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公开(公告)号：KR100922275B1
公开(公告)日：2009-10-15
申请号：KR1020070109323
申请日：2007-10-30
Applicant: 경희대학교 산학협력단
IPC: H04N19/80 , H04N19/117 , H04N19/51
CPC classification number: H04N19/00909 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/61 , H04N19/80 , H04N19/86
Abstract: Provided are a bS derivation process and a deblocking filtering method and apparatus using illumination compensation and/or chrominance compensation, such as a multi-view video coding, in a picture coding/decoding process in which a prediction coding is performed. If neither of the two blocks are intra-coded, neither of the two blocks do contain a none-zero transformed coefficient, and motion compensation for the two blocks is performed based on the identical reference frame and the absolute difference between the horizontal or vertical components of the two motion vectors of the two blocks is less than 1, the bS of the two blocks is derived by considering whether the two blocks are coded by illumination compensation (IC) according to an embodiment of the present invention,. Specifically, if both of the two blocks are coded by IC mode or neither of the two blocks are coded by IC mode, bS is set as such a value that filtering is unnecessary. On the other hand, if both of the two blocks are coded by IC mode and the blocks have different illumination change values, or only one of the blocks is coded by IC mode, the bS is derived using difference of illumination change values or the illumination change value.
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公开(公告)号：KR1020090076762A
公开(公告)日：2009-07-13
申请号：KR1020080087435
申请日：2008-09-04
Applicant: 삼성전자주식회사 , 경희대학교 산학협력단
IPC: H04N19/597 , H04N19/103 , H04N13/00
CPC classification number: H04N19/44 , H04N19/597 , H04N19/70
Abstract: A multi-view video encoding method and an apparatus therefor and a multi-view video decoding method and an apparatus therefor are provided to restore a current block and a current picture by using additional information about the current picture, thereby improving coding performance and efficiency of the entire multi-view video. A block type determiner(110) determines a block type. The block type shows a determination method of a motion vector of a current block within a current picture. The first picture type determiner(120) determines the first picture type. The first picture type shows whether the current picture is a reference picture type for inter prediction. An additional information determiner(130) determines additional information about the current picture. An additional information encoder(140) encodes additional information about the current picture.
Abstract translation: 提供一种多视点视频编码方法及其装置以及多视点视频解码方法及其装置，用于通过使用关于当前图像的附加信息来恢复当前块和当前图像，从而提高编码性能和效率 整个多视图视频。 块类型确定器（110）确定块类型。 块类型示出当前图像内的当前块的运动矢量的确定方法。 第一图像类型确定器（120）确定第一图像类型。 第一图像类型示出当前图像是否是用于帧间预测的参考图像类型。 附加信息确定器（130）确定关于当前图片的附加信息。 附加信息编码器（140）编码关于当前图片的附加信息。
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公开(公告)号：KR1020090045035A
公开(公告)日：2009-05-07
申请号：KR1020080106035
申请日：2008-10-28
Applicant: 경희대학교 산학협력단
CPC classification number: H04N19/40 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/61 , H04N19/86
Abstract: Disclosed are a transcoding apparatus and method between two codecs each including a deblocking filter. The transcoding method between first and second codecs each including a deblocking filter, may include decoding input data encoded according to the first codec, according to the first codec so as to generate decoded data; and encoding the decoded data according to the second codec. The decoded data may include data on which deblocking filtering is not performed by the first codec, or data on which deblocking filtering is adaptively performed by the first codec. The decoded data may further include data on which deblocking filtering is performed by the first codec. The decoded data may be used as input data when the second codec performs encoding and/or when the second codec performs motion estimation.
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公开(公告)号：KR1020080097914A
公开(公告)日：2008-11-06
申请号：KR1020080026315
申请日：2008-03-21
Applicant: 삼성전자주식회사 , 경희대학교 산학협력단
IPC: H04N19/597 , H04N13/00 , H04N19/105
CPC classification number: H04N19/597 , H04N19/172 , H04N19/176
Abstract: A method and an apparatus of encoding and decoding a multi view moving picture are provided to apply a skip block mode to an anchor picture allowing referring only between views when coding the multi view moving picture, thereby improving image quality and coding efficiency. It is determined whether a picture is an anchor picture. When the picture is an anchor picture, a skip block mode is not applied when coding about blocks comprising the picture. Encoding about the block to which the skip block mode is applied is skipped(1040). In case that the picture is an anchor picture, it is determined whether a skip block mode is allowed when encoding the picture. According to the result, the skip block mode is selectively applied during the coding about blocks comprising the picture.
Abstract translation: 提供了对多视图运动图像进行编码和解码的方法和装置，以便在锚定图像上应用跳过块模式，从而仅允许在对多视图运动图像进行编码时在视图之间进行参考，从而提高图像质量和编码效率。 确定图片是否是锚图片。 当图像是锚图像时，当对包括图像的块进行编码时，不应用跳过块模式。 忽略应用跳过块模式的块的编码（1040）。 在图像是锚图像的情况下，确定当对图像进行编码时是否允许跳过块模式。 根据该结果，在关于包括图像的块的编码期间，有选择地应用跳过块模式。
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公开(公告)号：KR1020080051041A
公开(公告)日：2008-06-10
申请号：KR1020070106876
申请日：2007-10-23
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
IPC: H04N21/236 , H04N21/235 , H04N13/00
CPC classification number: H04N21/23614 , H04N5/23238 , H04N21/23605 , H04N21/4343 , H04N21/4348
Abstract: A system and a method for transmitting and receiving the multi-view point panoramic contents in order to enhance the transmission efficiency are provided to define the multi-view point contents obtained from a camera as each object and to offer only the contents requested by a user at real time. An encoding member(311) encodes the multi-view point panoramic contents. A scene producing member(312) defines the encoded contents as each object descriptor, produces a scene binary format stream and an IOD(Initial Object Descriptor) and produces a scene by means of the corresponding image stream adjacent to the request view point from a user. A packetizer packets the image stream, object descriptor stream, and scene binary format stream from the scene producing member. A multiplexing member(314) multiplexes the packetized image stream, object descriptor stream and scene binary format stream with the IOD produced by the scene producing member and transmits the multiplexed data.
Abstract translation: 提供了用于发送和接收多视点全景内容以提高传输效率的系统和方法，以将从相机获得的多视点内容定义为每个对象，并且仅提供用户请求的内容 实时。 编码构件（311）对多视点全景内容进行编码。 场景产生构件（312）将编码内容定义为每个对象描述符，产生场景二进制格式流和IOD（初始对象描述符），并且通过与来自用户的请求视点相邻的相应图像流产生场景 。 分组器从场景制作成员分组图像流，对象描述符流和场景二进制格式流。 复用部件（314）将分组化图像流，对象描述符流和场景二进制格式流与由场景生成部件生成的IOD进行复用，并发送复用数据。
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Patent Agency Ranking
公开(公告)号：KR100786132B1
公开(公告)日：2007-12-21
申请号：KR1020050102737
申请日：2005-10-31
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
IPC: H04N19/177 , H04N19/577
CPC classification number: H04N19/59 , H04N19/103 , H04N19/114 , H04N19/147 , H04N19/177 , H04N19/19 , H04N19/192 , H04N19/46 , H04N19/61 , H04N19/70
Abstract: 본 발명은 적응적으로 세분화된 GOP(Group of Picture) 구조를 이용하여 동영상 시퀀스에 대한 계층적 B 픽쳐-기반 부호화 및 복호화를 수행하기 위한 방법을 제공한다. 상기 부호화 방법은, 상기 동영상 시퀀스의 선정된 2
N 프레임 크기 GOP 각각에 대하여, (a) 상기 최대 2
N 크기부터 최소 2
M (M은 1 이상이고 N보다는 작은 정수임) 크기의 상이한 GOP 단위 각각에 기반하여 부호화를 수행하고 계층적 B 픽쳐 예측을 수행하여 도출된 프레임과 상기 부호화 후에 재구성된 프레임간의 차이값을 구하는 단계와, (b) 상기 상이한 GOP 단위 각각의 부호화 결과로부터 구해진 상기 차이값에 기반하여 적어도 1개 이상의 세부 GOP를 선택하는 단계와, (c) 상기 선택된 적어도 1개 이상의 세부 GOP에 근거하여 상기 선정된 2
N 프레임 크기의 GOP를 부호화함으로써 비트스트림을 생성하는 단계를 포함하는 것을 특징으로 한다. 본 발명에 따르면, 계층적 B-픽쳐를 이용한 동영상 부호화시에 GOP 크기를 성능에 따라 적응적으로 세분하여 부호화함으로써 높은 부호화 효율을 얻을 수 있다.
계층적 B-픽쳐 기반 부호화(hierarchical B-picture_based encoding), 동영상 부호화, 적응적 GOP 구조.-
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公开(公告)号：KR101878218B1
公开(公告)日：2018-07-16
申请号：KR1020120024671
申请日：2012-03-09
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
Abstract: 본발명은 MPEG-2 TS 기반방송서비스환경에서전달시간이다른콘텐츠를연동하여 3D 서비스를제공하기위한시그널링기술방법및 동기화방법으로서, 본발명에따른실시간, 비실시간연동형서비스기술에의하면기존방송과저장된파일의연동형미디어를도출함으로써, 몰입형멀티미디어의접근이쉬워지며, 다양한저장매체를활용하는서비스의기반기술로서활용될수 있으며, 본발명에서개발할 NRT저장콘텐츠와실시간방송을연동하여 3D 서비스를제공하기위한방법은향후, 두개의기술규격뿐만아니라, 다양한저장매체를활용하는연동형서비스기술개발의방향성을제시할것으로기대할수 있다.
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公开(公告)号：KR1020170051395A
公开(公告)日：2017-05-11
申请号：KR1020170052883
申请日：2017-04-25
Applicant: 경희대학교 산학협력단
IPC: H04N21/2662 , H04N21/231 , H04N21/24 , H04N21/442
Abstract: 본발명은비디오의구간을나누는단계및 나누어진구간에대한비트율의정보를전송하는단계를포함하고, 상기구간에대한비트율의정보는비디오의상기나누어진구간을정해진품질로압축했을때 상기구간을손실없이전송하는데필요한비트율인비디오제공방법을제공한다.
Abstract translation: 本发明丢失周期中当通过将所述视频的段指定的品质发送的比特率信息为球形步骤之间并划分来划分视频的时段，并且压缩在所述比特率的时间间隔的二进制信息的步骤 这是无比特率传输所需的比特率。
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公开(公告)号：KR101671021B1
公开(公告)日：2016-11-10
申请号：KR1020090038233
申请日：2009-04-30
Applicant: 삼성전자주식회사 , 경희대학교 산학협력단
CPC classification number: H04N13/178 , H04N13/172 , H04N21/235 , H04N21/2365 , H04N21/4347 , H04N21/4348
Abstract: 본발명에서는스테레오스코픽영상을다양한프로토콜에적용하여전송할수 있는방법을제안한다. 이를위해본 발명에서는스테레오스코픽패킷헤더와스테레오스코픽비디오패킷헤더를포함하는스테레오스코픽패킷을정의한다. 이렇게정의된스테레오스코픽패킷헤더와비디오패킷헤더는스테레오스코픽영상의전송에필요한메타데이터를전송하는데이용된다. 이렇게함으로써다양한전송프로토콜과의호환성을확보할수 있게된다.
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