公开(公告)号：US11166032B2

公开(公告)日：2021-11-02

申请号：US17080141

申请日：2020-10-26

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Alec Hodgkinson ,  Luca Rigazio ,  Takahiro Nishi ,  Kiyofumi Abe ,  Ryuichi Kanoh ,  Tadamasa Toma

IPC: H04N19/184 ,  H04N19/46 ,  H04N19/85 ,  H04N19/136 ,  H04N19/124 ,  G06N3/08

Abstract: An encoder includes circuitry and memory. Using the memory, the circuitry: encodes an original image and decodes the original image encoded, to generate a first bitstream and a local decoded image; encodes supplemental information and decodes the encoded supplemental information, to generate a second bitstream and local decoded supplemental information; inputs data based on the local decoded image and the local decoded supplemental information to a post processing network which is a neural network, to cause a reconstructed image to be output from the post processing network, the reconstructed image corresponding to the original image and being to be used to encode a following original image which follows the original image; and concatenates the first bitstream and the second bitstream to generate a concatenated bitstream.

公开(公告)号：US11153596B2

公开(公告)日：2021-10-19

申请号：US16696249

申请日：2019-11-26

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/52 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186

Abstract: Provided is an encoder that achieves further improvement. The encoder includes processing circuitry and memory. Using the memory, the processing circuitry: obtains two prediction images from two reference pictures; derives a luminance gradient value of each pixel position in each of the two prediction images; derives a luminance local motion estimation value of each pixel position in a current block; generates a luminance final prediction image using a luminance value and the luminance gradient value in each of the two prediction images, and the luminance local motion estimation value of the current block; and generates a chrominance final prediction image using at least one of the luminance gradient value of each of the two prediction images or the luminance local motion estimation value of the current block, and chrominance of each of the two prediction images.

公开(公告)号：US11134270B2

公开(公告)日：2021-09-28

申请号：US16194586

申请日：2018-11-19

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/597 ,  H04N19/159 ,  H04N5/00 ,  H04N19/46 ,  H04N19/176 ,  G06T5/00 ,  H04N19/85

Abstract: An encoder capable of properly handling an image to be encoded or decoded includes processing circuitry and memory connected to the processing circuitry. Using the memory, the processing circuitry: obtains parameters including at least one of (i) one or more parameters related to a first process for correcting distortion in an image captured with a wide angle lens and (ii) one or more parameters related to a second process for stitching a plurality of images; generates an encoded image by encoding a current image to be processed that is based on the image or the plurality of images; and writes the parameters into a bitstream including the encoded image.

公开(公告)号：US11134260B2

公开(公告)日：2021-09-28

申请号：US16860367

申请日：2020-04-28

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/51 ,  H04N19/433

Abstract: An encoder that encodes a picture to generate a coded stream includes: circuitry and a memory coupled to the circuitry. The circuitry performs, using the memory: generating a prediction image of a current block included in a current picture by referring to a first region included in a reference picture different from the current picture; operating a bi-directional optical flow process to correct the prediction image by referring to a second region included in the first region, and not operating the bi-directional optical flow process in response to the second region not being included in the first region; and encoding the current block based on the prediction image.

公开(公告)号：US11128928B2

公开(公告)日：2021-09-21

申请号：US16558466

申请日：2019-09-03

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Noritaka Iguchi ,  Tadamasa Toma ,  Hisaya Katou

IPC: H04N21/643 ,  H04N21/43 ,  H04L7/00 ,  H04N21/236 ,  H04N21/2381 ,  H04N21/242 ,  H04N21/262 ,  H04N21/438 ,  H04N21/61

Abstract: A transmission method includes generating one or more frames for content transfer using IP (Internet Protocol) packets, and transmitting the one or more generated frames by broadcast. Each of the one or more frames contains a plurality of second transfer units, each of the plurality of second transfer units contains one or more first transfer units, and each of the one or more first transfer units contains at least one of the IP packets. An object IP packet of the IP packets which is stored in a first transfer unit positioned at a head in the one or more frames contains reference clock information that indicates time for reproduction of the content in data structure different from data structure of an MMT (MPEG Media Transport) packet, and header compression processing on the object IP packet is omitted.

公开(公告)号：US11128883B2

公开(公告)日：2021-09-21

申请号：US16799315

申请日：2020-02-24

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/52 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/59

Abstract: Provided is an encoder includes: circuitry; and memory, in which the circuitry: determines which mode is used to perform a prediction process, among modes including a first mode in which the prediction process is performed based on a motion vector of each block in a video and a second mode in which the prediction process is performed based on a motion vector of each sub-block obtained by splitting the block; when the prediction process is performed in the first mode, determines whether to perform a correction process on a prediction image using a spatial gradient of pixel values in the prediction image obtained by performing the prediction process, and performs the correction process when it is determined to perform the correction process; and when the prediction process is performed in the second mode, does not perform the correction process.

公开(公告)号：US11127169B2

公开(公告)日：2021-09-21

申请号：US16211910

申请日：2018-12-06

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu Sugio ,  Takahiro Nishi ,  Tadamasa Toma ,  Toru Matsunobu ,  Satoshi Yoshikawa ,  Tatsuya Koyama

IPC: G06T9/40 ,  G06T17/00 ,  G06T9/00 ,  G06T15/08

Abstract: A three-dimensional data encoding method includes: extracting, from first three-dimensional data, second three-dimensional data having an amount of a feature greater than or equal to a threshold; and encoding the second three-dimensional data to generate first encoded three-dimensional data. For example, the three-dimensional data encoding method may further include encoding the first three-dimensional data to generate the second encoded three-dimensional data.

公开(公告)号：US11109031B2

公开(公告)日：2021-08-31

申请号：US16240055

申请日：2019-01-04

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takahiro Nishi ,  Tadamasa Toma

IPC: H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/126 ,  H04N19/176 ,  H04N19/137 ,  H04N19/517 ,  H04N19/119

Abstract: An image decoder includes: a processor; and a memory. Using the memory, the processor obtains motion vectors of sub-blocks obtained by splitting a current frame; determines, for each of processing blocks obtained by splitting the current frame, quantization control to be performed on the processing block; and inversely quantizes each of the processing blocks by the quantization control determined for the processing block.

公开(公告)号：US11102512B2

公开(公告)日：2021-08-24

申请号：US17023968

申请日：2020-09-17

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/96 ,  H04N19/593 ,  H04N19/44 ,  H04N19/176

Abstract: An encoder includes circuitry and memory. The circuitry, using the memory: prohibits a first splitting method when arrangement and shapes of blocks obtained by splitting a first block multiple times by the first splitting method are identical to arrangement and shapes of blocks obtained by splitting the first block multiple times by a second splitting method different from the first splitting method, and when scan order of the blocks obtained by the first splitting method is identical to scan order of the blocks obtained by the second splitting method; and encodes the first block.

公开(公告)号：US11064200B2

公开(公告)日：2021-07-13

申请号：US16574728

申请日：2019-09-18

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/122 ,  H04N19/103 ,  H04N19/176 ,  H04N19/513

Abstract: An encoding apparatus includes: a circuit; and a memory. The circuit, using the memory: writes a first parameter that specifies an arrangement order for a plurality of parameters which includes a second parameter, into a header; writes a second parameter for a block into a bitstream according to the arrangement order wherein the second parameter, when positioned earlier in the arrangement order than later in the arrangement order, is written with less bits; and performs encoding operation for a block using the second parameter.