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公开(公告)号：KR1020140008503A
公开(公告)日：2014-01-21
申请号：KR1020130080797
申请日：2013-07-10
Applicant: 한국전자통신연구원
CPC classification number: H04N19/593 , H04N19/105 , H04N19/176 , H04N19/34
Abstract: Disclosed are a method and an apparatus for encoding/decoding an image. The image decoding method comprises the following steps of: determining an intra prediction mode by eliciting an MPM list about a block to be predicted of an enhancement layer; eliciting a reference sample for prediction; and eliciting a prediction sample of the block to be predicted by performing an intra prediction for the block to be predicted based on the intra prediction mode and the reference sample. [Reference numerals] (AA) Start; (BB) End; (S600) Elicit an MPM list about a block to be predicted and an intra prediction mode; (S610) Elicit a reference sample for prediction about the block to be predicted; (S620) Perform an intra prediction for the block to be predicted
Abstract translation: 公开了一种用于对图像进行编码/解码的方法和装置。 图像解码方法包括以下步骤：通过引出关于要预测的增强层的块的MPM列表来确定帧内预测模式; 引出参考样本进行预测; 并且通过基于帧内预测模式和参考样本执行要预测的块的帧内预测，来引发要预测的块的预测样本。 （附图标记）（AA）开始; （BB）结束; （S600）引出关于要预测的块和帧内预测模式的MPM列表; （S610）引入参考样本以预测要预测的块; （S620）对要预测的块执行帧内预测
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公开(公告)号：KR101349405B1
公开(公告)日：2014-01-10
申请号：KR1020100081381
申请日：2010-08-23
Applicant: 한국전자통신연구원
Abstract: 공간적 스케일러블 비디오 부호화 및 복호화의 압축 효율을 향상시키기 위한 템플릿, 템플릿의 생성 방법, 상기 템플릿을 사용하는 영상 복호화 장치 및 방법이 제공된다. 현재 블록에 대응하는 하위 레이어의 정보를 업샘플링함으로써 현재 블록에 대응하는 정보가 생성되고, 생성된 정보에 기반하여 템플릿이 생성된다. 템플릿은 현재 블록에 대응하는 정보를 갖고 있기 때문에, 이러한 템플릿을 사용하여 움직임 벡터를 계산함으로써 압축 효율이 향상될 수 있다.
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公开(公告)号：KR1020130129338A
公开(公告)日：2013-11-28
申请号：KR1020130125869
申请日：2013-10-22
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 , H04N19/00
Abstract: The image decoding method according to the present invention comprises the steps of decoding a received picture; displaying the decoded picture in a decoded picture buffer (DPB) as a reference picture; farcing a slice header for a picture followed by the decoded picture; and displaying whether the decoded picture is a reference picture or a non-reference picture based on reference picture information included in the slice header. [Reference numerals] (501) Receive an NAL unit including information related to images;(502) Parse the NAL unit and achieve information related to images
Abstract translation: 根据本发明的图像解码方法包括对接收的图像进行解码的步骤; 将解码图像显示在解码图像缓冲器（DPB）中作为参考图像; 为图片跟随解码的图片的切片标题; 以及基于包含在片头中的参考图像信息来显示解码图像是参考图像还是非参考图像。 （附图标记）（501）接收包括与图像相关的信息的NAL单元;（502）解析NAL单元并实现与图像有关的信息
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公开(公告)号：KR1020130118253A
公开(公告)日：2013-10-29
申请号：KR1020130041862
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 video information decoding method, a video decoding method, and a device using the same are provided to express the extraction and scalability information within the hierarchical bitstream. CONSTITUTION: A parsing unit receives a network abstraction layer (NAL) unit including the information related to encoded image (501). The parsing unit parses an NAL unit header of the NAL unit (502). The NAL unit header does not include single bit flag information which indicates whether the NAL unit is a non-reference picture or a reference picture in the whole bitstream while encoding. The NAL unit header comprises the layer distinguishing information for distinguishing a scalable layer in the bitstream supporting the scalable layer. [Reference numerals] (501) Receive a NAL unit including the information related to image; (502) Receive the information related to image by parsing NAL unit
Abstract translation: 目的：提供视频信息解码方法，视频解码方法和使用其的装置，以表达分层比特流内的提取和可扩展性信息。 构成：解析单元接收包括与编码图像相关的信息的网络抽象层（NAL）单元（501）。 解析单元解析NAL单元（502）的NAL单元头部。 NAL单元头不包括单个比特标志信息，该信息指示在编码时NAL单元是整个比特流中的非参考图像还是参考图像。 NAL单元头包括用于区分支持可伸缩层的比特流中的可伸缩层的层区分信息。 （附图标记）（501）接收包括与图像相关的信息的NAL单元; （502）通过解析NAL单元接收与图像有关的信息
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公开(公告)号：KR1020120049435A
公开(公告)日：2012-05-17
申请号：KR1020100110322
申请日：2010-11-08
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/44 , H04N19/503 , H04N19/51
Abstract: PURPOSE: An apparatus and a method for compressing a video through template matching and direction predicting are provided to configure a template by using directionality of a peripheral block. CONSTITUTION: A neighbor block template(820) is composed of one or more decoded blocks within a current frame(840). A prediction block template(830) is generated based on a prediction location. The prediction location is generated by the application of intra prediction to a decoded block.
Abstract translation: 目的：提供通过模板匹配和方向预测压缩视频的装置和方法，以通过使用外围块的方向性来配置模板。 构成：相邻块模板（820）由当前帧（840）内的一个或多个解码块组成。 基于预测位置生成预测块模板（830）。 通过将帧内预测应用于解码块来生成预测位置。
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Patent Agency Ranking
公开(公告)号：KR101144539B1
公开(公告)日：2012-05-14
申请号：KR1020080117505
申请日：2008-11-25
Applicant: 한국전자통신연구원
IPC: H04N19/30
CPC classification number: H04N21/2662 , H04N19/132 , H04N19/15 , H04N19/187 , H04N21/234327
Abstract: An apparatus and method for adapting a scalable video coding (SVC) bitstream is provided. The apparatus may include: a layer selection unit to select at least one quality layer from a plurality of quality layers contained in each of spatial layers of the SVC bitstream; a layer discarding unit to discard the at least one quality layer; and a layer dependency modification unit to modify a quality layer dependency between one or more quality layers remaining among the plurality of quality layers, or a spatial layer dependency between the plurality of spatial layers. Accordingly, it is possible to adapt the SVC bitstream where the entire quality of spatial layers is enhanced.
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公开(公告)号：KR1020120035831A
公开(公告)日：2012-04-16
申请号：KR1020110016377
申请日：2011-02-24
Applicant: 한국전자통신연구원 , 연세대학교 원주산학협력단
IPC: H04N7/24
CPC classification number: H04N19/30 , H04L12/413 , H04L67/02
Abstract: PURPOSE: A random access supporting method for a scalable video coding based streaming service is provided to support a scalable random access function by including an enhancement layer and a base layer in a DASH(Dynamic Adaptive Streaming over HTTP) service. CONSTITUTION: A segment index box includes an RAP(Random Access Point) index and an RAP(Random Access Point) offset. An RAP synchronization box provides synchronization information existed between SVC(Scalable Video Coding) video layer and an RAP by using the segment index box. A scalable random access function is provided by using the information of the RAP synchronization box and the segment index box.
Abstract translation: 目的：提供用于基于可扩展视频编码的流服务的随机接入支持方法，以通过在DASH（基于HTTP的动态自适应流）服务中包括增强层和基础层来支持可扩展随机接入功能。 构成：段索引框包括RAP（随机接入点）索引和RAP（随机接入点）偏移量。 RAP同步框通过使用段索引框提供SVC（可缩放视频编码）视频层和RAP之间的同步信息。 通过使用RAP同步框和段索引框的信息来提供可扩展的随机访问功能。
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公开(公告)号：KR101098739B1
公开(公告)日：2011-12-23
申请号：KR1020080116931
申请日：2008-11-24
Applicant: 한국전자통신연구원
IPC: H04N19/105 , H04N19/117 , H04N19/51
CPC classification number: H04N19/573 , H04N19/105 , H04N19/117 , H04N19/176 , H04N19/61
Abstract: 비디오신호의부호화/복호화장치및 방법을개시한다. 비디오신호의부호화장치는참조영상을저장하는참조영상저장부; 템플릿을이용하여입력영상과상기참조영상간의움직임을추정하여움직임추정정보를생성하는템플릿움직임추정부; 상기움직임추정정보와상기참조영상을이용하여예측영상을생성하고상기예측영상에서템플릿을이용한필터계수를계산하고상기필터계수를이용하여상기예측영상을필터링하는적응적움직임보상부; 상기입력영상과상기필터링한예측영상과의차인차분영상을정수변환및 양자화하는변환및 양자화부; 및, 상기양자화한차분영상을엔트로피부호화하여생성한영상스트림을출력하는엔트로피부호화부를포함한다.
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公开(公告)号：KR100989062B1
公开(公告)日：2010-10-25
申请号：KR1020040107962
申请日：2004-12-17
Applicant: 한국전자통신연구원
IPC: H04N21/8352
CPC classification number: H04N21/235 , H04N21/435 , H04N21/8126 , H04N21/8133 , H04N21/84 , H04N21/858
Abstract: 본 발명은 패키지 식별 방법 및 위치 결정 방법에 관한 것으로, 더욱 상세하게는 메인AV에 연결된 종속 패키지 또는 메인AV에 연결되지 않은 독립 패키지에 대한 식별 방법과 위치 결정 방법에 관한 것이다.
본 발명은 패키지의 식별방법으로서, 상기 패키지가 메인 AV(Audio/Video)에 연결되어 종속적인 경우, 상기 패키지의 식별자로서 CRID를 사용하고, 상기 패키지가 메인 AV에 연결되지 않아 독립적인 경우에도, 상기 패키지의 식별자로서 CRID를 사용한다.
본 발명은 TVA-1 스키마를 이용하여 기술된 메인AV에 연결된 종속 패키지 또는 메인AV에 연결되지 않은 독립 패키지 두 가지 모든 경우에 대해, 개선된 패키지 식별 및 위치 결정 메커니즘을 제시함으로써 TVA-2 서비스 시나리오들을 잘 지원할 수 있는 효과를 제공한다.
패키지, 식별, 위치결정, CRID-
公开(公告)号：KR1020100093703A
公开(公告)日：2010-08-26
申请号：KR1020090012759
申请日：2009-02-17
Applicant: 한국전자통신연구원 , 서울대학교산학협력단
IPC: H04N7/24
CPC classification number: H04N19/395 , H04N19/105 , H04N19/51 , H04N19/577 , H04N19/587
Abstract: PURPOSE: An encoder and a decoder for distributing an image through symmetrical motion prediction and a channel division and a method thereof are provided to minimize distortion of side information and remove residual part existing in a channel code decoding process, thereby reducing calculation amount. CONSTITUTION: A key frame encoder(110) encodes the key frame of a image. As a response of the encoded image, a buffer receives a first channel image information of large distortion larger than preset value. A first channel image is divided from a side image information applying interpolation to the key frame. A quantization unit(130) quantizes a Wyner-Ziv frame through the first channel image information. A Wyner-Ziv frame encoder(140) encodes the quantized Wyner-Ziv frame.
Abstract translation: 目的：提供一种用于通过对称运动预测和信道划分来分配图像的编码器和解码器及其方法，以最小化侧信息的失真并消除存在于信道码解码过程中的残留部分，从而减少计算量。 构成：关键帧编码器（110）对图像的关键帧进行编码。 作为编码图像的响应，缓冲器接收大于预设值的大失真的第一通道图像信息。 将第一频道图像从应用插值的侧边图像信息划分到关键帧。 量化单元（130）通过第一通道图像信息量化Wyner-Ziv帧。 Wyner-Ziv帧编码器（140）对量化的Wyner-Ziv帧进行编码。
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