公开(公告)号：US09693073B1

公开(公告)日：2017-06-27

申请号：US15447329

申请日：2017-03-02

申请人： Sun Patent Trust

发明人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai

IPC分类号： H04N19/159 ,  H04N19/513 ,  H04N19/503 ,  H04N19/597 ,  H04N19/176 ,  H04N19/177

CPC分类号： H04N19/513 ,  H04N19/159 ,  H04N19/176 ,  H04N19/177 ,  H04N19/44 ,  H04N19/503 ,  H04N19/51 ,  H04N19/52 ,  H04N19/521 ,  H04N19/527 ,  H04N19/577 ,  H04N19/597

摘要： A moving picture coding method includes: coding a coding target block using a motion vector; generating motion vector predictors; and coding the motion vector using one of the motion vector predictors generated in the generating of the motion vector predictors. In the generating of the motion vector predictors, a replacement vector which replaces a temporal motion vector predictor is added to the motion vector predictors when it is impossible to obtain the temporal motion vector predictor from a block which is included in a coded picture different from the coding target picture and corresponds to the coding target block.

公开(公告)号：US09661330B2

公开(公告)日：2017-05-23

申请号：US14707200

申请日：2015-05-08

申请人： SUN PATENT TRUST

发明人： Kengo Terada ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toshiyasu Sugio ,  Toru Matsunobu

IPC分类号： G06K9/36 ,  H04N19/136 ,  G06T9/00 ,  H04N19/70 ,  H04N19/122 ,  H04N19/186 ,  H04N19/44 ,  H04N19/60 ,  H04N19/176

CPC分类号： H04N19/176 ,  G06T9/007 ,  H04N19/122 ,  H04N19/136 ,  H04N19/186 ,  H04N19/44 ,  H04N19/60 ,  H04N19/70

摘要： An image coding method of coding an image on a per coding unit basis, the method comprising: applying a frequency transform to luminance data and chrominance data of transform units in the coding unit including predetermined blocks each corresponding to one or more of the transform units; and coding the luminance data and the chrominance data to which the frequency transform has been applied to generate a bitstream in which the luminance data and the chrominance data are grouped on a per predetermined block basis.

公开(公告)号：US09648323B2

公开(公告)日：2017-05-09

申请号：US13905724

申请日：2013-05-30

申请人： SUN PATENT TRUST

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

IPC分类号： H04N19/00 ,  H04N19/52 ,  H04N19/51 ,  H04N19/70 ,  H04N19/172 ,  H04N19/46 ,  H04N19/107

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/107 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/46 ,  H04N19/51 ,  H04N19/70

摘要： An image coding method includes: selecting a first picture from plural pictures; setting a first temporal motion vector prediction flag which is associated with the first picture and is a temporal motion vector prediction flag indicating whether or not temporal motion vector prediction is to be used, to indicate that the temporal motion vector prediction is not to be used, and coding the first temporal motion vector prediction flag; coding the first picture without using the temporal motion vector prediction; and coding a second picture which follows the first picture in coding order, with referring to a motion vector of a picture preceding the first picture in coding order being prohibited.

公开(公告)号：US09554147B2

公开(公告)日：2017-01-24

申请号：US14603769

申请日：2015-01-23

申请人： Sun Patent Trust

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： H04N19/50 ,  H04N19/70 ,  H04N19/174 ,  H04N19/58

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.

摘要翻译： 图像编码方法包括：向序列参数集写入定义用于定义多个缓冲器描述的信息的缓冲器描述; 选择作为图像或切片的每个处理单元的缓冲器描述之一，以及将用于指定所选择的缓冲器描述的缓冲器描述选择信息写入被包括在编码比特流中的处理单元的第一标题; 以及使用所选择的缓冲器描述对处理单元进行编码，并且缓冲器描述定义信息包括用于在缓冲器描述中指示的多个参考图像之中识别要被分配为长期参考图像的参考图片的长期信息 。

公开(公告)号：US09491470B2

公开(公告)日：2016-11-08

申请号：US14275248

申请日：2014-05-12

申请人： SUN PATENT TRUST

发明人： Tadamasa Toma ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu ,  Kengo Terada

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/13 ,  G06T9/00 ,  H04N19/176 ,  H04N19/70 ,  H04N19/132 ,  H04N19/423

CPC分类号： H04N19/15 ,  G06T9/00 ,  H04N19/13 ,  H04N19/132 ,  H04N19/176 ,  H04N19/423 ,  H04N19/46 ,  H04N19/70

摘要： An image decoding method of decoding units that are included in a picture is provided. The image decoding method decodes a first flag which indicates whether a removal time of encoded data from a buffer by a hypothetical decoder is set per unit. The buffer is for storing the encoded data. The image decoding method further decodes a second flag indicating whether an interval between removal times of the units is one of constant nd arbitrary when the removal times are set per unit. The image decoding method removes the encoded data from the buffer at the removal time, and decodes the removed encoded data.

摘要翻译： 提供了包括在图像中的解码单元的图像解码方法。 图像解码方法对第一标志进行解码，该标志指示每单位是否设置由假设解码器从缓冲器中的编码数据的去除时间。 缓冲区用于存储编码数据。 图像解码方法进一步解码指示当每单位设置移除时间时，单元的去除时间间隔是否为常数nd任意之一的第二标志。 图像解码方法在去除时从缓冲器中去除编码数据，并解码去除的编码数据。

公开(公告)号：US12132930B2

公开(公告)日：2024-10-29

申请号：US18239947

申请日：2023-08-30

申请人： Sun Patent Trust

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

IPC分类号： H04N19/56 ,  H04N19/172 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/58 ,  H04N19/61

CPC分类号： H04N19/56 ,  H04N19/172 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/58 ,  H04N19/61

摘要： An image coding method includes: deriving a candidate for a motion vector predictor from a co-located motion vector; adding the candidate to a list; selecting the motion vector predictor from the list; and coding a current block and coding a current motion vector, wherein the deriving includes: deriving the candidate by a first derivation scheme in the case of determining that each of a current reference picture and a co-located reference picture is a long-term reference picture; and deriving the candidate by a second derivation scheme in the case of determining that each of the current reference picture and the co-located reference picture is a short-term reference picture.

公开(公告)号：US12108070B2

公开(公告)日：2024-10-01

申请号：US18226383

申请日：2023-07-26

申请人： Sun Patent Trust

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

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

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：US20240305777A1

公开(公告)日：2024-09-12

申请号：US18650538

申请日：2024-04-30

申请人： Sun Patent Trust

发明人： Toshiyasu SUGIO ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai

IPC分类号： H04N19/107 ,  H04N19/105 ,  H04N19/124 ,  H04N19/137 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/52 ,  H04N19/56 ,  H04N19/567 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/61 ,  H04N19/70

CPC分类号： H04N19/107 ,  H04N19/105 ,  H04N19/124 ,  H04N19/137 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/56 ,  H04N19/567 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/61 ,  H04N19/51 ,  H04N19/70

摘要： An image coding method includes: adding, to a candidate list, a first adjacent motion vector as a candidate for a predicted motion vector to be used for coding the current motion vector; selecting the predicted motion vector from the candidate list; and coding the current motion vector, wherein in the adding, the first adjacent motion vector indicating a position in a first reference picture included in a first reference picture list is added to the candidate list for the current motion vector indicating a position in a second reference picture included in a second reference picture list.

公开(公告)号：US20240205450A1

公开(公告)日：2024-06-20

申请号：US18589780

申请日：2024-02-28

申请人： Sun Patent Trust

发明人： Toshiyasu SUGIO ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu ,  Kengo Terada

IPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/503

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/159 ,  H04N19/46 ,  H04N19/503 ,  H04N19/172 ,  H04N19/176

摘要： A moving picture coding includes: coding a first flag indicating whether or not temporal motion vector prediction is used; when the first flag indicates that the temporal motion vector prediction is used: coding a first parameter for calculating the temporal predictive motion vector; wherein when the first flag indicates that the temporal motion vector prediction is not used, the first parameter is not coded.

公开(公告)号：USRE49991E1

公开(公告)日：2024-05-28

申请号：US17392637

申请日：2021-08-03

申请人： Sun Patent Trust

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

IPC分类号： G06K9/36 ,  G06K9/46 ,  G06T9/00 ,  H04N19/17 ,  H04N19/463 ,  H04N19/503 ,  H04N19/70 ,  H04N19/96

CPC分类号： H04N19/503 ,  G06T9/004 ,  H04N19/17 ,  H04N19/463 ,  H04N19/70 ,  H04N19/96

摘要： An image decoding method decodes a coded stream which includes processing units and a header of the processing units, and which is generated by coding a moving picture using inter prediction. The processing units includes at least one processing unit divided in a hierarchy, the hierarchy including a highest hierarchical layer in which a coding unit exists as a largest processing unit and a lower hierarchical layer in which a prediction unit exists. The method includes 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 includes a prediction unit in which a reference index is stored. The prediction unit is decoded using the reference index.