公开(公告)号：US08451890B2

公开(公告)日：2013-05-28

申请号：US12792899

申请日：2010-06-03

申请人： Chong Soon Lim ,  Takahiro Nishi ,  Youji Shibahara

发明人： Chong Soon Lim ,  Takahiro Nishi ,  Youji Shibahara

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/597 ,  H04N13/161 ,  H04N13/178 ,  H04N19/112 ,  H04N19/124 ,  H04N19/15 ,  H04N19/152 ,  H04N19/172 ,  H04N19/70

摘要： A method of decoding includes decoding a coded stream obtained by coding first and second groups for each access unit including a picture of the first group and a corresponding picture of the second group, wherein the first and second groups are captured at different view points. The method includes determining whether the picture of the first group is synchronized with the picture of the second group, within the access unit, and decoding the picture of the first group using a generated predictive picture of the first group. The method also includes decoding the picture of the second group, using one of (i) a predictive picture generated from the second group and (ii) the predictive picture generated from the first group.

摘要翻译： 一种解码方法包括对包括第一组的图像和第二组的相应图像的每个存取单元对第一组和第二组进行编码而获得的编码流进行解码，其中第一组和第二组在不同的视点被捕获。 所述方法包括：确定所述第一组的图像是否与所述第二组的图像在所述存取单元内同步，以及使用所生成的第一组的预测图像来解码所述第一组的图像。 该方法还包括使用（i）从第二组生成的预测图像和（ii）从第一组产生的预测图像中的一个解码第二组的图像。

公开(公告)号：US20120251015A1

公开(公告)日：2012-10-04

申请号：US13503782

申请日：2010-10-29

申请人： Chong Soon Lim ,  Min Li ,  Hai Wei Sun ,  Youji Shibahara ,  Takahiro Nishi

发明人： Chong Soon Lim ,  Min Li ,  Hai Wei Sun ,  Youji Shibahara ,  Takahiro Nishi

IPC分类号： G06K9/36

CPC分类号： H04N19/126 ,  H04N19/172 ,  H04N19/196 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61

摘要： A decoding method includes: obtaining a plurality of quantization parameter sets from a header of a coded stream (S400); parsing an identifier from a header of a coded picture included in the coded stream (S402); selecting at least one quantization parameter set from among the plurality of quantization parameter sets, based on the parsed identifier (S404); determining whether a flag parsed from the header of the coded picture has a predetermined value (S408); generating a new quantization matrix from another quantization matrix when the flag has the predetermined value (S410); decoding the coded picture by inversely quantizing the coded picture using the generated new quantization matrix (S412); and decoding the coded picture by inversely quantizing the coded picture using a quantization matrix included in the selected quantization parameter set when the flag does not have the predetermined value (S414).

摘要翻译： 解码方法包括：从编码流的头部获取多个量化参数集（S400）; 从编码流中包含的编码图像的标题中解析标识符（S402）; 基于所解析的标识符，从所述多个量化参数集中选择至少一个量化参数集（S404）; 确定从编码图像的标题解析的标志是否具有预定值（S408）; 当标志具有预定值时，从另一个量化矩阵生成新的量化矩阵（S410）; 通过使用所生成的新量化矩阵对编码图像进行逆量化来解码编码图像（S412）; 以及当所述标志不具有所述预定值时，使用包括在所选择的量化参数集中的量化矩阵对所述编码图像进行逆量化，对所述编码图像进行解码（S414）。

公开(公告)号：US20120163457A1

公开(公告)日：2012-06-28

申请号：US13337416

申请日：2011-12-27

申请人： Viktor WAHADANIAH ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Xuan Jing ,  Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio

发明人： Viktor WAHADANIAH ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Xuan Jing ,  Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio

IPC分类号： H04N7/32

CPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/46 ,  H04N19/521 ,  H04N19/593

摘要： A moving picture decoding method according to the present invention includes: performing intra prediction on a target block to calculate values of predicted samples of the target block; and calculating reconstructed samples of the target block by adding difference data and the values of the predicted samples of the target block, wherein in the performing of intra prediction, validity of each of reference samples that are located one of immediately above and immediately to the left of the target block is determined, and when the reference samples include both a valid reference sample and an invalid reference sample, the intra prediction is performed using the valid reference sample, and an intra-predicted reference sample is determined as a valid reference sample, and an inter-predicted reference sample is determined as an invalid reference sample.

摘要翻译： 根据本发明的运动图像解码方法包括：对目标块执行帧内预测以计算目标块的预测样本的值; 以及通过添加差分数据和所述目标块的预测样本的值来计算所述目标块的重建样本，其中在执行帧内预测时，每个参考样本的位于上方之一并且立即在左侧的有效性 确定目标块的参考样本，并且当参考样本包括有效参考样本和无效参考样本时，使用有效参考样本执行帧内预测，​​并且将预测内参考样本确定为有效参考样本， 并且将预测间参考样本确定为无效参考样本。

公开(公告)号：US20110096835A1

公开(公告)日：2011-04-28

申请号：US12993916

申请日：2010-03-26

申请人： Chong Soon Lim ,  Takahiro Nishi

发明人： Chong Soon Lim ,  Takahiro Nishi

IPC分类号： H04N7/26

CPC分类号： H04N19/174 ,  H04N19/114 ,  H04N19/30 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70

摘要： Provided is a coding method that allows reduction of a code amount necessary for coding reference indexes and improvement in the coding efficiency. The coding method according to the present invention is a method of coding a random accessible picture using inter-view reference, and includes: writing, into a slice header of the random accessible picture, a reference list modification syntax for modifying a reference picture list so that an inter-view reference picture is placed at the beginning of the reference picture list (S103); placing the inter-view reference picture at the beginning of the reference picture list (S104); and coding a current slice included in the random accessible picture, using the reference picture list (S105).

摘要翻译： 提供了一种编码方法，其允许减少编码参考索引所需的代码量并提高编码效率。 根据本发明的编码方法是使用视角间参考对随机可访问图像进行编码的方法，并且包括：将随机可访问图像的切片标题写入用于修改参考图像列表的参考列表修改语法 在参考图像列表的开始处放置视图间参考图片（S103）; 将参考图像放置在参考图像列表的开始处（S104）; 以及使用参考图片列表对包括在随机可访问图片中的当前片段进行编码（S105）。

公开(公告)号：US20080192824A1

公开(公告)日：2008-08-14

申请号：US12026729

申请日：2008-02-06

申请人： Chong Soon Lim ,  Viktor Wahadaniah ,  Teo Han Boon ,  Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kazuya Takagi

发明人： Chong Soon Lim ,  Viktor Wahadaniah ,  Teo Han Boon ,  Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kazuya Takagi

IPC分类号： H04N7/26

CPC分类号： H04N19/19 ,  H04N19/124 ,  H04N19/147 ,  H04N19/17 ,  H04N19/177

摘要： To provide a method and an apparatus for adaptively improving the image quality of current images to be coded by reducing effects due to pulsing artifacts. The video coding method of the present invention is intended for coding a video on a per predetermined block basis using one or more predetermined quantization control variables, and includes: calculating a correlation degree indicating the correlation between an original block in a current original picture to be coded and a prediction block in a previous uncompressed picture; changing a first predetermined quantization control variable to a second predetermined quantization control variable so as to reduce a quantization step size in the case where the correlation degree is greater than a predetermined threshold; and determining the quantization step size based on the second quantization control variable, and coding the original block on the determined quantization step size basis using a predetermined image coding tool.

摘要翻译： 提供一种用于通过减少由于脉冲伪影引起的影响来自适应地改善要编码的当前图像的图像质量的方法和装置。 本发明的视频编码方法是用于使用一个或多个预定量化控制变量对每个预定块的视频进行编码，并且包括：计算表示当前原始图像中的原始块之间的相关性的相关度为 编码和预先未压缩图像中的预测块; 将第一预定量化控制变量改变为第二预定量化控制变量，以便在相关度大于预定阈值的情况下减小量化步长; 以及基于所述第二量化控制变量来确定所述量化步长，并且使用预定的图像编码工具以所确定的量化步长对所述原始块进行编码。

公开(公告)号：US09288490B2

公开(公告)日：2016-03-15

申请号：US13876519

申请日：2011-09-29

申请人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Chong Soon Lim ,  Viktor Wahadaniah ,  Xuan Jing ,  Sue Mon Thet Naing

发明人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Chong Soon Lim ,  Viktor Wahadaniah ,  Xuan Jing ,  Sue Mon Thet Naing

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/50 ,  H04N19/70 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61 ,  H04N19/523

CPC分类号： H04N19/50 ,  H04N19/46 ,  H04N19/513 ,  H04N19/523 ,  H04N19/61 ,  H04N19/70

摘要： An image coding method decodes a coded stream which is generated by inter prediction coding a moving picture and includes processing units and a header of such units, the processing units including at least one processing unit divided in a hierarchy, the hierarchy including: a highest hierarchical layer in which a coding unit is a largest processing unit; and a lower hierarchical layer in which a prediction unit exists. The method comprises: identifying, by parsing hierarchy depth information stored in the header and indicating a hierarchical layer higher than a lowest hierarchical layer in which a smallest prediction unit exits, a hierarchical layer which is indicated by the hierarchy depth information or a hierarchical layer higher than the indicated hierarchical layer, the hierarchical layer having a prediction unit that stores an adaptive motion vector resolution switch flag necessary for decoding; and decoding the prediction unit, using the flag.

摘要翻译： 图像编码方法对通过运动图像进行帧间预测编码生成的编码流进行解码，并且包括处理单元和这些单位的标题，所述处理单元包括分层划分的至少一个处理单元，所述层次包括：最高等级 编码单元是最大处理单元的层; 以及其中存在预测单元的较低层级。 该方法包括：通过解析存储在标题中的分层深度信息，并指示高于最小预测单元退出的最低分层的分层，由层次结构深度信息或层次层更高层指示的分级层 所述分级层具有存储解码所需的自适应运动矢量分辨率开关标志的预测单元; 以及使用所述标志对所述预测单元进行解码。

公开(公告)号：US20140169450A1

公开(公告)日：2014-06-19

申请号：US14239662

申请日：2012-08-24

申请人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Hai Wei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

发明人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Hai Wei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

IPC分类号： H04N19/105

CPC分类号： H04N19/10 ,  H04N19/105 ,  H04N19/174 ,  H04N19/70

摘要： A method of encoding video including: writing a plurality of predetermined buffer descriptions into a sequence parameter set of a coded video bitstream; writing a plurality of updating parameters into a slice header of the coded video bitstream for selecting and modifying one buffer description out of the plurality of buffer descriptions; and encoding a slice into the coded video bitstream using the slice header and the modified buffer description.

摘要翻译： 一种编码视频的方法，包括：将多个预定缓冲器描述写入编码视频比特流的序列参数集; 将多个更新参数写入编码视频比特流的片头中，用于选择和修改多个缓冲器描述中的一个缓冲器描述; 以及使用片头和修改的缓冲器描述将片编码到编码视频比特流中。

公开(公告)号：US20140023140A1

公开(公告)日：2014-01-23

申请号：US13983581

申请日：2012-02-07

申请人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai ,  Toshiyasu Sugio

发明人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai ,  Toshiyasu Sugio

IPC分类号： H04N7/26

摘要： A video encoding method using reference pictures includes: writing a parameter indicating a temporal level of a reference picture or a period of a type of a reference picture into the reference picture for each of the reference pictures, creating a first list of reference pictures comprising the reference pictures sorted based on the parameter; and encoding a current picture of the video using at least the first list of reference pictures. A video decoding method using a reference pictures includes: parsing a parameter indicating a temporal level of a reference picture or a period of a type of a reference picture from each of the reference pictures; creating a first list of reference pictures comprising the reference pictures sorted based on the parameter; and decoding a current picture of the video using at least the first list of reference pictures. Corresponding video encoding and decoding apparatuses are provided.

摘要翻译： 使用参考图片的视频编码方法包括：将指示参考图片的时间水平的参数或参考图片的类型的周期写​​入参考图片中的每个参考图片，创建包括 参考图片根据参数排序; 以及使用至少所述第一参考图片列表来编码所述视频的当前照片。 使用参考图片的视频解码方法包括：从每个参考图片解析指示参考图片的时间水平的参数或参考图片的类型的周期; 创建包括基于参数排序的参考图片的参考图片的第一列表; 以及使用至少所述第一参考图片列表来解码所述视频的当前照片。 提供了相应的视频编码和解码装置。

公开(公告)号：US20130058408A1

公开(公告)日：2013-03-07

申请号：US13605043

申请日：2012-09-06

申请人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Hai Wei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu ,  Kengo Terada

发明人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Hai Wei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu ,  Kengo Terada

IPC分类号： H04N7/32

CPC分类号： H04N19/50 ,  H04N19/105 ,  H04N19/15 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/30 ,  H04N19/58 ,  H04N19/70

摘要： An image coding method includes: writing, into a sequence parameter set, buffer description defining information for defining a plurality of buffer descriptions; selecting one of the buffer descriptions for each processing unit that is a picture or a slice, and writing buffer description selecting information for specifying the selected buffer description, into a first header of the processing unit which is included in the coded bitstream; and coding the processing unit using the selected buffer description, and the buffer description defining information includes long-term information for identifying, among a plurality of reference pictures indicated in the buffer descriptions, a reference picture to be assigned as a long-term reference picture.

公开(公告)号：US08369414B2

公开(公告)日：2013-02-05

申请号：US13204035

申请日：2011-08-05

申请人： Chong Soon Lim ,  Takahiro Nishi

发明人： Chong Soon Lim ,  Takahiro Nishi

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66

CPC分类号： H04N19/188 ,  H04N19/1887 ,  H04N19/44 ,  H04N19/597 ,  H04N19/70

摘要： To provide an image decoding method allowing decoding of a multiview video even when no prefix NAL units are used. The image decoding method includes: parsing NAL units of a base view; decoding an image of the base view; parsing MVC extension parameters of a non-base view; searching whether or not prefix NAL units for a base view are present; either computing MVC extension parameters for the base view when no prefix NAL units are present or parsing the MVC extension parameters of the base view when prefix NAL units for the base view are present; and decoding the non-base view using the MVC extension parameters of the base view and the MVC extension parameters of the non-base view.

摘要翻译： 提供即使在没有使用前缀NAL单元的情况下也允许解码多视角视频的图像解码方法。 图像解码方法包括：解析基本视图的NAL单元; 解码基础视图的图像; 解析非基本视图的MVC扩展参数; 搜索是否存在用于基本视图的前缀NAL单元; 当没有前缀NAL单元时，计算基本视图的MVC扩展参数，或者当存在用于基本视图的前缀NAL单元时解析基本视图的MVC扩展参数; 以及使用非基本视图的基本视图的MVC扩展参数和MVC扩展参数来解码非基本视图。