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公开(公告)号：US20250133219A1
公开(公告)日：2025-04-24
申请号：US18999243
申请日：2024-12-23
Inventor： Kiyofumi ABE , Takahiro Nishi , Tadamasa Toma , Ryuichi Kanoh , Chong Soon Lim , Ru Ling Liao , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Jing Ya Li
IPC: H04N19/159 , H04N19/119 , H04N19/139 , H04N19/513
Abstract: An encoder encodes a video, and includes: circuitry; and memory coupled to the circuitry. Using the memory, the circuitry: obtains at least two items of prediction information for a first partition included in the video; derives at least one template from neighboring samples which neighbor the first partition; calculates at least two costs, using the at least one template and the at least two items of prediction information; using the at least two costs, (i) determines at least one splitting direction for the first partition or (ii) assigns one of the at least two items of prediction information to a second partition split from the first partition according to the splitting direction, and another thereof to a third partition split from the first partition according to the splitting direction; and encodes the first partition according to the splitting direction and the at least two items of prediction information.
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公开(公告)号：US12262010B2
公开(公告)日：2025-03-25
申请号：US18365054
申请日：2023-08-03
Inventor： Chong Soon Lim , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Ru Ling Liao , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/119 , H04N19/176 , H04N19/50 , H04N19/60
Abstract: An encoder according to one aspect of the present disclosure encodes a block of an image, and includes a processor and memory connected to the processor. Using the memory, the processor partitions a block into a plurality of sub blocks and encodes a sub block included in the plurality of sub blocks in an encoding process including at least a transform process or a prediction process. The block is partitioned using a multiple partition including at least three odd-numbered child nodes and each of a width and a height of each of the plurality of sub blocks is a power of two.
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公开(公告)号：US12231665B2
公开(公告)日：2025-02-18
申请号：US17984675
申请日：2022-11-10
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma
Abstract: An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry: encodes one or more pictures which have common time information and each of which is included in a different layer; adds the one or more pictures into one access unit in a bitstream; and adds, into the bitstream, a first flag indicating that a total number of access units present in the bitstream is one.
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204.发明授权公开(公告)号：US12229888B2
公开(公告)日：2025-02-18
申请号：US18220429
申请日：2023-07-11
Inventor： Tatsuya Koyama , Takahiro Nishi , Toshiyasu Sugio , Tadamasa Toma , Satoshi Yoshikawa , Toru Matsunobu
Abstract: A display method is a display method performed by a display device that operates in conjunction with a mobile object, and includes: determining which one of first surrounding information, which is video showing a surrounding condition of the mobile object and is generated using two-dimensional information, and second surrounding information, which is video showing the surrounding condition of the mobile object and is generated using three-dimensional data, is to be displayed, based on a driving condition of the mobile object; and displaying the one of the first surrounding information and the second surrounding information that is determined to be displayed.
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公开(公告)号：US12219169B2
公开(公告)日：2025-02-04
申请号：US18503941
申请日：2023-11-07
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/52 , H04N19/117 , H04N19/176
Abstract: An encoder that encodes a video includes circuitry and memory connected to the circuitry. In operation, the circuitry: generates a prediction image on a per sub-block basis; and when a sub-block size is 4×4, applies a boundary smoothing process only to sub-block boundaries having boundary positions that are integer multiples of 8.
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Patent Agency Ranking
公开(公告)号：US12219137B2
公开(公告)日：2025-02-04
申请号：US18522760
申请日：2023-11-29
Inventor： Ryuichi Kanoh , Tadamasa Toma , Kiyofumi Abe , Takahiro Nishi
IPC: H04N19/157 , H04N19/12 , H04N19/154 , H04N19/61
Abstract: An encoder that encodes a video includes a processor and memory. Using the memory, the processor: derives a prediction error of an image included in the video, by subtracting a prediction image of the image from the image; determines a secondary transform basis based on a primary transform basis, the primary transform basis being a transform basis for a primary transform to be performed on the prediction error, the secondary transform basis being a transform basis for a secondary transform to be performed on a result of the primary transform; performs the primary transform on the prediction error using the primary transform basis; performs the secondary transform on a result of the primary transform using the secondary transform basis; performs quantization on a result of the secondary transform; and encodes a result of the quantization as data of the image.
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公开(公告)号：US20250039421A1
公开(公告)日：2025-01-30
申请号：US18912975
申请日：2024-10-11
Inventor： Takahiro NISHI , Tadamasa Toma , Kiyofumi Abe , Yusuke Kato
IPC: H04N19/44 , H04N19/119 , H04N19/176 , H04N19/70
Abstract: According to one aspect of the present disclosure, a decoder includes memory and a processor coupled to the memory. The processor is configured to split a current picture into tiles, generate a slice having a rectangular shape and located at a lower-right corner of the current picture, the slice including at least a part of a tile among the tiles, generate first information on a region of the slice with header information, the header information not including information identical to the first information, and decode the slice with the first information.
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公开(公告)号：US12206890B2
公开(公告)日：2025-01-21
申请号：US18433707
申请日：2024-02-06
Inventor： Chong Soon Lim , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Ru Ling Liao , Jing Ya Li , Tadamasa Toma , Takahiro Nishi , Kiyofumi Abe , Ryuichi Kanoh
IPC: H04N19/52
Abstract: An encoder which includes circuitry and memory. Using the memory, the circuitry generates a list which includes candidates for a first motion vector for a first partition. The list has a maximum list size and an order of the candidates, and at least one of the maximum list size or the order of the candidates is dependent on at least one of a partition size or a partition shape of the first partition. The circuitry selects the first motion vector from the candidates included in the list; encodes an index indicating the first motion vector among the candidates in the list into the bitstream based on the maximum list size; and generates the predicted image for the first partition using the first motion vector.
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公开(公告)号：US12206877B2
公开(公告)日：2025-01-21
申请号：US18511134
申请日：2023-11-16
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/176 , H04N19/105 , H04N19/423 , H04N19/517
Abstract: An encoder includes circuitry and memory. Using the memory, the circuitry performs prediction on an image. A motion vector predictor list used in the prediction includes a spatially neighboring motion vector predictor obtained from a block spatially neighboring a current block, and a spatially broad motion vector predictor obtained from a block positioned at any of a plurality of predetermined positions in a second range that is broader than a first range that spatially neighbors the current block. The plurality of predetermined positions are defined by a regular interval using the top-left of a current picture as a reference point.
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公开(公告)号：US12192561B2
公开(公告)日：2025-01-07
申请号：US18228051
申请日：2023-07-31
Inventor： Tadamasa Toma , Noritaka Iguchi , Takahiro Nishi , Hisaya Katou
IPC: H04N21/43 , H04H20/18 , H04H20/24 , H04H20/93 , H04H60/13 , H04N21/242 , H04N21/462 , H04N21/61 , H04N21/8547
Abstract: A transmitting method for transmitting contents using a broadcast wave and a communication path comprises: including content information in application control information when transmitting the contents using both the broadcast wave and the communication path, the content information being information for synchronizing a content transmitted by using the broadcast wave with a content transmitted by using the communication path at a reception side that receives the contents and being related to the content transmitted by using the communication path; and transmitting the application control information by using at least the broadcast wave in the broadcast wave and the communication path. As a result, a contents transmitting method is provided for enabling a quick access to contents through communication when the contents are reproduced by a combination of broadcast and communication on the receiving side.
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