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公开(公告)号：KR101711894B1
公开(公告)日：2017-03-03
申请号：KR1020150056179
申请日：2015-04-21
Applicant: 한국항공대학교산학협력단
IPC: H04N19/103 , H04N19/503 , H04N19/70 , H04N19/59 , H04N19/147
Abstract: 상위깊이의부호화정보를이용하여영상부호화장치의복잡도를감소시키고영상부호화를고속으로구현할수 있는영상부호화방법이개시되며, 본원의영상부호화방법은 (a) 현재부호화유닛에대응하는상위서브(sub) 부호화유닛의부호화정보를수집하는단계, 및 (b) 상기수집한상위서브부호화유닛의부호화정보에기초하여상기현재부호화유닛에대한예측부호화모드를결정하는단계를포함할수 있다.
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公开(公告)号：KR1020160057364A
公开(公告)日：2016-05-23
申请号：KR1020160055707
申请日：2016-05-04
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N19/59 , H04N19/105 , H04N19/11 , H04N19/124
CPC classification number: H04N19/157 , H04N19/11 , H04N19/176 , H04N19/198 , H04N19/593 , H04N19/70
Abstract: 인트라예측모드부호화및 복호화방법, 그리고영상복호화장치및 영상부호화장치가개시된다. 상기인트라예측모드복호화방법은현재예측단위에인접한주변예측단위로부터 MPM(Most Probable Mode)을도출하는단계및 상기도출된 MPM 중상기현재예측단위의인트라예측모드와동일한예측모드를가지는 MPM이존재하는지여부를지시하는 MPM 플래그를기반으로상기현재예측단위의인트라예측모드를도출하는단계를포함한다.
Abstract translation: 公开了一种用于帧内预测模式的编码/解码的方法，用于对图像进行解码的装置以及用于编码图像的装置。 根据本发明，该方法包括：从与当前预测单元相邻的周围预测单元中引入最可能模式（MPM）的步骤; 以及基于指示在所述诱导的MPM中是否存在具有与当前预测单元的帧内预测模式相同的预测模式的MPM的MPM标志来诱导当前预测单元的帧内预测模式的步骤。 本发明提供一种用于以增强的图像编码/解码效率对图像进行编码/解码的方法。
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公开(公告)号：KR101620619B1
公开(公告)日：2016-05-12
申请号：KR1020130010488
申请日：2013-01-30
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N19/59
CPC classification number: H04N19/157 , H04N19/11 , H04N19/176 , H04N19/198 , H04N19/593 , H04N19/70
Abstract: 인트라예측모드부호화및 복호화방법, 그리고영상복호화장치및 영상부호화장치가개시된다. 상기인트라예측모드복호화방법은현재예측단위에인접한주변예측단위로부터 MPM(Most Probable Mode)을도출하는단계및 상기도출된 MPM 중상기현재예측단위의인트라예측모드와동일한예측모드를가지는 MPM이존재하는지여부를지시하는 MPM 플래그를기반으로상기현재예측단위의인트라예측모드를도출하는단계를포함한다.
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公开(公告)号：KR1020160031060A
公开(公告)日：2016-03-22
申请号：KR1020110131076
申请日：2011-12-08
Applicant: 한국항공대학교산학협력단
IPC: H04N7/24
CPC classification number: H04N19/30 , H04N19/13 , H04N19/176 , H04N19/70
Abstract: 본발명은엔트로피부호화를위한문맥모델을결정하는방법에관한것이다. 그방법은향상계층의부호화대상블록에적용되는문맥모델을결정하는단계; 및향상계층의부호화대상블록에대한문맥모델을기초계층의대응되는블록에대한문맥모델을이용하여업데이트하는단계를포함한다.
Abstract translation: 本发明涉及一种用于确定熵编码的上下文模型的方法。 该方法包括以下步骤：确定应用于增强层的编码目标块的上下文模型; 以及通过使用关于与基本层相对应的块的上下文模型来更新关于增强层的编码目标块的上下文模型。 因此，该方法降低了比特率以提高编码效率。
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公开(公告)号：KR1020140033182A
公开(公告)日：2014-03-17
申请号：KR1020140002413
申请日：2014-01-08
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N21/2662 , H04N21/238 , H04N7/24
CPC classification number: H04N21/2662 , H04N7/24 , H04N21/23805 , H04N21/2401 , H04N21/6543
Abstract: Disclosed are an apparatus and a method for providing an adaptive HTTP streaming service using metadata for contents. The metadata includes minimum buffering time property indicating the minimum amount of media contents which are initially buffered. A terminal receives contents from a server before playing the contents and buffers the contents by at least the minimum amount. The metadata includes range properties indicating a target range to which a URL points. A terminal receives bytes from the URL which the range properties indicate, and plays the contents using the received bytes. [Reference numerals] (100) Client; (110) Server; (120) Metadata; (130) Metadata process; (140) Request a fragment; (145) Content pass; (150) Fragment transmission
Abstract translation: 公开了一种使用元数据为内容提供自适应HTTP流服务的装置和方法。 元数据包括指示最初缓冲的媒体内容的最小量的最小缓冲时间属性。 终端在播放内容之前从服务器接收内容，并将内容缓冲至少最小量。 元数据包括指示URL指向的目标范围的范围属性。 终端从范围属性指示的URL接收字节，并使用接收的字节播放内容。 （附图标记）（100）客户端; （110）服务器; （120）元数据; （130）元数据过程; （140）请求片段; （145）内容通行证 （150）片段传输
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Patent Agency Ranking
公开(公告)号：KR1020130099852A
公开(公告)日：2013-09-06
申请号：KR1020130020447
申请日：2013-02-26
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N19/59
CPC classification number: H04N19/50 , H04N19/105 , H04N19/159 , H04N19/176
Abstract: PURPOSE: A method for encoding and decoding in an intra prediction mode is provided to simply induce an intra prediction mode without a complicated operation process. CONSTITUTION: If two identical induced most probable modes (MPMs) induced in adjacent prediction units are not included in at least two set prediction modes, an image encoding device sets up remaining two MPMs of an MPM list consisting of three MPMs for a current prediction unit out of the set prediction mode and a proximity prediction mode adjacent to the induced MPMs (S1001,S1003). The image encoding device encodes a prediction mode for the current prediction unit based on the induced MPMs and the set remaining two MPMs. [Reference numerals] (AA) MPM list organization; (S1001) Left MPM=Previously-defined encoding mode A or Left MPM=Previously-defined encoding mode B; (S1002) MPM[0]=Previously-defined encoding mode A, MPM[1]=Previously-defined encoding mode B, MPM[2]=Previously-defined encoding mode C; (S1003) MPM[0]=Left MPM, MPM[1]=Previously-defined encoding mode A, MPM[2]=Previously-defined encoding mode B
Abstract translation: 目的：提供一种帧内预测模式的编码和解码方法，以简单地引导帧内预测模式，而不需要复杂的操作过程。 构成：如果在至少两组预测模式中不包括在相邻预测单元中诱导的两个相同的诱导最可能模式（MPM），则图像编码装置设置由用于当前预测单元的三个MPM组成的MPM列表的剩余两个MPM （S1001，S1003）附近的邻近预测模式。 图像编码装置根据诱导的MPM和剩下的两个MPM对当前预测单元的预测模式进行编码。 （附图）（AA）MPM清单组织; （S1001）左MPM =以前定义的编码模式A或左MPM =以前定义的编码模式B; （S1002）MPM [0] =以前定义的编码模式A，MPM [1] =以前定义的编码模式B，MPM [2] =以前定义的编码模式C; （S1003）MPM [0] =左MPM，MPM [1] =以前定义的编码模式A，MPM [2] =以前定义的编码模式B
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公开(公告)号：KR1020130030232A
公开(公告)日：2013-03-26
申请号：KR1020120102214
申请日：2012-09-14
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N19/51 , H04N19/139
CPC classification number: H04N19/56 , H04N19/105 , H04N19/13 , H04N19/139 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/70
Abstract: PURPOSE: A method for inducing a prediction MV(Motion Vector) and a device using the method are provided to reduce complexity generated when inducing the prediction MV by calculating a final prediction MV by forming a candidate prediction MV list. CONSTITUTION: An image encoding/decoding device induces temporal candidate prediction MV information based on spatial candidate prediction MV information(S1420). The device adds an induced candidate prediction MV to a candidate prediction MV list(S1430). The device removes the same candidate prediction MV to reform the candidate prediction MV list(S1440). The device determines a final prediction MV from the candidate prediction MV list(S1460). [Reference numerals] (AA) Start; (BB) End; (S1400) Guiding spatial candidate prediction motion vectors; (S1410) Determining whether two induced spatial candidate prediction motion vectors are different from each other; (S1420) Inducing temporal candidate prediction motion vectors; (S1430) Adding the induced candidate prediction motion vectors to a candidate prediction motion vector list; (S1440) Reconstructing a candidate prediction motion vector list by removing identical candidate prediction motion vectors; (S1450) Adjusting the size of the candidate prediction motion vector list by adding and removing candidate prediction motion vectors; (S1460) Determining the final prediction motion vector from the candidate prediction motion vector list
Abstract translation: 目的：提供一种用于诱导预测MV（运动矢量）的方法和使用该方法的装置，以通过形成候选预测MV列表来计算最终预测MV，来降低当诱导预测MV时产生的复杂度。 构成：图像编码/解码装置基于空间候选预测MV信息诱导时间候选预测MV信息（S1420）。 该装置将候选预测MV列表添加到候选预测MV列表中（S1430）。 该装置移除相同的候选预测MV，以改变候选预测MV列表（S1440）。 该装置从候选预测MV列表确定最终预测MV（S1460）。 （附图标记）（AA）开始; （BB）结束; （S1400）引导空间候选预测运动矢量; （S1410）确定两个诱导空间候选预测运动矢量是否彼此不同; （S1420）诱导时间候选预测运动矢量; （S1430）将候选预测运动矢量添加到候选预测运动矢量列表中; （S1440）通过去除相同的候选预测运动矢量来重构候选预测运动矢量列表; （S1450）通过添加和删除候选预测运动矢量来调整候选预测运动矢量列表的大小; （S1460）从候选预测运动矢量列表确定最终预测运动矢量
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公开(公告)号：KR101206111B1
公开(公告)日：2012-11-28
申请号：KR1020110089923
申请日：2011-09-06
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
CPC classification number: H04L65/608 , H04L29/06027 , H04L65/4084 , H04L65/60 , H04L65/607 , H04N21/2353 , H04N21/23805 , H04N21/2401 , H04N21/44004 , H04N21/6125 , H04N21/84 , H04N21/845 , H04N21/8456
Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata may include one or more BaseURL elements. Uniform Resource Locators (URLs) of segments forming media may be generated based on the BaseURL elements. Additionally, a URL of a segment may be generated by mapping a BaseURL element among the BaseURL elements to a sourceURL attribute of the segment. Segments indicated by generated URLs may be identical to each other.
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公开(公告)号：KR1020120120916A
公开(公告)日：2012-11-02
申请号：KR1020120102674
申请日：2012-09-17
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
IPC: H04N21/234
CPC classification number: H04L65/60 , G06Q90/00 , H04L65/4069 , H04L65/4084 , H04L65/80 , H04L67/02 , H04N21/6125
Abstract: PURPOSE: A streaming content supplying apparatus and a method thereof are provided to reproduce media by using segments which are divided by each period. CONSTITUTION: An access engine(510) receives meta data of media. The meta data of the media includes one or more periods. The access engine receives segments of the media based on metadata information. The access engine decodes data of the media. The data of the media is included in the segments. A media engine(520) outputs the media received from the access engine. [Reference numerals] (510) (DASH) access engine; (520) Media engine; (AA) Meta data(MPD); (BB) Media(segment); (CC) MPEG format media + timing; (DD) Media output
Abstract translation: 目的：提供流内容提供装置及其方法，通过使用被每个周期划分的分段来再现媒体。 构成：访问引擎（510）接收媒体的元数据。 媒体的元数据包括一个或多个周期。 访问引擎基于元数据信息接收媒体的段。 访问引擎解码媒体的数据。 媒体的数据包含在片段中。 媒体引擎（520）输出从访问引擎接收的媒体。 （510）（DASH）访问引擎; （520）媒体引擎; （AA）元数据（MPD）; （BB）媒体（段）; （CC）MPEG格式媒体+定时; （DD）媒体输出
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公开(公告)号：KR1020120120915A
公开(公告)日：2012-11-02
申请号：KR1020120102672
申请日：2012-09-17
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
CPC classification number: H04N21/4355 , H04L29/06489
Abstract: PURPOSE: An apparatus and method for providing streaming contents are provided to generate an URL of a segment by mapping any base URL elements with source URL attributes of the segment. CONSTITUTION: Meta data of a media is received(120). The meta data includes one or more base URL(uniform resource locator) elements. A segment of the media is requested by using an URL of the segment(140). The URL is interpreted in relation with the base URL element. The segment is received(150). Media data included in the segment is decoded and rendered. Identical segments are selectively accessed by URLs which are provided by one or more base URL segments. [Reference numerals] (100) Terminal; (110) Server; (120) Meta data; (130) Meta data processing; (140) Segment request; (145) Media parse; (150) Segment transmission; (160) Decoding and rendering
Abstract translation: 目的：提供用于提供流内容的装置和方法，以通过将具有该段的源URL属性的任何基本URL元素映射来生成段的URL。 构成：接收媒体的元数据（120）。 元数据包括一个或多个基本URL（统一资源定位符）元素。 通过使用段（140）的URL请求媒体的片段。 URL与基本URL元素相关。 该段被接收（150）。 包含在片段中的媒体数据被解码和呈现。 通过由一个或多个基本URL段提供的URL来选择性地访问相同的段。 （附图标记）（100）端子; （110）服务器; （120）元数据; （130）元数据处理; （140）段请求; （145）媒体分析; （150）段传输; （160）解码和渲染
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