公开(公告)号：US20240171746A1

公开(公告)日：2024-05-23

申请号：US18430668

申请日：2024-02-02

Applicant: Sony Group Corporation

Inventor： Takeshi TSUKUBA

IPC: H04N19/13 ,  H04N19/157 ,  H04N19/70

CPC classification number: H04N19/13 ,  H04N19/157 ,  H04N19/70

Abstract: A predetermined context variable is assigned, according to a device, system, or method, to a first bin of a bin sequence obtained by binarizing an adaptive orthogonal transform identifier indicating a mode of adaptive orthogonal transform in image encoding and context encoding is performed for the first bin of the bin sequence. Furthermore, a predetermined context variable is assigned to a first bin of a bin sequence obtained by binarizing an adaptive orthogonal transform identifier indicating a mode of inverse adaptive orthogonal transform in image decoding and context decoding is performed for the first bin of the bin sequence.

公开(公告)号：US20240121438A1

公开(公告)日：2024-04-11

申请号：US18540952

申请日：2023-12-15

Applicant: Sony Group Corporation

Inventor： Takeshi TSUKUBA

IPC: H04N19/61 ,  H04N19/124 ,  H04N19/18 ,  H04N19/46

CPC classification number: H04N19/61 ,  H04N19/124 ,  H04N19/18 ,  H04N19/46

Abstract: The present disclosure relates to an image processing device and method capable of reducing an increase in processing delay.
A data path of a one-dimensional input signal array of residual data is switched in a forward direction or a reverse direction, and matrix operation of one-dimensional orthogonal transform is performed on the one-dimensional input signal array input via the switched data path. The present disclosure can be applied to, for example, an image processing device, an image coding device, an image decoding device, a transmission device, a reception device, a transmission/reception device, an information processing device, an imaging device, a regeneration device, an electronic apparatus, an image processing method, an information processing method, or the like.

公开(公告)号：US20230007265A1

公开(公告)日：2023-01-05

申请号：US17778002

申请日：2020-11-27

Applicant: Sony Group Corporation

Inventor： Takeshi TSUKUBA

IPC: H04N19/132 ,  H04N19/60 ,  H04N19/46 ,  H04N19/103 ,  H04N19/18 ,  H04N19/124 ,  H04N19/176

Abstract: In encoding an image, a transform skip flag that is flag information indicating, for each component, whether or not to skip transform processing of transforming a residual between an image and a predicted image of the image into coefficient data is generated, the transform skip flag generated is encoded, coded data of the transform skip flag is generated, and a bit stream including the generated coded data of the transform skip flag is generated. The present encoding/decoding can be applied to, for example, an image processing device, an image encoding device, an image decoding device, a transmission device, a reception device, a transmission-reception device, an information processing device, an imaging device, a reproduction device, a bit stream generation method, a coefficient data generation method, a quantization coefficient generation method, or the like.

公开(公告)号：US20240236323A1

公开(公告)日：2024-07-11

申请号：US18613855

申请日：2024-03-22

Applicant: Sony Group Corporation

Inventor： Takeshi TSUKUBA

IPC: H04N19/13 ,  H04N19/157 ,  H04N19/70

CPC classification number: H04N19/13 ,  H04N19/157 ,  H04N19/70

Abstract: A predetermined context variable is assigned, according to a device, system, or method, to a first bin of a bin sequence obtained by binarizing an adaptive orthogonal transform identifier indicating a mode of adaptive orthogonal transform in image encoding and context encoding is performed for the first bin of the bin sequence. Furthermore, a predetermined context variable is assigned to a first bin of a bin sequence obtained by binarizing an adaptive orthogonal transform identifier indicating a mode of inverse adaptive orthogonal transform in image decoding and context decoding is performed for the first bin of the bin sequence.

公开(公告)号：US20230045106A1

公开(公告)日：2023-02-09

申请号：US17782173

申请日：2021-01-22

Applicant: Sony Group Corporation

Inventor： Takeshi TSUKUBA

IPC: H04N19/186 ,  G06T11/60 ,  G06T11/00 ,  G06T5/00

Abstract: The present disclosure relates to an image processing apparatus and method capable of suppressing an increase in load of inverse adaptive color transform processing while suppressing an increase in distortion of coefficient data subjected to inverse adaptive color transform.
The coefficient data subjected to the lossless adaptive color transform is clipped at a level based on a bit depth of the coefficient data, and the coefficient data clipped at the level is subjected to lossless inverse adaptive color transform. The present disclosure may be applied to, for example, an image processing apparatus, an image coding device, an image decoding device, a transmission device, a reception device, a transmission/reception device, an information processing device, an imaging device, a reproduction device, an electronic device, an image processing method, an information processing method, or the like.

公开(公告)号：US20220417499A1

公开(公告)日：2022-12-29

申请号：US17781053

申请日：2020-12-10

Applicant: Sony Group Corporation

Inventor： Mitsuru KATSUMATA ,  Mitsuhiro HIRABAYASHI ,  Masaru IKEDA ,  Yoichi YAGASAKI ,  Yuji FUJIMOTO ,  Takeshi TSUKUBA

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/182 ,  H04N19/46

Abstract: An image of a fixed subpicture being a subpicture in which a position of a reference pixel is fixed in a time direction, in subpictures that are partial areas obtained by dividing a picture, is encoded with a resolution variable in a time direction. Furthermore, coded data obtained by encoding an image of a fixed subpicture being a subpicture in which a position of a reference pixel is fixed in a time direction, in subpictures that are partial areas obtained by dividing a picture, with a resolution variable in a time direction is decoded to generate the image of the resolution of the fixed subpicture. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, an information processing apparatus, an image processing method, an information processing method, or the like.

公开(公告)号：US20220394256A1

公开(公告)日：2022-12-08

申请号：US17775583

申请日：2020-12-11

Applicant: Sony Group Corporation

Inventor： Takeshi TSUKUBA

IPC: H04N19/12 ,  H04N19/157 ,  H04N19/156 ,  H04N19/186 ,  H04N19/46 ,  H04N19/124 ,  H04N19/61 ,  H04N19/625

Abstract: The present disclosure relates to an image processing device and method for enabling suppression of an increase in encoding load.
An encoding mode of encoding of an image is set by setting a transform type with a minimum encoding cost in a non-joint chrominance encoding mode as a transform type in a joint chrominance encoding mode, and deriving an encoding cost in the joint chrominance encoding mode. The present disclosure can be applied to, for example, an image processing device, an image encoding device, an information processing device, an electronic device, an image processing method, an information processing method, or the like.

公开(公告)号：US20220256151A1

公开(公告)日：2022-08-11

申请号：US17628232

申请日：2020-08-21

Applicant: Sony Group Corporation

Inventor： Takeshi TSUKUBA

IPC: H04N19/122 ,  H04N19/176 ,  H04N19/124

Abstract: The present disclosure relates to an image processing device and method capable of curbing an increase in a coding/decoding load.
A maximum transform block size in a lossless coding mode is set to the same size as a transform coefficient group corresponding to a maximum transform block size in a non-lossless coding mode. The present disclosure can be applied to, for example, an image processing device, an image coding device, an image decoding device, a transmitting device, a receiving device, a transmitting/receiving device, an information processing device, an imaging device, a reproducing device, an electronic apparatus, an image processing method, an information processing method, and the like.

公开(公告)号：US20250039379A1

公开(公告)日：2025-01-30

申请号：US18911275

申请日：2024-10-10

Applicant: Sony Group Corporation

Inventor： Takeshi TSUKUBA

IPC: H04N19/12 ,  H04N19/186 ,  H04N19/70 ,  H04N19/96

Abstract: The present disclosure relates to an image processing device and method for enabling suppression of reduction in encoding efficiency. Encoding of secondary transform control information that is control information related to secondary transform is omitted in a case where a transform skip flag of at least one component among valid components in image encoding is true, and the secondary transform control information is encoded in a case where the transform skip flags of all the components among the valid components in image encoding are false. The present disclosure can be applied to, for example, an image processing device, an image encoding device, an image decoding device, a transmission device, a reception device, a transmission/reception device, an information processing device, an imaging device, a reproduction device, an electronic device, an image processing method, an information processing method, or the like.

公开(公告)号：US20240357129A1

公开(公告)日：2024-10-24

申请号：US18682453

申请日：2022-09-14

Applicant: Sony Group Corporation

Inventor： Takeshi TSUKUBA

IPC: H04N19/159 ,  H04N19/172 ,  H04N19/46

CPC classification number: H04N19/159 ,  H04N19/172 ,  H04N19/46

Abstract: The present disclosure relates to an image processing apparatus and method that enable a specification of a bitstream to correspond to a profile more reliably.
In a case where a predetermined condition is satisfied, a moving image as an encoding target is encoded with a picture type of all pictures set as an I-picture. Furthermore, a bitstream of a moving image as a decoding target is decoded, and it is checked whether the picture type of all pictures of the moving image is the I-picture in the bitstream in a case where a predetermined condition is satisfied. The present disclosure can be applied to, for example, an image processing apparatus, an image processing method, or the like.