公开(公告)号：US11758174B2

公开(公告)日：2023-09-12

申请号：US17871170

申请日：2022-07-22

申请人： Sun Patent Trust

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

IPC分类号： H04N19/50 ,  H04N19/176 ,  H04N19/70 ,  H04N19/61 ,  H04N19/91 ,  H04N19/196 ,  H04N19/157 ,  H04N19/13 ,  H04N19/436 ,  H04N19/85

CPC分类号： H04N19/50 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/436 ,  H04N19/61 ,  H04N19/70 ,  H04N19/85 ,  H04N19/91

摘要： A moving picture coding method includes (i) transforming, for each of one or more second processing units included in the first processing unit, a moving picture signal in a spatial domain into a frequency domain coefficient and quantizing the frequency domain coefficient, and (ii) performing arithmetic coding on a luminance CBF flag indicating whether or not a quantized coefficient is included in the second processing unit in which transform and quantization are performed, wherein, in the arithmetic coding, a probability table for use in arithmetic coding is determined according to whether or not the size of the first processing unit is identical to the size of the second processing unit and whether or not the second processing unit has a predetermined maximum size.

公开(公告)号：US11711580B2

公开(公告)日：2023-07-25

申请号：US17375351

申请日：2021-07-14

申请人： Sun Patent Trust

发明人： Tadamasa Toma ,  Noritaka Iguchi ,  Takahiro Nishi ,  Hisaya Katou

IPC分类号： H04N21/44 ,  H04N21/462 ,  H04H60/13 ,  H04N21/488 ,  H04N21/8543 ,  H04N21/43 ,  H04H20/18

CPC分类号： H04N21/4622 ,  H04H60/13 ,  H04N21/4302 ,  H04N21/43072 ,  H04N21/44004 ,  H04N21/44012 ,  H04N21/4888 ,  H04N21/8543 ,  H04H20/18 ,  H04H2201/40

摘要： According to one aspect of the present disclosure, a transmission method for enabling transmission of content using a broadcast and a communication channel includes: transmitting playback control information and service information using at least the broadcast wave, the service information being information for playing back content transmission using the broadcast and content transmission using the communication channel when the content is transmitted using the broadcast and the communication channel. The service information includes attribute information indicating that the first content data and the second content data constitute the content and location information that indicates a location for acquiring meta-information on playback control of the second content. The playback control information includes indexes of a relationship between the first content data and the second content data.

公开(公告)号：US11711521B2

公开(公告)日：2023-07-25

申请号：US17833649

申请日：2022-06-06

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： H04N19/00 ,  H04N19/139 ,  H04N19/105 ,  H04N19/52 ,  H04N19/503 ,  H04N19/513 ,  H04N19/15 ,  H04N19/593 ,  H04N19/567 ,  H04N19/51 ,  H04N19/44 ,  H04N7/00 ,  H04N19/56 ,  H04N19/137 ,  H04N19/176 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/61 ,  H04N19/172

CPC分类号： H04N19/139 ,  H04N7/00 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/137 ,  H04N19/15 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/567 ,  H04N19/593 ,  H04N19/61 ,  H04N19/172

摘要： A moving picture coding apparatus includes an intra-inter prediction unit which calculates a second motion vector by performing a scaling process on a first motion vector of a temporally neighboring corresponding block, when selectively adding, to a list, a motion vector of each of one or more corresponding blocks each of which is either a block included in a current picture to be coded and spatially neighboring a current block to be coded or a block included in a picture other than the current picture and temporally neighboring the current block, determines whether the second motion vector has a magnitude that is within a predetermined magnitude or not within the predetermined magnitude, and adds the second motion vector to the list when the intra-inter prediction unit determines that the second motion vector has a magnitude that is within the predetermined magnitude range.

公开(公告)号：US11647218B2

公开(公告)日：2023-05-09

申请号：US17152042

申请日：2021-01-19

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： H04N19/51 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/46 ,  H04N19/90

CPC分类号： H04N19/51 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/46 ,  H04N19/90

摘要： A moving picture coding method includes: making a determination as to whether or not to code all blocks in a current picture in the skip mode; setting, based on a result of the determination, a first flag indicating whether or not a temporally neighboring block is to be referenced, a value of a parameter for determining a total number of merging candidates, and a second flag for each block included in the current picture, the second flag indicating whether or not the block is to be coded in the skip mode; calculating, as a merging candidate, a neighboring block usable for merging; and coding an index which indicates a merging candidate to be used for coding of the current block and attaching the coded index to a bitstream.

公开(公告)号：US11647211B2

公开(公告)日：2023-05-09

申请号：US15130080

申请日：2016-04-15

申请人： Sun Patent Trust

发明人： Kengo Terada ,  Takahiro Nishi ,  Hisao Sasai

IPC分类号： H04N19/31 ,  H04N21/845 ,  H04N19/70 ,  H04N19/46 ,  H04N19/587

CPC分类号： H04N19/31 ,  H04N19/46 ,  H04N19/587 ,  H04N19/70 ,  H04N21/845

摘要： An image coding method of hierarchically coding a plurality of pictures to generate a bitstream, includes: coding each of the plurality of pictures, which belongs to any one of a plurality of hierarchical layers, with reference to a picture belonging to a hierarchical layer which is same as or lower than a hierarchical layer to which the picture belongs, and without reference to a picture belonging to a hierarchical layer which is higher than the hierarchical layer to which the picture belongs; and generating the bitstream by coding the coded pictures and time information indicating decoding times of the coded pictures. The time information indicates that the decoding times are set at equal intervals for low-layer pictures which are the plurality of pictures other than highest-layer pictures belonging to a highest layer among the plurality of hierarchical layers.

公开(公告)号：US11647208B2

公开(公告)日：2023-05-09

申请号：US17539892

申请日：2021-12-01

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： H04N19/192 ,  H04N19/105 ,  H04N19/176 ,  H04N19/149 ,  H04N19/52 ,  H04N19/46

CPC分类号： H04N19/192 ,  H04N19/105 ,  H04N19/149 ,  H04N19/176 ,  H04N19/52 ,  H04N19/46

摘要： A picture coding method includes: performing a first derivation process for deriving a first merging candidate which includes a candidate set of a prediction direction, a motion vector, and a reference picture index for use in coding of a current block; performing a second derivation process for deriving a second merging candidate; selecting a merging candidate to be used in the coding of the current block from among the first and second merging candidates; and attaching an index for identifying the selected merging candidate to the bitstream; wherein the first derivation process is performed so that a total number of the first merging candidates does not exceed a predetermined number, and the second derivation process is performed when the total number of the first merging candidates is less than a predetermined maximum number of merging candidates.

公开(公告)号：US11570444B2

公开(公告)日：2023-01-31

申请号：US17389892

申请日：2021-07-30

申请人： Sun Patent Trust

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

IPC分类号： H04N19/13 ,  H04N19/51 ,  H04N19/52 ,  H04N19/70 ,  H04N19/102 ,  H04N19/105 ,  H04N19/134 ,  H04N19/139 ,  H04N19/176 ,  H04N19/184 ,  H04N19/196 ,  H04N19/577

摘要： A moving picture decoding apparatus, method, and medium for decoding a current block are provided. A first candidate is derived from a first motion vector that has been used to decode a first block. The first block is adjacent to the current block. A first index identifying a reference picture to be selected for decoding the current block is decoded. A second candidate having a second motion vector that includes a non-zero value is derived. The non-zero value is assigned to the reference picture. A selected candidate is selected from a plurality of candidates, including the first candidate and the second candidate. A second index identifying the selected candidate is decoded. The current block is decoded using the selected candidate. The second candidate includes the non-zero value of the reference picture, with the reference picture being selected from a plurality of referable reference pictures.

公开(公告)号：US11553202B2

公开(公告)日：2023-01-10

申请号：US16516689

申请日：2019-07-19

申请人： Sun Patent Trust

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

IPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/172 ,  H04N19/513

摘要： Various embodiments for calculating a motion vector predictor for decoding a motion vector of a current block are provided. The motion vector is selected from a candidate list. When a motion vector used for coding a first block spatially adjacent to the current block in a current picture is useable for coding the current block, one or more first candidates is added to the candidate list based on the motion vector used for coding the first block. A second candidate is added to the candidate list based on a motion vector used for coding a second block within a first collocated picture. When a total number of available candidates in the candidate list is less than a predetermined number, a third candidate is added to the candidate list based on a motion vector used for coding a third block within a second collocated picture.

公开(公告)号：US11496762B2

公开(公告)日：2022-11-08

申请号：US17229164

申请日：2021-04-13

申请人： Sun Patent Trust

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

IPC分类号： H04N19/50 ,  H04N19/31 ,  H04N19/423 ,  H04N19/172 ,  H04N19/174 ,  H04N19/187 ,  H04N19/44

摘要： With an image coding method which allows reduction of processing loads, when pictures included in a video signal are classified into layers so as to belong to their respective layers, a picture that belongs to the second layer that is located in a range restricted according to the first layer to which a current picture to be coded that is one of the pictures belongs, is referred to as a reference picture for the current picture, and the current picture is coded based on the reference picture.

公开(公告)号：US20220201324A1

公开(公告)日：2022-06-23

申请号：US17692406

申请日：2022-03-11

申请人： Sun Patent Trust

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

IPC分类号： H04N19/513 ,  H04N19/52 ,  H04N19/31 ,  H04N19/573

摘要： A moving picture coding apparatus includes: an inter prediction control unit which determines to code a motion vector using, among candidate predicted motion vectors, a candidate predicted motion vector having the least error with relative to a motion vector derived by motion estimation; a picture type determination unit which generates picture type information; a temporal direction vector calculation unit which derives a candidate predicted motion vector in temporal direct; and a co-located reference direction determination unit which generates, for each picture, a co-located reference direction flag.