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91.
公开(公告)号:KR1020160110589A
公开(公告)日:2016-09-22
申请号:KR1020150032439
申请日:2015-03-09
Applicant: 한국전자통신연구원
IPC: H04N19/103 , H04N19/147 , H04N19/146 , H04N19/50
CPC classification number: H04N19/103 , H04N19/147 , H04N19/50
Abstract: 본발명은본 발명은영상부호화및 복호화기술에관한것으로, 본발명의일 실시예에따른부호화모드결정방법은, 초기화단계를통해현재부호화모드로부호화하는경우의율-왜곡비용의예측값 및비트량예측값을계산하는단계; 상기계산된율-왜곡비용의예측값과미리설정된최적의율-왜곡비용값을비교하고, 상기계산된비트량예측값과미리설정된최적의비트량을비교하여, 상기부호화모드에대한부호화연산을생략할지여부를판단하는단계; 결정된최소율-왜곡비용값을이용하여현재부호화블록에대한부호화모드를결정하는단계; 및부호화를수행한후 부호화모드의순서를업데이트하는단계;를포함할수 있다. 본발명의일 실시예에따르면, HEVC 고속부호화모드결정을위한적응적부호화모드순서정렬방법및 장치를제공할수 있다.
Abstract translation: 本发明涉及视频编码和解码技术。 根据本发明的实施例的用于确定编码模式的方法可以包括以下步骤:当通过初始化在当前编码模式中执行编码时,计算速率失真成本的预测值和比特数的预测值 步; 通过将计算出的速率失真成本的预测值与速率失真成本的预设最佳值进行比较来确定是否跳过用于编码模式的编码操作,并且通过将计算的比特数的预测值与 最佳位数; 通过使用确定的速率失真成本的最小值来确定当前编码块的编码模式; 并且在编码之后更新编码模式的序列。 根据本发明的实施例,所提供的可以是用于确定高效率视频编码(HEVC)的快速编码模式的自适应编码模式排序方法和装置。
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公开(公告)号:KR1020160087451A
公开(公告)日:2016-07-22
申请号:KR1020150006124
申请日:2015-01-13
Applicant: 한국전자통신연구원
IPC: H04N19/146 , H04N19/436 , H04N19/50 , H04N19/147 , H04N19/177
CPC classification number: H04N19/147 , H04N19/177 , H04N19/436 , H04N19/50
Abstract: 본발명은비디오병렬부호화기의율제어(rate control)를위한방법및 장치에관한것으로, 본발명의일 실시예에따른병렬부호화기를위안율 제어방법은, 병렬로처리할프레임들에비트를할당하고, 부호화파라미터를결정하는단계; 상기결정된부호화파라미터로병렬로부호화를수행하는단계; 및실제발생비트량을업데이트하는단계;를포함할수 있다. 본발명의일 실시예에따르면, 병렬로처리할프레임들의비트할당혹은부호화파라미터를미리결정함으로써병렬부호화기에쉽게적용될수 있다.
Abstract translation: 本发明涉及一种用于视频并行编码器的速率控制的方法和装置。 根据本发明的一个实施例,该方法包括:将比特分配给并行处理的帧并确定编码参数的步骤; 通过所确定的编码参数并行地执行编码处理的步骤; 以及更新实际位产生量的步骤。 根据本发明的实施例,该方法预先确定要并行处理的帧的比特分配或编码参数,使得这些帧容易地应用于并行编码器。
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公开(公告)号:KR1020150117854A
公开(公告)日:2015-10-21
申请号:KR1020140043492
申请日:2014-04-11
Applicant: 한국전자통신연구원
IPC: H04N19/117
CPC classification number: H04N19/117 , H04N19/172 , H04N19/61 , H04N19/82
Abstract: 본발명에따른영상의부호화방법은동시에처리할수 있는프레임의개수를파악하는단계와; 각프레임에대하여최적의부호화모드로부호화를수행하면서발생하는왜곡을파악하는단계와; 상기영상의왜곡기준, 현재병렬화처리이전의부호화처리를완료한프레임의 SAO 적용통계기준, 현재병렬화처리이전의부호화처리를완료한 GOP 깊이의프레임의 SAO 적용통계기준중 어느하나를이용하여 SAO 필터적용여부를결정하는단계와; 결정된 SAO 필터적용여부에따라적응적으로 SAO 적용하는단계를포함할수 있다. 이로써, 영상을프레임단위로병렬처리하는경우, SAO를병렬적으로적용할수 있는방법및 이를이용하는장치가제공된다.
Abstract translation: 根据本发明的用于编码图像的方法包括以下步骤:检查可以同时处理的帧数; 在相对于每个帧的最优编码模式中检查在执行编码操作期间产生的失真; 通过使用图像的失真准则中的一个来确定SAO滤波器是否被应用,当前并行化处理之前的编码处理的帧的SAO应用统计准则和该帧的SAO应用统计标准与 在当前并行化处理之前的编码处理已经完成的GOP深度; 并根据是否应用确定的SAO滤波器自适应地应用SAO。 因此,提供了在并行地由帧单元处理图像的情况下能够并行地应用SAO的方法以及使用该SAO的装置。
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公开(公告)号:KR1020140125463A
公开(公告)日:2014-10-29
申请号:KR1020130041420
申请日:2013-04-16
Applicant: 한국전자통신연구원 , 선문대학교 산학협력단
IPC: H04N19/50
CPC classification number: H04N19/593 , H04N19/103 , H04N19/176
Abstract: 본 발명은 현재 블록와 상관성을 갖는 복수의 주변 블록의 코딩 유닛 모드를 판단하는 단계와, 상기 복수의 주변 블록의 상기 코딩 유닛 모드가 스킵 모드인지 여부를 판단하는 단계와 상기 복수의 주변 블록의 상기 코딩 유닛 모드가 스킵 모드이면 상기 현재 블록의 상기 코딩 유닛 모드를 스킵 모드로 판단하고, 상기 복수의 주변 블록의 상기 코딩 유닛 모드가 스킵 모드가 아니면 상기 현재 블록의 상기 코딩 유닛 모드에 대한 머지 모드를 판단하는 단계를 포함할 수 있다. 이에 의해, 부호화하려는 블록의 예측 유닛 모드를 신속하게 결정할 수 있는 영상의 부호화 방법 및 부호화 장치가 제공된다.
Abstract translation: 本发明提供一种用于对视频进行编码的方法和装置。 用于编码视频的方法包括以下步骤:确定与当前块具有相关性的多个外围块的编码单元模式; 确定外围块的编码单元模式是否是跳过模式; 以及当外围块的编码单元模式为跳过模式时,将当前块的编码单元模式确定为跳过模式,并且当外围块的编码单元模式为当前块的编码单元模式时确定合并模式 不是跳过模式,从而快速确定要编码的块的预测单元模式。
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公开(公告)号:KR1020140038492A
公开(公告)日:2014-03-28
申请号:KR1020140025353
申请日:2014-03-04
Applicant: 한국전자통신연구원
IPC: H04N21/234
CPC classification number: H04L65/60 , H04L65/4084 , H04L67/2804 , H04N21/23439 , H04N21/2393 , H04N21/25825 , H04N21/26258 , H04N21/64322 , H04N21/6437 , H04N21/6582 , H04N21/8456 , H04N21/234
Abstract: Disclosed are a device and a method for providing an adaptive HTTP streaming service using metadata on content. The metadata of the content can be transmitted to a terminal by being efficiently divided to correspond to the purpose of use of the terminal by using general media information or unique media information. A group includes one or more representations of the content. The metadata includes a group element, and the group element provides a summary on the properties of the representations included in the group. [Reference numerals] (100) Server; (110) Terminal; (610) Metadata; (620) Metadata processing; (630) Segment request; (640) Media parsing; (650) Segment transmission; (660) Decoding and rendering
Abstract translation: 公开了一种使用内容上的元数据提供自适应HTTP流服务的设备和方法。 可以通过使用一般的媒体信息或独特的媒体信息,有效地将终端的元数据发送到终端,以对应于终端的使用目的。 组包括内容的一个或多个表示。 元数据包括组元素,组元素提供关于组中包含的表示的属性的摘要。 (附图标记)(100)服务器; (110)码头; (610)元数据; (620)元数据处理; (630)段请求; (640)媒体解析; (650)段传输; (660)解码和渲染
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公开(公告)号:KR101180540B1
公开(公告)日:2012-09-06
申请号:KR1020110030790
申请日:2011-04-04
Applicant: 한국전자통신연구원 , 연세대학교 산학협력단
CPC classification number: H04L65/60 , H04L1/0042 , H04L29/06027 , H04L47/19 , H04L47/28 , H04L65/604 , H04L65/605 , H04L65/607 , H04L65/80 , H04L69/163 , H04N21/4302
Abstract: Provided is an apparatus and method for transmitting and receiving a streaming service. An inter-arrival jitter may correspond to a delay variation in arrival time between TCP packets arriving at an apparatus for receiving the streaming service. The apparatus for receiving the streaming service may determine a de-jitter buffering time to absorb a network jitter before TS packets in a TCP packet is input to a T-STD buffer model. Based on the de-jitter buffering time, an initial playout delay lime at the apparatus for receiving the streaming service may be determined.
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公开(公告)号:KR1020120084275A
公开(公告)日:2012-07-27
申请号:KR1020120006374
申请日:2012-01-19
Applicant: 한국전자통신연구원
IPC: H04N21/236
CPC classification number: H04L65/608 , H04N21/236 , H04N21/2381 , H04N21/4622 , H04N21/6125 , H04N21/643 , H04N21/8451
Abstract: PURPOSE: A method of transporting media contents over single port or multiple port and an apparatus for performing the same are provided to transport media contents regardless of the number of servers and the existence and nonexistence of additional information. CONSTITUTION: A server generates substream ID including assignment information of the port of a client in order to transmit contents component including at least one among video stream, audio stream, and signaling stream to a client(S510). The server transmits the substream ID to a client(S520). The server transmits the contents component to the client through one or more ports of the client(S530).
Abstract translation: 目的:无论服务器数量多少以及附加信息的存在和不存在,都会提供一种通过单端口或多端口传输媒体内容的方法及其执行装置,以传送媒体内容。 构成:服务器产生包括客户端口的分配信息的子流ID,以便将包括视频流,音频流和信令流中的至少一个的内容分量发送到客户端(S510)。 服务器将子流ID发送给客户端(S520)。 服务器通过客户端的一个或多个端口将内容组件发送给客户端(S530)。
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公开(公告)号:KR1020120076294A
公开(公告)日:2012-07-09
申请号:KR1020110088325
申请日:2011-09-01
Applicant: 한국전자통신연구원
CPC classification number: H04L65/60 , H04L65/4084 , H04L67/2804 , H04N21/23439 , H04N21/2393 , H04N21/25825 , H04N21/26258 , H04N21/64322 , H04N21/6437 , H04N21/6582 , H04N21/8456
Abstract: PURPOSE: An apparatus for providing streaming contents and a method thereof are provided to efficiently divide media information in active HTTP streaming by using general media information and specific media information. CONSTITUTION: A terminal(110) receives meta data of a media or the meta data about a specific cycle of the media from a server(100)(610). The terminal processes the meta data about the specific cycle(620). The terminal extracts information provided through the meta data. The terminal requests a server of segments(630). The server extracts a data part suitable for the requested segments if there is a need to parse a media(640). The server transmits the segments suitable for each request from the terminal to the terminal(650). The terminal plays the media by decoding and rendering data in the media included within the segments(660).
Abstract translation: 目的:提供一种用于提供流内容的装置及其方法,用于通过使用通用媒体信息和特定媒体信息来有效地划分主动HTTP流中的媒体信息。 构成:终端(110)从服务器(100)(610)接收媒体的元数据或关于媒体的特定周期的元数据。 终端处理关于特定周期的元数据(620)。 终端提取通过元数据提供的信息。 终端请求段的服务器(630)。 如果需要解析介质,则服务器提取适合于所请求段的数据部分(640)。 服务器将适合于每个请求的段从终端发送到终端(650)。 终端通过在包括在段(660)内的媒体中解码和呈现数据来播放媒体。
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公开(公告)号:KR1020120035175A
公开(公告)日:2012-04-13
申请号:KR1020120030000
申请日:2012-03-23
Applicant: 한국전자통신연구원
IPC: H04N21/234 , H04L29/06
CPC classification number: H04L65/60 , H04L65/4084 , H04L67/2804 , H04N21/23439 , H04N21/2393 , H04N21/25825 , H04N21/26258 , H04N21/64322 , H04N21/6437 , H04N21/6582 , H04N21/8456
Abstract: PURPOSE: A device for providing streaming content and a method thereof are provided to efficiently divide and transmit MPD(Media Presentation Description) in active http streaming by using general MPD and specific MPD, thereby efficiently transmitting the MPD by the usage purpose of a terminal. CONSTITUTION: A terminal(110) receives meta data of a media with one or more cycles from a server(100). The terminal approaches to segments of the media based on the information which the meta data provides. The terminal performs decoding and rendering of the media data of the segments. Each cycle includes one or more groups. Each group includes one or more representations of the media.
Abstract translation: 目的:提供一种用于提供流式传输内容的设备及其方法,以通过使用通用MPD和特定MPD来有效地划分和发送主动http流中的MPD(媒体呈现描述),从而通过终端的使用目的有效地发送MPD。 构成:终端(110)从服务器(100)接收具有一个或多个周期的媒体的元数据。 终端根据元数据提供的信息接近媒体的片段。 终端执行段的媒体数据的解码和呈现。 每个周期包括一个或多个组。 每个组包括媒体的一个或多个表示。
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公开(公告)号:KR1020110071468A
公开(公告)日:2011-06-29
申请号:KR1020090128052
申请日:2009-12-21
Applicant: 한국전자통신연구원
IPC: G06Q50/10 , G06F15/16 , H04N21/2343
CPC classification number: H04L65/4084 , H04L65/608
Abstract: PURPOSE: A method for updating content information in a streaming server group is provided to enable a client to use a service without checking the streaming service group through a web server. CONSTITUTION: A web server adds the information about the delivered content and transmits the added information to the server group(306). A streaming server 2 transfers the updated information to a client(307). The client confirms that the streaming server n provides the same HD-grade content service about the same content(308). The client closes the service with the streaming server 2. The client is connected to the streaming server n. The client receives the HD-grade content from the streaming server n(310).
Abstract translation: 目的:提供一种用于更新流服务器组中的内容信息的方法,以使客户端能够使用服务,而不通过Web服务器检查流服务组。 规定:Web服务器添加有关所传送内容的信息,并将添加的信息发送到服务器组(306)。 流服务器2将更新的信息传送到客户端(307)。 客户端确认流服务器n提供与相同内容相同的HD级内容服务(308)。 客户端使用流服务器关闭服务器2.客户端连接到流服务器n。 客户端从流服务器n接收HD级内容(310)。
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