公开(公告)号：US11956440B2

公开(公告)日：2024-04-09

申请号：US17987097

申请日：2022-11-15

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： H04N19/134 ,  H04N19/105 ,  H04N19/115 ,  H04N19/119 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/42 ,  H04N19/423 ,  H04N19/44 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

CPC分类号： H04N19/134 ,  H04N19/105 ,  H04N19/115 ,  H04N19/119 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/42 ,  H04N19/423 ,  H04N19/44 ,  H04N19/573 ,  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; writing, into the sequence parameter set, reference list description defining information for defining a plurality of reference list descriptions corresponding to the buffer descriptions; and writing, into a first header of each processing unit which is included in a coded bitstream, buffer description selecting information for specifying a selected buffer description.

公开(公告)号：US11902562B2

公开(公告)日：2024-02-13

申请号：US17882902

申请日：2022-08-08

申请人： Sun Patent Trust

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

IPC分类号： H04N7/12 ,  H04N19/513 ,  H04N19/176 ,  H04N19/103 ,  H04N19/52 ,  H04N19/70 ,  H04N19/44 ,  H04N19/61

CPC分类号： H04N19/513 ,  H04N19/103 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/70 ,  H04N19/61

摘要： A method of performing motion vector prediction for a current block in a picture is provided which includes: deriving a candidate for a motion vector predictor to code a current motion vector of the current block, from a first motion vector of a first block that is spatially adjacent or temporally adjacent to the current block; adding the derived candidate to a list of candidates; and deriving at least one motion vector predictor based on a selected candidate from the list of candidates, wherein the deriving of the candidate includes determining whether to derive the candidate from the first motion vector, based on a type of a current reference picture and a type of a first reference picture, the current reference picture being referred to from the current block using the current motion vector, the first reference picture being referred to from the first block using the first motion vector.

公开(公告)号：US11812048B2

公开(公告)日：2023-11-07

申请号：US17874468

申请日：2022-07-27

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 ,  Kyoko Tanikawa ,  Toru Matsunobu ,  Kengo Terada

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

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

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：US11310500B2

公开(公告)日：2022-04-19

申请号：US16801228

申请日：2020-02-26

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： H04N19/124 ,  H04N19/147 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/61 ,  H04N19/12 ,  H04N19/44 ,  H04N19/42

摘要： An image decoding method which can improve both image quality and coding efficiency is an image decoding method for decoding a coded stream which includes a plurality of processing units and a header for the processing units, the coded stream being generated by coding a moving picture, the processing units including at least one processing unit layered to be split into a plurality of smaller processing units, the image decoding method including specifying a hierarchical layer having a processing unit in which a parameter necessary for decoding is stored, by parsing hierarchy depth information stored in the header, and decoding the processing unit using the parameter stored in the processing unit located at the specified hierarchical layer.

公开(公告)号：US11019342B2

公开(公告)日：2021-05-25

申请号：US16681953

申请日：2019-11-13

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： H04N19/134 ,  H04N19/573 ,  H04N19/58 ,  H04N19/44 ,  H04N19/105 ,  H04N19/70 ,  H04N19/172 ,  H04N19/174 ,  H04N19/42 ,  H04N19/115 ,  H04N19/119 ,  H04N19/136 ,  H04N19/423

摘要： An image coding method includes: writing, into a sequence parameter set, buffer description defining information for defining a plurality of buffer descriptions; writing, into the sequence parameter set, reference list description defining information for defining a plurality of reference list descriptions corresponding to the buffer descriptions; and writing, into a first header of each processing unit which is included in a coded bitstream, buffer description selecting information for specifying a selected buffer description.

公开(公告)号：US10820005B2

公开(公告)日：2020-10-27

申请号：US16718379

申请日：2019-12-18

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 ,  H04N19/15 ,  H04N19/105 ,  H04N19/30 ,  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：US10666951B2

公开(公告)日：2020-05-26

申请号：US16056939

申请日：2018-08-07

申请人： Sun Patent Trust

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

IPC分类号： H04N19/159 ,  H04N19/176 ,  H04N19/172 ,  H04N19/126 ,  H04N19/61 ,  H04N19/46 ,  H04N19/157 ,  H04N19/50 ,  H04N19/196

摘要： A method of encoding an image into a coded image, the method comprising: writing a quantization offset parameter into the coded image, determining a prediction mode type for coding a block of image samples of the image into a coding unit of the coded image, determining a quantization parameter for the block of image samples, and determining if the prediction mode type is of a predetermined type, wherein if the prediction mode type is of the predetermined type, the method further comprises: modifying the determined quantization parameter using the quantization offset parameter, and performing a quantization process for the block of image samples using the modified quantization parameter, and wherein if the prediction mode type is not of the predetermined type, the method further comprises: performing a quantization process for the block of image samples using the determined quantization parameter.

公开(公告)号：US10567792B2

公开(公告)日：2020-02-18

申请号：US16027589

申请日：2018-07-05

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 ,  H04N19/51 ,  H04N19/52 ,  H04N19/58 ,  H04N19/61 ,  H04N19/172 ,  H04N19/176 ,  H04N19/513

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：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 。