding method and a device thereof are provided to use a super macro block based intra-encoding method and a device which is not used in existing intra-encoding. CONSTITUTION: An intra-encoding and intra-decoding device includes an intra-prediction unit (930) which determines to divide a first block into four second blocks, and performs intra-prediction for the first block or the four second blocks based on the determination; a transcoding unit (950) which performs transcoding for a differential block generated based on an intra-prediction result; a quantizer (960) which quantizes the output of the transcoding unit; and an entropy encoder (970) which produces bitstream by performing entropy encoding for the output of the quantizer. [Reference numerals] (910) Motion prediction unit; (920) Motion compensation unit; (930) Intra-prediction unit; (950) Transcoding unit; (960) Quantizer; (970) Entropy encoder; (AA) Super macro block or m macro blocks; (BB) Reference block; (CC) Bit stream
Abstract translation: 目的：提供帧内编码和帧内解码方法及其装置，以使用基于超宏块的帧内编码方法和不用于现有帧内编码的装置。 内部编码和帧内解码装置包括帧内预测单元（930），其确定将第一块划分为四个第二块，并且基于该确定对第一块或第四块进行帧内预测 ; 对基于帧内预测结果生成的差分块执行代码转换的代码转换单元（950）; 量化器（960），其对所述代码转换单元的输出进行量化; 以及通过对量化器的输出执行熵编码来产生比特流的熵编码器（970）。 （附图标记）（910）运动预测单元; （920）运动补偿单元; （930）预测内部单元; （950）代码转换单元; （960）量化器; （970）熵编码器; （AA）超宏块或m宏块; （BB）参考块; （CC）位流
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公开(公告)号：KR1020130110124A
公开(公告)日：2013-10-08
申请号：KR1020130109449
申请日：2013-09-12
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/107 , H04N19/105 , H04N19/109 , H04N19/11 , H04N19/13 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/1887 , H04N19/196 , H04N19/50 , H04N19/52 , H04N19/521 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/91
Abstract: PURPOSE: The present invention is to provide an image encoding method and apparatus capable of improving efficiency of encoding/decoding of image, an image decoding method and apparatus, an intra prediction method and apparatus, an intra prediction mode encoding method and apparatus and an intra prediction mode decoding method and apparatus. CONSTITUTION: An image encoding apparatus comprises, a prediction part which determines an intra prediction mode for a unit to be encoded, derives peripheral prediction mode information from a left peripheral prediction mode and an upper peripheral prediction mode and encodes the intra prediction mode for the unit to be encoded by using the derived peripheral prediction information, wherein the left peripheral prediction mode is an intra prediction mode of a left peripheral unit adjacent to the left of the unit to be encoded, the upper peripheral prediction mode is an intra prediction mode of an upper peripheral unit adjacent to the upper side of the unit to be encoded, and the peripheral prediction mode information comprises a mode number of the left peripheral prediction mode and a mode number of the upper peripheral prediction mode. [Reference numerals] (S1310) Peripheral prediction mode information estimation; (S1320) Intra prediction mode decoding using the peripheral prediction mode information
Abstract translation: 目的：提供一种能够提高图像编码/解码效率的图像编码方法和装置，图像解码方法和装置，帧内预测方法和装置，帧内预测模式编码方法和装置以及帧内预测方法 预测模式解码方法和装置。 构成：图像编码装置包括：确定要编码的单元的帧内预测模式的预测部，从左周边预测模式和上周期预测模式导出周边预测模式信息，并对该单元的帧内预测模式进行编码 通过使用导出的外围预测信息进行编码，其中左周边预测模式是与要编码的单位的左侧相邻的左侧周边单元的帧内预测模式，上部周围预测模式是帧内预测模式 与要编码的单元的上侧相邻的上周边单元，并且周边预测模式信息包括左周预测模式的模式号和上周期预测模式的模式号。 （附图标记）（S1310）外围预测模式信息估计; （S1320）使用周边预测模式信息的帧内预测模式解码
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公开(公告)号：KR1020130107861A
公开(公告)日：2013-10-02
申请号：KR1020120029999
申请日：2012-03-23
Applicant: 한국전자통신연구원
CPC classification number: H04N19/503 , H04N19/30 , H04N19/33 , H04N19/59 , H04N19/593
Abstract: PURPOSE: An interlayer intra prediction method and an apparatus thereof perform interlayer intra prediction by using intra prediction data of a periphery block, thereby improving encoding efficiency. CONSTITUTION: A layer determining unit (910) determines a reference layer for interlayer intra prediction. The layer determining unit selects a candidate layer of the highest layer as the reference layer. A prediction data generator (920) produces intra prediction data from the reference layer. The prediction data generator produces intra prediction data based on an intra-predicted co-located block among front-to-back frames of the reference frame. An intra prediction part (930) performs interlayer prediction about a current block based on the intra prediction data. [Reference numerals] (910) Layer determining unit; (920) Prediction data generator; (930) Intra prediction part
Abstract translation: 目的：一种层间帧内预测方法及其装置，通过使用周边块的帧内预测数据进行层间帧内预测，从而提高编码效率。 构成：层确定单元（910）确定用于层间帧内预测的参考层。 层确定单元选择最高层的候选层作为参考层。 预测数据生成器（920）从参考层产生帧内预测数据。 预测数据生成器基于参考帧的前后帧之中的帧内预测的同位置块来生成帧内预测数据。 帧内预测部（930）基于帧内预测数据进行关于当前块的层间预测。 （附图标记）（910）层确定单元; （920）预测数据发生器; （930）帧内预测部分
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公开(公告)号：KR1020130106342A
公开(公告)日：2013-09-27
申请号：KR1020130109467
申请日：2013-09-12
Applicant: 한국전자통신연구원
IPC: H04N19/593 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/91 , H04N19/124 , H04N19/13 , H04N19/119 , H04N19/122 , H04N19/105 , H04N19/174
CPC classification number: H04N19/00024 , H04N19/105 , H04N19/11 , H04N19/119 , H04N19/122 , H04N19/146 , H04N19/176 , H04N19/40 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/91 , H04N19/593 , H04N19/124 , H04N19/13 , H04N19/174
Abstract: PURPOSE: An image encoding method and a computer-readable recording medium are provided to use a super macro block for an intra-encoding process, thereby improving an encoding performance. CONSTITUTION: An image encoding device includes a motion predictor (910), a motion compensator (920), an intra-predictor (930), a coupler (940), a conversion encoder (950), a quantizer (960), and an entropy encoder (970). The intra-predictor receives a super macro block with a size of 16nx16n (n is a natural number over two), and implements intra-prediction on the super macro block. The coupler obtains a difference between a predicted block generated by the intra-predictor and the super macro block, and then generates a differential block. [Reference numerals] (910) Motion predictor; (920) Motion compensator; (930) Intra-predictor; (950) Conversion encoder; (960) Quantizer; (970) Entropy encoder; (AA) Super macro block or m macro blocks; (BB) Reference block; (CC) Bit stream
Abstract translation: 目的：提供图像编码方法和计算机可读记录介质，以使用超宏块进行内编码处理，从而提高编码性能。 构成：图像编码装置包括运动预测器（910），运动补偿器（920），预测器内（930），耦合器（940），转换编码器（950），量化器（960）和 熵编码器（970）。 内部预测器接收大小为16n×16n的超宏块（n为2以上的自然数），并在超宏块上实现帧内预测。 耦合器获得由预测器产生的预测块与超宏块之间的差，然后生成差分块。 （参考数字）（910）运动预测器; （920）运动补偿器; （930）预测因子; （950）转换编码器; （960）量化器; （970）熵编码器; （AA）超宏块或m宏块; （BB）参考块; （CC）位流
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公开(公告)号：KR1020130086011A
公开(公告)日：2013-07-30
申请号：KR1020130006715
申请日：2013-01-21
Applicant: 한국전자통신연구원
IPC: H04N21/234 , H04N21/434
CPC classification number: H04N21/234 , H04N19/187 , H04N19/30 , H04N21/60
Abstract: PURPOSE: A method for transmitting video information, a video decoding method, a video encoder and a video decoder are provided to display only scalability information that can be expressed through a bitstream among a variety of scalability information, thereby improving encoding efficiency. CONSTITUTION: An encoder encodes an input video using scalable video coding (SVC) (S410). The encoder transmits the encoded video data to a bitstream (S420). The transmitted video data includes scalability information transmitted from a network abstract layer (NAL) unit header. A decoder decodes received video data based on the scalability information employed in the encoder. [Reference numerals] (S410) Video coding; (S420) Video information transmission
Abstract translation: 目的：提供用于传输视频信息的方法，视频解码方法，视频编码器和视频解码器，以仅显示可通过各种可缩放信息之间的比特流表达的可扩展性信息，从而提高编码效率。 构成：编码器使用可伸缩视频编码（SVC）编码输入视频（S410）。 编码器将编码的视频数据发送到比特流（S420）。 发送的视频数据包括从网络抽象层（NAL）单元报头发送的可扩展性信息。 解码器基于在编码器中采用的可扩展性信息对接收到的视频数据进行解码。 （参考号）（S410）视频编码; （S420）视频信息传输
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