Patents by Inventor Takeshi Tsukuba

Takeshi Tsukuba has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11882311
    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.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: January 23, 2024
    Assignee: SONY GROUP CORPORATION
    Inventor: Takeshi Tsukuba
  • Patent number: 11877008
    Abstract: There is provided an image processing apparatus and method that make it possible to suppress degradation of the encoding efficiency. In the case where primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, also secondary transform, which is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual, is skipped. The present disclosure can be applied, for example, to an image processing apparatus, an image encoding apparatus, an image decoding apparatus and so forth.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: January 16, 2024
    Assignee: SONY CORPORATION
    Inventor: Takeshi Tsukuba
  • Publication number: 20230421784
    Abstract: In a conventional art, an output layer set having no output layer is sometimes defined. Consequently, even if the decoder decodes a bit stream to obtain each layer in the output layer set without the output layer, there is no picture to be outputted. There is a possibility that such coded data causes the decoder expecting an output to operate unexpectedly. Output layer sets having the same configuration may be defined. Consequently, the amount of code pertaining to the output layer sets defined in an overlapping manner is redundant. According to an aspect of the present disclosure, a specification of a bit stream conformance pertaining to the output layer set prevents occurrence of an output layer set without an output layer and a redundant output layer set.
    Type: Application
    Filed: May 9, 2023
    Publication date: December 28, 2023
    Inventors: Takeshi Tsukuba, Tomohiro Ikai, Tomoyuki Yamamoto
  • Publication number: 20230362381
    Abstract: There is provided a terminal device capable of efficiently performing communication in a communication system in which a base station device and the terminal device communicate with each other. The terminal device that communicates with the base station device by using a plurality of aggregated cells recognizes that a serving cell is stopped in a first state, recognizes that the serving cell is started in a second state, and switches from the first state to the second state based on a received PDCCH.
    Type: Application
    Filed: July 21, 2023
    Publication date: November 9, 2023
    Inventors: Tomohiro IKAI, Takeshi TSUKUBA
  • Publication number: 20230291916
    Abstract: The present disclosure relates to an image processing device and method that allow reduction in coding efficiency to be suppressed. A pixel value of a chroma component is predicted by linear prediction from a pixel value of a reference image of a luma component whose pixel location is changed by using a filter, and a prediction image of the chroma component is generated. A chroma component of encoded data in which an image is encoded is decoded by using the generated prediction image. The filter is selected on a basis of information regarding a pixel location of the chroma component and information regarding a color format. The present disclosure is applicable, for example, to an image processing device, an image encoding device, an image decoding device, or the like.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 14, 2023
    Applicant: Sony Group Corporation
    Inventor: Takeshi TSUKUBA
  • Patent number: 11758140
    Abstract: There is provided a terminal device capable of efficiently performing communication in a communication system in which a base station device and the terminal device communicate with each other. The terminal device that communicates with the base station device by using a plurality of aggregated cells recognizes that a serving cell is stopped in a first state, recognizes that the serving cell is started in a second state, and switches from the first state to the second state based on a received PDCCH.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: September 12, 2023
    Assignee: Velos Media, LLC
    Inventors: Tomohiro Ikai, Takeshi Tsukuba
  • Patent number: 11695941
    Abstract: The present disclosure relates to an image processing device and method that allow reduction in coding efficiency to be suppressed. A pixel value of a chroma component is predicted by linear prediction from a pixel value of a reference image of a luma component whose pixel location is changed by using a filter, and a prediction image of the chroma component is generated. A chroma component of encoded data in which an image is encoded is decoded by using the generated prediction image. The filter is selected on a basis of information regarding a pixel location of the chroma component and information regarding a color format. The present disclosure is applicable, for example, to an image processing device, an image encoding device, an image decoding device, or the like.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: July 4, 2023
    Assignee: SONY GROUP CORPORATION
    Inventor: Takeshi Tsukuba
  • Publication number: 20230199218
    Abstract: Memory required during decoding is reduced. A video image decoding device (1) is equipped with main direction deriving means (1453A) that references a prediction mode definition DEFPM(1), and from a prediction mode number, derives a main direction of a prediction direction corresponding to a prediction mode, and a gradient deriver (1453B) that references a gradient definition table DEFANG(1), and derives a gradient of the prediction direction.
    Type: Application
    Filed: February 23, 2023
    Publication date: June 22, 2023
    Inventors: Tomoyuki YAMAMOTO, Tomohiro IKAI, Yukinobu YASUGI, Takeshi TSUKUBA
  • Patent number: 11683508
    Abstract: In a conventional art, an output layer set having no output layer is sometimes defined. Consequently, even if the decoder decodes a bit stream to obtain each layer in the output layer set without the output layer, there is no picture to be outputted. There is a possibility that such coded data causes the decoder expecting an output to operate unexpectedly. Output layer sets having the same configuration may be defined. Consequently, the amount of code pertaining to the output layer sets defined in an overlapping manner is redundant. According to an aspect of the present disclosure, a specification of a bit stream conformance pertaining to the output layer set prevents occurrence of an output layer set without an output layer and a redundant output layer set.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: June 20, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Takeshi Tsukuba, Tomohiro Ikai, Tomoyuki Yamamoto
  • Publication number: 20230179779
    Abstract: The present disclosure relates to an image processing device and method capable of suppressing an increase in load of decoding processing. A secondary transform identifier is set such that secondary transform is performed only in a case where information regarding a block size is equal to or less than a predetermined threshold value, secondary transform is performed on coefficient data derived from image data on the basis of the secondary transform identifier set, and the secondary transform identifier set is encoded and a bitstream is generated. The present disclosure can be applied, for example, to an image processing device, an image encoding device, an image decoding device, an information processing device, an electronic device, an image processing method, an information processing method, and the like.
    Type: Application
    Filed: May 1, 2020
    Publication date: June 8, 2023
    Applicant: Sony Group Corporation
    Inventor: Takeshi TSUKUBA
  • Patent number: 11665367
    Abstract: There is provided an image processing apparatus and a method capable of achieving reduction of a drop of coding efficiency (improvement of coding efficiency). Coded data is decoded to generate coefficient data. An inverse orthogonal transform is performed for the generated coefficient data according to an inverse orthogonal transform type controlled on the basis of a coding parameter. For example, the present disclosure is applicable to an image processing apparatus, an image coding apparatus, an image decoding apparatus, or the like.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 30, 2023
    Assignee: SONY CORPORATION
    Inventor: Takeshi Tsukuba
  • Publication number: 20230117669
    Abstract: There is provided an image processing apparatus and method that make it possible to suppress degradation of the encoding efficiency. In the case where primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, also secondary transform, which is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual, is skipped. The present disclosure can be applied, for example, to an image processing apparatus, an image encoding apparatus, an image decoding apparatus and so forth.
    Type: Application
    Filed: December 15, 2022
    Publication date: April 20, 2023
    Applicant: SONY CORPORATION
    Inventor: Takeshi TSUKUBA
  • Patent number: 11627337
    Abstract: Memory required during decoding is reduced. A video image decoding device (1) is equipped with main direction deriving means (1453A) that references a prediction mode definition DEFPM(1), and from a prediction mode number, derives a main direction of a prediction direction corresponding to a prediction mode, and a gradient deriver (1453B) that references a gradient definition table DEFANG(1), and derives a gradient of the prediction direction.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: April 11, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi, Takeshi Tsukuba
  • Publication number: 20230045106
    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.
    Type: Application
    Filed: January 22, 2021
    Publication date: February 9, 2023
    Applicant: Sony Group Corporation
    Inventor: Takeshi TSUKUBA
  • Publication number: 20230007255
    Abstract: The present disclosure relates to an image processing device and method for enabling control of a value of a quantization parameter within a desired range. A quantization parameter is corrected on the basis of a parameter regarding adaptive color transform and further correcting the quantization parameter on the basis of a parameter regarding transform skip, and coefficient data of an image to be encoded is quantized using a corrected quantization parameter that is the quantization parameter that has been corrected. 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.
    Type: Application
    Filed: December 18, 2020
    Publication date: January 5, 2023
    Applicant: Sony Group Corporation
    Inventor: Takeshi TSUKUBA
  • Publication number: 20230007265
    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.
    Type: Application
    Filed: November 27, 2020
    Publication date: January 5, 2023
    Applicant: Sony Group Corporation
    Inventor: Takeshi TSUKUBA
  • Patent number: 11546635
    Abstract: There is provided an image processing apparatus and method that make it possible to suppress degradation of the encoding efficiency. In the case where primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, also secondary transform, which is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual, is skipped. The present disclosure can be applied, for example, to an image processing apparatus, an image encoding apparatus, an image decoding apparatus and so forth.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: January 3, 2023
    Assignee: SONY CORPORATION
    Inventor: Takeshi Tsukuba
  • Publication number: 20220417499
    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.
    Type: Application
    Filed: December 10, 2020
    Publication date: December 29, 2022
    Applicant: Sony Group Corporation
    Inventors: Mitsuru KATSUMATA, Mitsuhiro HIRABAYASHI, Masaru IKEDA, Yoichi YAGASAKI, Yuji FUJIMOTO, Takeshi TSUKUBA
  • Publication number: 20220408092
    Abstract: There is provided a terminal device capable of efficiently performing communication in a communication system in which a base station device and the terminal device communicate with each other. The terminal device that communicates with the base station device by using a plurality of aggregated cells recognizes that a serving cell is stopped in a first state, recognizes that the serving cell is started in a second state, and switches from the first state to the second state based on a received PDCCH.
    Type: Application
    Filed: August 29, 2022
    Publication date: December 22, 2022
    Inventors: Tomohiro IKAI, Takeshi TSUKUBA
  • Patent number: 11533471
    Abstract: An image processing apparatus and an image processing method make it possible to suppress increase of the load of template matching. For each of motion vector candidates of accuracy rougher than accuracy of a motion vector candidate list, template matching between a template of a current block and a template of a reference block is performed to derive a cost, and elements of the motion vector candidate list are sorted on the basis of the derived costs of the motion vector candidates. Alternatively, for each of motion vector candidates of accuracy rougher than accuracy of a motion vector candidate list, template matching between a template of a current block and a template of a search point is performed to derive a cost, and a modification motion vector candidate is derived on the basis of the derived costs of the motion vector candidates.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: December 20, 2022
    Assignee: SONY CORPORATION
    Inventor: Takeshi Tsukuba