公开(公告)号：US12206890B2

公开(公告)日：2025-01-21

申请号：US18433707

申请日：2024-02-06

Applicant: Panasonic Intellectual Property Corporation of America

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.

公开(公告)号：US12206877B2

公开(公告)日：2025-01-21

申请号：US18511134

申请日：2023-11-16

Applicant: Panasonic Intellectual Property Corporation of America

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.

公开(公告)号：US12192561B2

公开(公告)日：2025-01-07

申请号：US18228051

申请日：2023-07-31

Applicant: Panasonic Intellectual Property Corporation of America

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.

公开(公告)号：US12192531B2

公开(公告)日：2025-01-07

申请号：US18479663

申请日：2023-10-02

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Jing Ya Li ,  Han Boon Teo ,  Chong Soon Lim ,  Hai Wei Sun ,  Che-Wei Kuo ,  Chu Tong Wang ,  Tadamasa Toma ,  Takahiro Nishi ,  Kiyofumi Abe ,  Yusuke Kato

IPC: H04N19/82 ,  H04N19/107 ,  H04N19/176 ,  H04N19/186

Abstract: A decoder includes memory and a processor coupled to the memory and configured to: generate a first coefficient value by applying a CCALF (cross component adaptive loop filtering) process to a first reconstructed image sample of a luma component; clip the first coefficient value such that the clipped first coefficient value is within a first range from −27 to 27−1; generate a second coefficient value by applying an ALF (adaptive loop filtering) process to a second reconstructed image sample of a chroma component; clip the second coefficient value such that the clipped second coefficient value is within a second range different from the first range; generate a third coefficient value by adding the clipped first coefficient value to the clipped second coefficient value; and generate a third reconstructed image sample of the chroma component using the third coefficient value.

公开(公告)号：US12184887B2

公开(公告)日：2024-12-31

申请号：US18473027

申请日：2023-09-22

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Jing Ya Li ,  Chong Soon Lim ,  Sughosh Pavan Shashidhar ,  Ru Ling Liao ,  Hai Wei Sun ,  Han Boon Teo ,  Kiyofumi Abe ,  Tadamasa Toma ,  Takahiro Nishi

IPC: H04N19/00 ,  H04N19/119 ,  H04N19/176 ,  H04N19/513 ,  H04N19/96

Abstract: An encoder includes circuitry and memory connected to the circuitry. In operation, the circuitry corrects a base motion vector using a correction value in a fixed direction; and encodes a current partition by using the corrected base motion vector corrected. The correction value is specified by an index indicating one of correction values included in a table. The table is selected from among a plurality of tables, wherein the correction values in one of the plurality of tables have different increments from the correction values in another one of the plurality of tables.

公开(公告)号：US12160614B2

公开(公告)日：2024-12-03

申请号：US17750950

申请日：2022-05-23

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Virginie Drugeon ,  Tadamasa Toma ,  Takahiro Nishi ,  Kiyofumi Abe ,  Yusuke Kato

IPC: H04N19/70

Abstract: An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry: encodes a video using (i) a decoding parameter set (DPS) which is identified based on presence of the DPS in a bitstream and (ii) a sequence parameter set (SPS) which is identified based on an identifier for the SPS.

公开(公告)号：US12143584B2

公开(公告)日：2024-11-12

申请号：US17508289

申请日：2021-10-22

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Ryuichi Kanoh ,  Tadamasa Toma ,  Kiyofumi Abe ,  Takahiro Nishi

IPC: H04N19/12 ,  H04N19/14 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/65 ,  H04N19/119

Abstract: A decoder comprising a processor and a memory, wherein the processor, using the memory, inverse quantizes data corresponding to a current block of an image performs an inverse secondary transform, using one candidate of the inverse secondary transform selected from candidates of the inverse secondary transform, on a result of the inverse quantization to generate second transform coefficients, the candidates of the inverse secondary transform including transform bases for the inverse secondary transform and a skip of the inverse secondary transform and performs an inverse primary transform, using one candidate of the inverse primary transform selected from candidates of the inverse primary transform, on the second transform coefficients or the result of the inverse quantization to generate first transform coefficients, the candidates of the inverse primary transform including transform bases for the inverse primary transform.

公开(公告)号：US12132886B2

公开(公告)日：2024-10-29

申请号：US17844936

申请日：2022-06-21

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takahiro Nishi ,  Tadamasa Toma ,  Kiyofumi Abe

IPC: H04N19/105 ,  H04N19/15

CPC classification number: H04N19/105 ,  H04N19/15

Abstract: An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry switches between storing and not storing of a decoded picture buffer (DPB) parameter related to a DPB in a common header shared between layers in layer groups each including at least one output layer, according to whether or not all the layer groups in a bitstream each include only one layer.

公开(公告)号：US12120349B2

公开(公告)日：2024-10-15

申请号：US17889580

申请日：2022-08-17

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Ryuichi Kanoh ,  Tadamasa Toma ,  Kiyofumi Abe ,  Takahiro Nishi ,  Masato Ohkawa ,  Hideo Saitou

IPC: H04N11/02 ,  H04N19/124 ,  H04N19/176 ,  H04N19/44 ,  H04N19/60

CPC classification number: H04N19/60 ,  H04N19/124 ,  H04N19/176 ,  H04N19/45

Abstract: An encoder which transforms a current block to be encoded in an image to encode the current block includes circuitry and memory. The circuitry, using the memory: determines a plurality of first transform basis candidates and transforms the current block using a transform basis included in the plurality of first transform basis candidates determined, when the current block has a first size; and determines one or more second transform basis candidates different from the plurality of first transform basis candidates and transforms the current block using a transform basis included in the one or more second transform basis candidates determined, when the current block has a second size larger than the first size.

公开(公告)号：US12108092B2

公开(公告)日：2024-10-01

申请号：US18226930

申请日：2023-07-27

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Noritaka Iguchi ,  Tadamasa Toma

IPC: H04N21/231 ,  H04H60/40 ,  H04J3/06 ,  H04L65/611 ,  H04N21/234 ,  H04N21/235 ,  H04N21/2365 ,  H04N21/43 ,  H04N21/434 ,  H04N21/63 ,  H04N21/845

CPC classification number: H04N21/231 ,  H04H60/40 ,  H04J3/0661 ,  H04L65/611 ,  H04N21/234 ,  H04N21/235 ,  H04N21/2365 ,  H04N21/43072 ,  H04N21/4347 ,  H04N21/631 ,  H04N21/8456

Abstract: A transmitting method stores data making up a coded stream into a predetermined data unit and transmits the stored data in the predetermined data unit. The transmitting method further generates presentation time information indicating a presentation time of the predetermined data unit, based on reference time information received from an external source; and transmits the predetermined data unit, first control information which includes the generated presentation time information, and second control information which includes leap second information indicating whether or not the presentation time information is a time that is before a leap second adjustment. A receiving method receives the predetermined data unit, first control information, and second control information; and reproduces the received predetermined data unit based on the first and second control information that are received.