公开(公告)号：US09693055B2

公开(公告)日：2017-06-27

申请号：US14141685

申请日：2013-12-27

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  INDUSTRY-ACADEMIC COOPERATION GROUP OF SEJONG UNIVERSITY

发明人： Jung Won Kang ,  Ha Hyun Lee ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Jong Ki Han ,  Jae Yung Lee

IPC分类号： H04N19/597 ,  H04N7/26 ,  H04N19/577 ,  H04N19/51 ,  H04N19/70 ,  H04N19/105 ,  H04N19/177

CPC分类号： H04N19/597 ,  H04N19/105 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/177 ,  H04N19/184 ,  H04N19/31 ,  H04N19/70

摘要： The present invention is related to a method for moving the position of a base view from an arbitrary GOP (Group Of Pictures) start position to implement an efficient encoding structure in multi-view video encoding. The existing multi-view video encoding method exhibits low encoding efficiency when correlation between the base view and a dependent view is low, since the base view is assumed to be fixed. Moreover, in case the view in a live broadcasting program desired by a producer changes from the base view to another, the user has to consume more bit streams and decoder complexity than those consumed when decoding is performed with respect to the base view. Therefore, to alleviate the drawbacks of the existing multi-view video encoding method, the present invention provides a method for designing syntax elements by which the base view can be moved, thereby supporting an efficient encoding structure.

公开(公告)号：US09596466B2

公开(公告)日：2017-03-14

申请号：US14354819

申请日：2012-12-18

申请人： Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

发明人： Hui Yong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim ,  Sang Min Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC分类号： H04N19/00 ,  H04N19/503 ,  H04N19/105 ,  H04N19/176 ,  H04N19/136

CPC分类号： H04N19/105 ,  H04N19/103 ,  H04N19/124 ,  H04N19/136 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/503 ,  H04N19/513 ,  H04N19/52

摘要： The present invention relates to a method and apparatus for setting a reference picture index of a temporal merging candidate. An inter-picture prediction method using a temporal merging candidate can include the steps of: determining a reference picture index for a current block; and inducing a temporal merging candidate block of the current block and calculating a temporal merging candidate from the temporal merging candidate block, wherein the reference picture index of the temporal merging candidate can be calculated regardless of whether a block other than the current block is decoded. Accordingly, a video processing speed can be increased and video processing complexity can be reduced.

摘要翻译： 本发明涉及用于设定时间合并候选的参考图像索引的方法和装置。 使用时间合并候选的图像间预测方法可以包括以下步骤：确定当前块的参考图像索引; 以及诱导所述当前块的时间合并候选块并且从所述时间合并候选块计算时间合并候选，其中可以计算所述时间合并候选的参考图像索引，而不管所述当前块之外的块是否被解码。 因此，可以提高视频处理速度，并且可以减少视频处理的复杂度。

公开(公告)号：US09516323B2

公开(公告)日：2016-12-06

申请号：US15137189

申请日：2016-04-25

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Sung Chang Lim ,  Hui Yong Kim ,  Se Yoon Jeong ,  Jong Ho Kim ,  Ha Hyun Lee ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC分类号： H04N19/124 ,  H04N19/186 ,  H04N19/463 ,  H04N19/157 ,  H04N19/122 ,  H04N19/46

CPC分类号： H04N19/124 ,  H04N19/105 ,  H04N19/117 ,  H04N19/122 ,  H04N19/13 ,  H04N19/15 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/43 ,  H04N19/46 ,  H04N19/463 ,  H04N19/61

摘要： Disclosed are a method for determining a color difference component quantization parameter and a device using the method. Method for decoding an image can comprise the steps of: decoding a color difference component quantization parameter offset on the basis of size information of a transform unit; and calculating a color difference component quantization parameter index on the basis of the decoded color difference component quantization parameter offset. Therefore, the present invention enables effective quantization by applying different color difference component quantization parameters according to the size of the transform unit when executing the quantization.

公开(公告)号：US09510001B2

公开(公告)日：2016-11-29

申请号：US14326232

申请日：2014-07-08

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Jin Ho Lee ,  Jung Won Kang ,  Ha Hyun Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/117 ,  H04N19/176 ,  H04N19/30 ,  H04N19/14 ,  H04N19/80

CPC分类号： H04N19/117 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/14 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/30 ,  H04N19/51 ,  H04N19/61 ,  H04N19/80

摘要： A video decoding method according to an embodiment of the present invention may include determining a type of a filter to be applied to a first-layer picture which a second-layer picture as a decoding target refers to; determining a filtering target of the first-layer picture to which the filter is applied; filtering the filtering target based on the type of the filter; and adding the filtered first-layer picture to a second-layer reference picture list. Accordingly, the video decoding method and an apparatus using the same may reduce a prediction error in an upper layer and enhance encoding efficiency.

摘要翻译： 根据本发明的实施例的视频解码方法可以包括确定要应用于作为解码目标的第二层图片参考的第一层图像的滤波器的类型; 确定应用所述滤波器的所述第一层图像的滤波目标; 基于过滤器的类型对过滤目标进行过滤; 并将滤波的第一层图像添加到第二层参考图片列表。 因此，视频解码方法及其使用装置可以减少上层的预测误差，提高编码效率。

公开(公告)号：US09270990B2

公开(公告)日：2016-02-23

申请号：US14347709

申请日：2012-09-27

申请人： Electronics and Telecommunications Research Institute

发明人： Jin Ho Lee ,  Hui Yong Kim ,  Sung Chang Lim ,  Jin Soo Choi ,  Jin Woong Kim

IPC分类号： H04N19/44 ,  H04N19/196 ,  H04N19/82 ,  H04N19/70 ,  H04N19/61

CPC分类号： H04N19/196 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

摘要： Provided are a method and apparatus for encoding and decoding images based on constrained offset compensation and a loop filter. The image decoding apparatus: receives, from an encoder, a first indicator indicating whether a sequence, a picture, a frame, a slice, a coding unit (CU), a prediction unit (PU), and/or a transform unit (TU) supports constrained offset compensation; receives, from the encoder, a second indicator indicating whether constrained sample adaptive offset (SAO) compensation or an adaptive loop filter (ALF) is applied; receives a parameter from the encoder; and applies the SAO compensation or the ALF to pixels of a restored image on the basis of the second indicator and the parameter.

公开(公告)号：US20150189289A1

公开(公告)日：2015-07-02

申请号：US14412316

申请日：2013-07-02

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

发明人： Hui Yong Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim

IPC分类号： H04N19/176 ,  H04N19/167 ,  H04N19/196 ,  H04N19/12

CPC分类号： H04N19/167 ,  H04N19/126 ,  H04N19/18 ,  H04N19/46

摘要： Disclosed are a method and an apparatus for coding/decoding an image. The method for decoding the image comprises the steps of: deriving a scale factor of a current block, depending on whether the current block is a conversion skip block; and scaling the current block on the basis of the scale factor, wherein the scale factor of the current block is derived on the basis of the position of a conversion coefficient inside the current block, and wherein the conversion skip block is the current block to which conversion is not applied and is specified on the basis of information indicating whether to apply reconversion to the current block.

摘要翻译： 公开了一种用于对图像进行编码/解码的方法和装置。 用于解码图像的方法包括以下步骤：取决于当前块是转换跳过块，导出当前块的比例因子; 并且根据比例因子缩放当前块，其中当前块的比例因子基于当前块内的转换系数的位置导出，并且其中转换跳跃块是当前块，当前块 转换不被应用，并且基于指示是否对当前块应用重新转换的信息来指定。

公开(公告)号：US09030485B2

公开(公告)日：2015-05-12

申请号：US13658039

申请日：2012-10-23

申请人： Electronics and Telecommunications Research Institute ,  National University of Sciences & Technology

发明人： Yong Ju Cho ,  Yong Ju Lee ,  Seung Kwon Beack ,  Ji Hun Cha ,  Seong Yong Lim ,  Myung Seok Ki ,  Joo Myoung Seok ,  Jin Woong Kim ,  Muhammad Murtaza Khan ,  Rehan Hafiz ,  Haris Anis ,  Mutahir Latif ,  Ashar Rasul ,  Arshad Ali

IPC分类号： G09G5/00 ,  G09G5/02 ,  G09G5/36 ,  H04N5/46 ,  H04N1/46 ,  H04N1/40 ,  G03F3/08 ,  G06K9/00 ,  G06K9/40 ,  G06K9/36 ,  H04N9/31 ,  G06F3/14

CPC分类号： H04N9/3147 ,  G06F3/1446 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0693 ,  H04N9/3182 ,  H04N9/3194

摘要： An apparatus and a method for correcting colors of an image projection device are provided. The method includes: acquiring a photographed image by photographing a sample image projected on projection surface; generating input-output color information for n regions, based on color values of a block in the sample image and corresponding color values of the block in the photographed image; selecting one of the n regions of photographed images as a reference region; generating look-up tables (LUTs) for non-reference regions, based on the reference region and the input and output color information; and correcting colors of input images to be projected by the image projection device using the look-up tables, thereby minimizing color difference of the input images on the projection surface for both intra and inter projection device color correction while simplifying the correction procedure.

摘要翻译： 提供了一种用于校正图像投影装置的颜色的装置和方法。 该方法包括：通过拍摄投影在投影面上的样本图像来获取拍摄图像; 基于样本图像中的块的颜色值和所拍摄图像中的块的对应颜色值，生成n个区域的输入输出颜色信息; 选择拍摄图像的n个区域中的一个作为参考区域; 基于参考区域和输入和输出颜色信息产生用于非参考区域的查找表（LUT）; 并且通过使用查找表来校正由图像投影设备投影的输入图像的颜色，从而使简化校正过程的同时投影设备颜色校正的投影面上的输入图像的色差最小化。

公开(公告)号：US20150078446A1

公开(公告)日：2015-03-19

申请号：US14387454

申请日：2013-03-25

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Dong San Jun ,  Jung Won Kang ,  Ha Hyun Lee ,  Youn Hee Kim ,  Soon Heung Jung ,  Jin Soo Choi ,  Jin Woong Kim

IPC分类号： H04N19/503 ,  H04N19/593

CPC分类号： H04N19/503 ,  H04N19/30 ,  H04N19/33 ,  H04N19/59 ,  H04N19/593

摘要： The present invention relates to a method and an apparatus for inter-layer intra prediction. The method for inter-layer intra prediction comprises: a step of determining a reference layer for inter-layer intra prediction; a step of generating intra prediction information from the reference layer; and a step of performing inter-layer prediction on the current block based on the intra prediction information. In cases where the same location block of the reference block corresponding to the prediction object frame on a temporal axis is inter predicted in the reference layer, intra prediction information is generated based on the intra predicted same location block from among the previous and post frames of the reference frame.

摘要翻译： 本发明涉及一种层间帧内预测的方法和装置。 层间帧内预测方法包括：确定用于层间帧内预测的参考层的步骤; 从参考层生成帧内预测信息的步骤; 以及基于帧内预测信息对当前块执行层间预测的步骤。 在参考层中对与时间轴上的预测对象帧相对应的参考块的相同位置块进行帧间预测的情况下，基于帧内预测相同位置块生成帧内预测信息， 参考框架。

公开(公告)号：US20150078442A1

公开(公告)日：2015-03-19

申请号：US14382251

申请日：2013-04-16

申请人： Electronics and Telecommunications Research Institute

发明人： Sung Chang Lim ,  Hui Yong Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC分类号： H04N19/126 ,  H04N19/60 ,  H04N19/44

CPC分类号： H04N19/126 ,  H04N19/129 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/463 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

摘要： A method and a device for encoding/decoding an image are disclosed. The method for decoding an image comprises the steps of: decoding information on a quantization matrix; and restoring the quantization matrix on the basis of the information on the quantization matrix, wherein the information on the quantization matrix includes information indicating a DC value of the quantization matrix and/or information indicating differential values of quantization matrix coefficients.

摘要翻译： 公开了一种用于对图像进行编码/解码的方法和装置。 解码图像的方法包括以下步骤：解码量化矩阵上的信息; 并且根据关于量化矩阵的信息来恢复量化矩阵，其中关于量化矩阵的信息包括指示量化矩阵的DC值的信息和/或指示量化矩阵系数的差分值的信息。

公开(公告)号：US20150063453A1

公开(公告)日：2015-03-05

申请号：US14391061

申请日：2013-04-16

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Jung Won Kang ,  Ha Hyun Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC分类号： H04N19/52 ,  H04N19/91 ,  H04N19/80 ,  H04N19/13 ,  H04N19/61 ,  H04N19/593 ,  H04N19/124

摘要： The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.

摘要翻译： 图像信息解码方法技术领域本发明涉及图像信息解码方法。 解码方法包括接收包括包括与编码图像有关的信息的网络抽象层（NAL）单元以及解析NAL单元的NAL单元头部的比特流。 NAL单元头部可以不包括在编码期间表示整个比特流中图像是非参考图像还是参考图像的1比特标志信息。