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1. 发明授权

US10841573B2 Methods and apparatuses for encoding and decoding video using multiple reference pictures 有权
公开(公告)号：US10841573B2
公开(公告)日：2020-11-17
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： H04N19/105 , H04N19/61 , H04N19/573
CPC分类号： H04N19/105 , H04N19/573 , H04N19/61
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.

2. 发明授权

US09363525B2 Image decoding method, image coding method, image decoding apparatus, image coding apparatus, and image coding and decoding apparatus 有权
标题翻译：图像解码方法，图像编码方法，图像解码装置，图像编码装置以及图像编码和解码装置
公开(公告)号：US09363525B2
公开(公告)日：2016-06-07
申请号：US13534363
申请日：2012-06-27
申请人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio , Kyoko Tanikawa , Toru Matsunobu
发明人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio , Kyoko Tanikawa , Toru Matsunobu
IPC分类号： H04N7/26 , H04M7/00 , H04N19/463 , H04N19/176 , H04N19/70 , H04N19/13 , H04N19/134 , H04N19/593 , H04N19/159 , H04N19/12
CPC分类号： H04N19/134 , H04N19/12 , H04N19/13 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/593 , H04N19/70
摘要： The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is “no_residual_data_flag”.
摘要翻译：图像解码方法包括：从多个上下文中确定要处理的当前块中使用的上下文; 以及使用所确定的上下文对与当前块相对应的比特序列执行算术解码，其中在所述确定中：在使用当前块的相邻块的控制参数的条件下确定所述上下文，当所述信号类型为第一类型，相邻块是当前块的左块和上块; 并且在信号类型是第二类型且第二类型是“no_residual_data_flag”的情况下，在不使用上部块的控制参数的条件下确定上下文。

3. 发明授权

US09167247B2 Methods and apparatuses for encoding and decoding video using inter-color-plane prediction 有权
标题翻译：使用彩色间预测对视频进行编码和解码的方法和装置
公开(公告)号：US09167247B2
公开(公告)日：2015-10-20
申请号：US13810736
申请日：2012-05-18
申请人： Viktor Wahadaniah , Chong Soon Lim , Sue Mon Thet Naing , Jin Li , Haiwei Sun , Takahiro Nishi , Hisao Sasai , Youji Shibahara , Kyoko Tanikawa , Toshiyasu Sugio , Toru Matsunobu
发明人： Viktor Wahadaniah , Chong Soon Lim , Sue Mon Thet Naing , Jin Li , Haiwei Sun , Takahiro Nishi , Hisao Sasai , Youji Shibahara , Kyoko Tanikawa , Toshiyasu Sugio , Toru Matsunobu
IPC分类号： H04N19/61 , H04N19/103 , H04N19/50 , H04N19/176 , H04N19/46 , H04N19/186
CPC分类号： H04N19/50 , H04N19/103 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/61
摘要： Methods and apparatuses for performing inter-color-plane prediction with adaptability to various existing video content representations are provided. A plurality of predetermined rescaling schemes based on a color plane format is selected. A first block of original samples of a first color plane is encoded into a compressed bitstream. A block of reconstructed samples of the first color plane is reconstructed. An inter-color-plane prediction process is performed to produce samples of a second color plane. Said block of prediction samples of the second color plane is subtracted from a second block of original samples of the second color plane to produce a block of residual samples of the second color plane where the positions of the first block and the second block of original samples are aligned. Finally, the block of residual samples of the second color plane is encoded.
摘要翻译：提供了用于对各种现有视频内容表示适应性进行彩色间预测的方法和装置。选择基于彩色平面格式的多个预定重定标方案。将第一颜色平面的原始样本的第一块编码为压缩比特流。重建第一色平面的重建样本块。执行色间平面预测处理以产生第二色平面的样本。从第二颜色平面的原始样本的第二块中减去所述第二颜色平面的预测样本块，以产生第二颜色平面的残差样本块，其中第一块和第二块原始样本的位置对齐。最后，编码第二色平面的残差样本块。

4. 发明授权

US08743969B2 Image decoding method and apparatus based on a signal type of the control parameter of the current block 有权
标题翻译：基于当前块的控制参数的信号类型的图像解码方法和装置
公开(公告)号：US08743969B2
公开(公告)日：2014-06-03
申请号：US13530218
申请日：2012-06-22
申请人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio , Kyoko Tanikawa , Toru Matsunobu
发明人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio , Kyoko Tanikawa , Toru Matsunobu
IPC分类号： H04N7/12
CPC分类号： H04N19/157 , H04N19/13 , H04N19/176 , H04N19/197 , H04N19/463
摘要： The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type.
摘要翻译：图像解码方法包括：从多个上下文中确定要处理的当前块中使用的上下文; 以及使用所确定的上下文对与当前块相对应的比特序列执行算术解码，其中在所述确定中：在使用当前块的相邻块的控制参数的条件下确定所述上下文，当所述信号类型为第一类型，相邻块是当前块的左块和上块; 并且当信号类型是第二类型时，在不使用上部块的控制参数的条件下确定上下文。

5. 发明申请

US20140105283A1 METHOD AND APPARATUS FOR ENCODING AND DECODING VIDEO USING INTRA PREDICTION MODE DEPENDENT ADAPTIVE QUANTIZATION MATRIX 有权
标题翻译：使用内部预测模式依赖自适应量化矩阵编码和解码视频的方法和装置
公开(公告)号：US20140105283A1
公开(公告)日：2014-04-17
申请号：US14125753
申请日：2012-06-12
申请人： Jin Li , Chong Soon Lim , Viktor Wahadaniah , Sue Mon Thet Naing , Hai Wei Sun , Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio , Kyoko Tanikawa , Toru Matsunobu
发明人： Jin Li , Chong Soon Lim , Viktor Wahadaniah , Sue Mon Thet Naing , Hai Wei Sun , Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio , Kyoko Tanikawa , Toru Matsunobu
IPC分类号： H04N19/124 , H04N19/129 , H04N19/159
CPC分类号： H04N19/157 , H04N19/11 , H04N19/124 , H04N19/126 , H04N19/129 , H04N19/159 , H04N19/176 , H04N19/625
摘要： A method of encoding video using intra prediction mode dependent quantization matrix includes: calculating an array of quantizers for each size of block unit (100); encoding the arrays of quantizers into header of compressed video stream (102); selecting one scanning order based on a selected intra prediction mode among a plurality of scanning orders (112); scanning the array of quantizers to obtain a block of quantizers based on the selected scanning order (114).
摘要翻译：使用帧内预测模式相关量化矩阵编码视频的方法包括：针对块单元（100）的每个大小计算量化器阵列; 将量化器阵列编码为压缩视频流（102）的报头; 在多个扫描顺序（112）中基于所选择的帧内预测模式选择一个扫描顺序; 扫描量化器阵列以基于所选择的扫描顺序获得量化器块（114）。

6. 发明申请

US20130329797A1 IMAGE CODING METHOD AND IMAGE DECODING METHOD 审中-公开
标题翻译：图像编码方法和图像解码方法
公开(公告)号：US20130329797A1
公开(公告)日：2013-12-12
申请号：US14000476
申请日：2012-02-20
申请人： Toshiyasu Sugio , Takahiro Nishi , Youji Shibahara , Hisao Sasai
发明人： Toshiyasu Sugio , Takahiro Nishi , Youji Shibahara , Hisao Sasai
IPC分类号： H04N7/36
CPC分类号： H04N19/105 , H04N19/52 , H04N19/577 , H04N19/61
摘要： An image coding method includes: writing, to a memory, a first motion vector for a first sub-block; reading, from the memory, the first motion vector; coding a second motion vector for a second sub-block, using the first motion vector; selecting a representative motion vector from among motion vectors for sub-blocks; determining whether or not the representative motion vector is used in place of the first motion vector; and adding, to a bitstream, a flag indicating whether or not the representative motion vector is used, wherein when the representative motion vector is used: in the writing, the representative motion vector is written to the memory; in the reading, the representative motion vector is read from the memory; and in the coding, the second motion vector is coded using the representative motion vector.
摘要翻译：图像编码方法包括：向存储器写入第一子块的第一运动矢量; 从记忆中读出第一运动矢量; 使用所述第一运动矢量对第二子块的第二运动矢量进行编码; 从子块的运动矢量中选择代表运动矢量; 确定代表运动矢量是否代替第一运动矢量; 并且向比特流添加指示是否使用代表运动矢量的标志，其中当使用代表运动矢量时：在写入中，将代表运动矢量写入存储器; 在读取中，从存储器中读取代表运动矢量; 并且在编码中，使用代表运动矢量对第二运动矢量进行编码。

7. 发明申请

US20130294520A1 METHODS AND APPARATUSES FOR ENCODING AND DECODING VIDEO USING MULTIPLE REFERENCE PICTURES 有权
标题翻译：使用多个参考图片编码和解码视频的方法和设备
公开(公告)号：US20130294520A1
公开(公告)日：2013-11-07
申请号：US13978633
申请日：2012-01-12
申请人： Chong Soon Lim , Viktor Wahadaniah , Sue Mon Thet Naing , Takahiro Nishi , Youji Shibahara , Hisao Sasai , Toshiyasu Sugio
发明人： Chong Soon Lim , Viktor Wahadaniah , Sue Mon Thet Naing , Takahiro Nishi , Youji Shibahara , Hisao Sasai , Toshiyasu Sugio
IPC分类号： H04N7/36
CPC分类号： H04N19/58 , H04N19/46 , H04N19/573
摘要： A method of encoding video using a plurality of reference pictures is provided. The method includes: writing one of a parameter or a flag into one or more reference pictures of the plurality of reference pictures, creating a first list of reference pictures comprising the plurality of reference pictures sorted based on the parameter or flag, and encoding a current picture of the video using at least the first list of reference pictures. A method of decoding video using a plurality of reference pictures is also provided. The method includes parsing one of a parameter or flag from one or more reference pictures of the plurality of reference pictures, creating a first list of reference pictures comprising the plurality of reference pictures sorted based on the parameter or flag, and decoding a current picture of the video using at least the first list of reference pictures. In addition, there are provided corresponding apparatuses for encoding and decoding video.
摘要翻译：提供了使用多个参考图片来编码视频的方法。该方法包括：将参数或标志中的一个写入多个参考图片的一个或多个参考图片中，创建包括基于参数或标志排序的多个参考图片的参考图片的第一列表，以及编码当前使用至少第一参考图片列表的视频图片。还提供了使用多个参考图片来解码视频的方法。该方法包括从多个参考图片中的一个或多个参考图片解析参数或标记中的一个，创建包括基于参数或标志排序的多个参考图片的参考图片的第一列表，以及解码当前图片的当前图片该视频至少使用参考图片的第一列表。此外，还提供了用于编码和解码视频的对应装置。

8. 发明授权

US08559737B2 Image coding method, image decoding method, image coding apparatus, image decoding apparatus, and image coding and decoding apparatus 有权
标题翻译：图像编码方法，图像解码方法，图像编码装置，图像解码装置以及图像编码和解码装置
公开(公告)号：US08559737B2
公开(公告)日：2013-10-15
申请号：US13534163
申请日：2012-06-27
申请人： Toshiyasu Sugio , Takahiro Nishi , Youji Shibahara , Kyoko Tanikawa , Hisao Sasai , Toru Matsunobu
发明人： Toshiyasu Sugio , Takahiro Nishi , Youji Shibahara , Kyoko Tanikawa , Hisao Sasai , Toru Matsunobu
IPC分类号： G06K9/36
CPC分类号： H04N19/00684 , H04N19/463 , H04N19/513 , H04N19/577
摘要： An image coding method includes: (i) determining, for each of one or more associated blocks, whether to add a motion vector of the associated block to a list, and (ii) adding the motion vector of the associated block to the list when determining that the motion vector of the associated block is to be added to the list; selecting, from the list, a motion vector which is to be merged to a current block; and (i) merging the selected motion vector to the current block, and (ii) coding the current block using the merged motion vector as a motion vector of the current block, and in the determining, it is determined that the motion vector of the associated block is not to be added to the list when an associated picture and an associated reference picture match temporally or when a current picture and a current reference picture match temporally.
摘要翻译：图像编码方法包括：（i）针对一个或多个关联块中的每一个确定是否将相关块的运动矢量添加到列表，以及（ii）将相关块的运动矢量添加到列表中，确定相关块的运动矢量将被添加到列表中; 从列表中选择要合并到当前块的运动矢量; 以及（i）将所选择的运动矢量合并到当前块，以及（ii）使用合并的运动矢量对当前块进行编码作为当前块的运动矢量，并且在确定中，确定当相关联的图片和相关联的参考图片在时间上匹配时，或当当前图片和当前参考图片在时间上匹配时，关联块不被添加到列表。

9. 发明申请

US20130235933A1 IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, PROGRAM, AND INTEGRATED CIRUIT 有权
标题翻译：图像编码方法，图像解码方法，图像编码装置，图像解码装置，程序和集成电路
公开(公告)号：US20130235933A1
公开(公告)日：2013-09-12
申请号：US13988582
申请日：2011-11-24
申请人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio
发明人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio
IPC分类号： H04N7/32
CPC分类号： H04N19/50 , H04N19/13 , H04N19/46 , H04N19/573 , H04N19/61 , H04N19/70
摘要： An image coding method includes: obtaining first information and second information from a current signal to be coded, the first information identifying at least one reference picture list used in inter prediction of an image out of a plurality of reference picture lists, the second information identifying at least one reference picture used in the inter prediction of the image out of reference pictures included in the at least one reference picture list identified by the first information; mixing the first information and the second information to generate a mixed signal; selecting a variable-length coding table according to a maximum variation range of the mixed signal; and variable-length coding the mixed signal using the selected variable-length coding table.
摘要翻译：一种图像编码方法包括：从当前要编码的信号中获取第一信息和第二信息，所述第一信息标识用于多个参考图像列表中的图像的帧间预测中使用的至少一个参考图像列表，所述第二信息识别在包括在由第一信息识别的至少一个参考图像列表中的参考图像中的图像的帧间预测中使用的至少一个参考图像; 混合第一信息和第二信息以产生混合信号; 根据混合信号的最大变化范围选择可变长度编码表; 并使用所选择的可变长度编码表对混合信号进行可变长度编码。

10. 发明申请

US20130142260A1 IMAGE CODING METHOD AND IMAGE DECODING METHOD 有权
标题翻译：图像编码方法和图像解码方法
公开(公告)号：US20130142260A1
公开(公告)日：2013-06-06
申请号：US13817004
申请日：2012-05-31
申请人： Viktor Wahadaniah , Chong Soon Lim , Sue Mon Thet Naing , Jin Li , Haiwei Sun , Takahiro Nishi , Hisao Sasai , Youji Shibahara , Kyoko Tanikawa , Toshiyasu Sugio , Toru Matsunobu
发明人： Viktor Wahadaniah , Chong Soon Lim , Sue Mon Thet Naing , Jin Li , Haiwei Sun , Takahiro Nishi , Hisao Sasai , Youji Shibahara , Kyoko Tanikawa , Toshiyasu Sugio , Toru Matsunobu
IPC分类号： H04N7/26
CPC分类号： H04N19/50 , H04N19/102 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/59 , H04N19/593
摘要： An image coding method includes obtaining image format information, determining a subsampling method for a luminance signal, storing the subsampling method in a memory, obtaining the subsampling method from the memory, performing subsampling on a luminance signal of a surrounding pixel, calculating a parameter of the linear model using (i) the luminance signal that is subsampled and (ii) chrominance of the surrounding pixel, performing subsampling on the luminance signal of the current block to be coded, and calculating prediction chrominance of the current block to be coded using (i) the parameter of the linear model and (ii) the luminance signal that is subsampled.
摘要翻译：图像编码方法包括获得图像格式信息，确定用于亮度信号的子采样方法，将二次采样方法存储在存储器中，从存储器获取二次采样方法，对周围像素的亮度信号进行二次采样，计算参数所述线性模型使用（i）被二次采样的亮度信号和（ii）周围像素的色度，对要编码的当前块的亮度信号执行子采样，以及使用（ i）线性模型的参数和（ii）被二次采样的亮度信号。

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