公开(公告)号：US11350154B2

公开(公告)日：2022-05-31

申请号：US17161852

申请日：2021-01-29

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Noritaka Iguchi ,  Tadamasa Toma

IPC: H04N21/43 ,  H04N21/2389 ,  H04N21/8547 ,  H04N21/2365 ,  H04N21/845 ,  H04N21/434 ,  H04N21/2343 ,  H04N21/2381 ,  H04N21/242 ,  H04N21/633 ,  H04N21/6332 ,  H04N21/83

Abstract: A receiving method of receiving a first data unit in which data making up an encoded stream is stored and the first data unit stores a plurality of second data units. The receiving method includes: receiving the first data unit, first time information indicating a presentation time of the first data unit, second time information indicating, together with the first time information, a presentation time or a decoding time of each of the plurality of second data units, and identification information; calculating the presentation time or the decoding time of each of the plurality of second data units using the first time information and the second time information; and correcting the presentation time or the decoding time of each of the plurality of second data units based on the identification information.

公开(公告)号：US11350092B2

公开(公告)日：2022-05-31

申请号：US16942630

申请日：2020-07-29

Applicant: Panasonic Intellectual Property Corporation of America

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: H04N19/52 ,  H04N19/119 ,  H04N19/137 ,  H04N19/176

Abstract: Provided is an encoder which includes circuitry and memory. Using the memory, the circuitry splits an image block into a plurality of partitions, obtains a prediction image for a partition, and encodes the image block using the prediction image. When the partition is not a non-rectangular partition, the circuitry obtains (i) a first prediction image for the partition, (ii) a gradient image for the first prediction image, and (iii) a second prediction image as the prediction image using the first prediction image and the gradient image. When the partition is a non-rectangular partition, the circuitry obtains the first prediction image as the prediction image without using the gradient image.

公开(公告)号：US11330265B2

公开(公告)日：2022-05-10

申请号：US16751666

申请日：2020-01-24

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/126 ,  H04N19/12 ,  H04N19/176

Abstract: An encoder which encodes a current block to be encoded in an image includes: a transformer which performs a primary transform from residuals of the current block to primary coefficients, determines whether to apply a secondary transform to the current block, and performs the secondary transform from the primary coefficients to secondary coefficients when the secondary transform is applied; a quantizer which calculates quantized primary coefficients by performing a first quantization on the primary coefficients when a secondary transform is not applied, and calculates quantized secondary coefficients by performing a second quantization different from the first quantization on the secondary coefficients when the secondary transform is applied; and an entropy encoder which generates an encoded bitstream by encoding either quantized primary coefficients or quantized secondary coefficients.

公开(公告)号：US11323751B2

公开(公告)日：2022-05-03

申请号：US16423756

申请日：2019-05-28

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Noritaka Iguchi ,  Tadamasa Toma

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

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.

公开(公告)号：US11297322B2

公开(公告)日：2022-04-05

申请号：US17141849

申请日：2021-01-05

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Kiyofumi Abe ,  Takahiro Nishi ,  Takashi Hashimoto ,  Tadamasa Toma

IPC: H04N19/13 ,  H04N19/157 ,  H04N19/91 ,  H04N19/18

Abstract: An encoder includes memory and circuitry accessible to the memory. The circuitry accessible to the memory: switches whether or not to apply arithmetic encoding to a binary data string in which image information has been binarized; binarizes frequency transform coefficient information according to different binarization formats between when arithmetic encoding is applied to the binary data string and when arithmetic encoding is not applied to the binary data string; and binarizes a part or the entirety of prediction parameter information according to a binarization format which is common between when arithmetic encoding is applied to the binary data string and when arithmetic encoding is not applied to the binary data string.

公开(公告)号：US11290745B2

公开(公告)日：2022-03-29

申请号：US15996710

申请日：2018-06-04

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Tadamasa Toma ,  Takahiro Nishi ,  Kengo Terada ,  Yui Koashi

IPC: H04N19/597 ,  G06T9/00 ,  H04N19/436 ,  H04N19/503 ,  H04N19/593

Abstract: Provided is a three-dimensional data encoding method capable of providing random access functionality for encoded three-dimensional data. The three-dimensional data encoding method is a three-dimensional data encoding method for encoding three-dimensional data, the method including: dividing the three-dimensional data into first processing units, each being a random access unit and being associated with three-dimensional coordinates; and encoding each of the first processing units to generate encoded three-dimensional data.

公开(公告)号：US11272258B2

公开(公告)日：2022-03-08

申请号：US16892774

申请日：2020-06-04

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Noritaka Iguchi ,  Tadamasa Toma ,  Hisaya Katou

IPC: H04N7/20 ,  H04N21/643 ,  H04L69/22 ,  H04L61/5007 ,  H04N21/61 ,  H04N21/845 ,  H04N21/242 ,  H04N21/43 ,  H04L69/04 ,  H04N21/8547 ,  H04L69/28 ,  H04L69/32 ,  H04J3/06

Abstract: A transmission method includes: generating one or more transfer frames that each store one or more streams used for content transfer; and transmitting the one or more generated frames through broadcast, each of the one or more streams storing one or more second transfer units, each of the one or more second transfer units storing one or more first transfer units, and each of the one or more first transfer units storing one or more Internet Protocol (IP) packets. In at least one stream among the one or more streams, each of the first transfer units positioned at a head contains reference clock information indicating time used for reproduction of the content.

公开(公告)号：US11245913B2

公开(公告)日：2022-02-08

申请号：US16839850

申请日：2020-04-03

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/31 ,  H04N19/117 ,  H04N19/172

Abstract: An encoder which encodes a video including a plurality of pictures includes circuitry and memory. Using the memory, the circuitry performs: encoding a first picture among the plurality of pictures; and performing (i) a first operation for encoding a parameter set for a second picture which follows the first picture in coding order among the plurality of pictures after encoding the first picture, and encoding the second picture after encoding the parameter set, or (ii) a second operation for encoding the second picture without encoding the parameter set after encoding the first picture. The circuitry performs the first operation when the second picture is a determined picture, in the performing of the first operation or the second operation.

公开(公告)号：US11223844B2

公开(公告)日：2022-01-11

申请号：US16572323

申请日：2019-09-16

Applicant: Panasonic Intellectual Property Corporation of America

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: H04N19/51 ,  H04N19/176 ,  H04N19/182

Abstract: An image decoder includes circuitry and a memory, wherein the circuitry, in operation, performs a boundary smoothing operation along a boundary between a first partition having a triangular shape and a second partition having a triangular shape that are split from an image block. The boundary smoothing operation includes: first-deriving a first motion vector for the first partition from a first set of motion vector candidates; second-deriving a second motion vector for the second partition from a second set of motion vector candidates; first-predicting first values of a set of pixels of the first partition along the boundary, using the first motion vector; second-predicting second values of the set of pixels of the first partition along the boundary, using the second motion vector; weighting the first values and the second values; and decoding the first partition using the weighted first values and the weighted second values.

公开(公告)号：US11223825B2

公开(公告)日：2022-01-11

申请号：US16997147

申请日：2020-08-19

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N11/02 ,  H04N19/119 ,  H04N19/176 ,  H04N19/184 ,  H04N19/60

Abstract: A decoder that includes: circuitry; and a memory coupled to the circuitry. The circuitry, in operation: determines whether or not a first splitting of splitting a block into three sub blocks in a first direction parallel to a first side of the block is available by determining a magnitude relation between a size of a second side of the block and a first value, the second side being different from the first side, the first side being a longer side of the block; when the first splitting is available, parses, from a bitstream, a split direction parameter indicative of a splitting direction; splits the block into a plurality of sub blocks in a direction indicated by the split direction parameter; and decodes the plurality of sub blocks.