Patents by Inventor Takefumi Nagumo

Takefumi Nagumo 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).

  • Publication number: 20240048779
    Abstract: The present disclosure relates to an information processing device and an information processing method capable of achieving code quantity control while securely retaining some of pixel values of sensing data. Whether or not each of pixel values of sensing data is a reserved word that is a predetermined value determined beforehand is determined. A flag map that indicates a position of a reserved word pixel that is a pixel having the reserved word as a pixel value and non-reserved word data that includes a pixel value of a non-reserved word pixel that is a pixel other than the reserved word pixel are generated. The generated flag map is subjected to lossless coding to generate a flag stream. The generated non-reserved word data is coded to generate a pixel stream. For example, the present disclosure is applicable to an information processing device, an image processing device, an electronic apparatus, an information processing method, an image processing method, a program, or the like.
    Type: Application
    Filed: December 24, 2021
    Publication date: February 8, 2024
    Inventors: Takefumi Nagumo, Takuya Kitamura, Sinsuke Hishinuma
  • Patent number: 11765468
    Abstract: The present disclosure relates to an image processing device and a method thereof, an imaging element, and an imaging device in which a signal value deviation generated through encoding and decoding of an amplified signal group can be restrained. Adaptive processing is executed on an image in which signal amplification has been executed, and the resultant image is encoded. For example, an offset value that is randomly set within a value range that depends on a gain value of the signal amplification executed on the image is added to each pixel value of the image, and then, the resultant image is encoded. The present disclosure is applicable to an image processing device, an image encoding device, an image decoding device, an imaging element, or an imaging device, for example.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: September 19, 2023
    Assignee: SONY CORPORATION
    Inventors: Toshinori Ihara, Takefumi Nagumo
  • Patent number: 11758298
    Abstract: The present disclosure relates to image processing apparatus and method that can suppress the increase in the load of processing multi-wavelength data. A subject is imaged to generate multi-wavelength data that is image data including four or more wavelength components, the generated multi-wavelength data is encoded to generate encoded data of the multi-wavelength data, and the generated encoded data is transmitted. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, an imaging element, an imaging apparatus, or the like.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: September 12, 2023
    Assignee: SONY CORPORATION
    Inventors: Takefumi Nagumo, Toshinori Ihara, Takuya Kitamura
  • Publication number: 20230095186
    Abstract: An information processing device (10, 10A) includes a band requesting unit (162, 162A), an adjusting unit (164, 164A), and a transmitting unit (140). The band requesting unit (162, 162A) requests, according to a bandwidth necessary for transmitting information including a moving image, a use reservation of the bandwidth. The adjusting unit (164, 164A) adjusts, according to a result of the request by the band requesting unit and a reserved bandwidth, an information amount of information to be transmitted. The transmitting unit (140) converts the information with the adjusted information amount into a transmission signal and transmits the transmission signal.
    Type: Application
    Filed: March 4, 2021
    Publication date: March 30, 2023
    Inventor: TAKEFUMI NAGUMO
  • Publication number: 20230066438
    Abstract: The present disclosure relates to an information processing device and method capable of suppressing an increase in load of processing of sensing data. A bit depth of intermediate data generated from sensing data obtained in a sensor of an indirect time-of-flight (TOF) system is corrected, and the intermediate data with the bit depth corrected is encoded, and coded data is generated. For example, the bit depth of the intermediate data is corrected using a gamma curve that is a predetermined curve indicating input-output characteristics. The present disclosure can be applied to, for example, an image processing device, an image encoding device, an image decoding device, an imaging element, an imaging device, or the like.
    Type: Application
    Filed: February 8, 2021
    Publication date: March 2, 2023
    Inventors: TAKEFUMI NAGUMO, TAKUYA KITAMURA
  • Patent number: 11563477
    Abstract: The present technology relates to an information processing device and method capable of suppressing lowering in the quality of user experience. An information processing device includes: a wireless communication unit that sends transmission information to another information processing device through wireless communication; and a control unit that controls at least one of the wireless communication performed by the wireless communication unit, encoding of the transmission information, or a processing process on the transmission information on the basis of blockage prediction period information indicating a prediction result on blockage of a communication path to the another information processing device. The present technology can be applied to a content playback system.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: January 24, 2023
    Assignee: SONY GROUP CORPORATION
    Inventors: Kosuke Aio, Sawako Kiriyama, Yuichi Hasegawa, Takefumi Nagumo, Asako Doi
  • Publication number: 20220103224
    Abstract: The present technology relates to an information processing device and method capable of suppressing lowering in the quality of user experience. An information processing device includes: a wireless communication unit that sends transmission information to another information processing device through wireless communication; and a control unit that controls at least one of the wireless communication performed by the wireless communication unit, encoding of the transmission information, or a processing process on the transmission information on the basis of blockage prediction period information indicating a prediction result on blockage of a communication path to the another information processing device. The present technology can be applied to a content playback system.
    Type: Application
    Filed: January 9, 2020
    Publication date: March 31, 2022
    Inventors: KOSUKE AIO, SAWAKO KIRIYAMA, YUICHI HASEGAWA, TAKEFUMI NAGUMO, ASAKO DOI
  • Patent number: 11272180
    Abstract: The present disclosure relates to an image processing apparatus and method that can keep reduction in coding efficiency to a minimum. A scaling list is set that has values appropriate to a current block size for the current block to be quantized in an image to be coded, quantization is performed using the set scaling list, and coded data is generated by coding an acquired quantization coefficient. The present disclosure is applicable, for example, to an image processing apparatus, an image coding apparatus, an image decoding apparatus, and so on.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: March 8, 2022
    Assignee: SONY CORPORATION
    Inventors: Takefumi Nagumo, Hironari Sakurai
  • Publication number: 20220030159
    Abstract: The present disclosure relates to an image capturing element, an image capturing device, and a method that are capable of preventing a reduction in communication safety. By capturing an image of a subject, and generating a captured image, a predetermined feature amount to be output to the outside is extracted from the generated captured image. For example, an image capturing section that captures an image of a subject to generate a captured image, and a feature amount extracting section that extracts, from the captured image generated by the image capturing section, a predetermined feature amount to be output to the outside, are packaged and are formed in respective substrates different from each other. The present disclosure can be applied to, for example, an image capturing element, an image capturing device, an image processing device, a transmission device, or a communication device.
    Type: Application
    Filed: November 21, 2019
    Publication date: January 27, 2022
    Inventors: TAKUYA KITAMURA, TAKEFUMI NAGUMO
  • Publication number: 20220028040
    Abstract: The present disclosure relates to an image processing apparatus and method that make it possible to suppress increase of a prediction error. Image data is encoded by a method according to a type of pixel. For example, image data is encoded by a method according to whether the pixel is an image plane phase difference detection pixel or a normal pixel. Further, encoded data of image data is decoded by a method according to a type of pixel. For example, encoded data is decoded by a method according to whether the image is an image plane phase difference detection pixel or a normal pixel. The present technology can be applied, for example, to an image processing apparatus, an image encoding apparatus, an image decoding apparatus, an imaging device, an imaging apparatus, or the like.
    Type: Application
    Filed: November 21, 2019
    Publication date: January 27, 2022
    Inventors: TOSHINORI IHARA, TAKEFUMI NAGUMO, MAKOTO DAIDO
  • Patent number: 11223824
    Abstract: A reference direction determination unit 44 detects, using an input image, a scene change, a flash scene, or a monotonous luminance variation section. In a case where an encoding target image is the scene change or flash scene, the reference direction determination unit 44 determines its mode as a fixed reference direction mode in which a reference direction in a screen is fixed uniformly. Further, in a case where the encoding target image is the monotonous luminance variation section, that is, a section where luminance of an entire screen monotonously increases or monotonously decreases, the reference direction determination unit 44 determines as the fixed reference direction mode in which the reference direction in the screen is fixed uniformly. A motion prediction/compensation unit 42 performs inter prediction processing according to a determination result of the reference direction determination unit 44, thereby enabling efficient encoding while suppressing deterioration of image quality.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: January 11, 2022
    Assignees: SONY CORPORATION, SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshitaka Morigami, Takefumi Nagumo, Hironari Sakurai, Takashi Fukuyama
  • Publication number: 20210375003
    Abstract: The present disclosure relates to an image processing apparatus and an image processing method capable of reducing an increase in a load imposed by processing of multispectral image data. Multispectral image data including components in four or more wavelength bands is simple-coded at a fixed compression rate. Alternatively, coded data generated by simple coding at a fixed compression rate for multispectral image data including components in four or more wavelength bands is simple-decoded. For example, the present disclosure is applicable to an image processing apparatus, an image coding apparatus, an image decoding apparatus, an imaging element, an imaging apparatus, or the like.
    Type: Application
    Filed: May 17, 2019
    Publication date: December 2, 2021
    Inventors: TOSHINORI IHARA, TAKUYA KITAMURA, TAKEFUMI NAGUMO
  • Publication number: 20210266478
    Abstract: The present disclosure relates to image processing apparatus and method that can suppress the increase in the load of processing multi-wavelength data. A subject is imaged to generate multi-wavelength data that is image data including four or more wavelength components, the generated multi-wavelength data is encoded to generate encoded data of the multi-wavelength data, and the generated encoded data is transmitted. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, an imaging element, an imaging apparatus, or the like.
    Type: Application
    Filed: May 17, 2019
    Publication date: August 26, 2021
    Inventors: TAKEFUMI NAGUMO, TOSHINORI IHARA, TAKUYA KITAMURA
  • Publication number: 20210243437
    Abstract: A polarization imaging unit 20 acquires a polarized image including polarization pixels with a plurality of polarization directions. An information compression unit 40 sets reference image information based on polarized image information of reference polarization pixels with at least a plurality of polarization directions in the polarized image and generates difference information between the polarized image information of each of polarization pixels different from the reference polarization pixels in the polarized image and the reference image information. In addition, the information compression unit 40 reduces the amount of information of the difference information generated for each of the polarization pixels with the plurality of polarization directions to generate compressed image information including the reference image information and the difference information with the reduced amount of information.
    Type: Application
    Filed: June 6, 2019
    Publication date: August 5, 2021
    Applicant: SONY CORPORATION
    Inventors: Yuhi KONDO, Yasutaka HIRASAWA, Takefumi NAGUMO, Toshinori IHARA, Teppei KURITA, Legong SUN
  • Publication number: 20210185305
    Abstract: A reference direction determination unit 44 detects, using an input image, a scene change, a flash scene, or a monotonous luminance variation section. In a case where an encoding target image is the scene change or flash scene, the reference direction determination unit 44 determines its mode as a fixed reference direction mode in which a reference direction in a screen is fixed uniformly. Further, in a case where the encoding target image is the monotonous luminance variation section, that is, a section where luminance of an entire screen monotonously increases or monotonously decreases, the reference direction determination unit 44 determines as the fixed reference direction mode in which the reference direction in the screen is fixed uniformly. A motion prediction/compensation unit 42 performs inter prediction processing according to a determination result of the reference direction determination unit 44, thereby enabling efficient encoding while suppressing deterioration of image quality.
    Type: Application
    Filed: October 10, 2018
    Publication date: June 17, 2021
    Applicants: SONY CORPORATION, SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshitaka MORIGAMI, Takefumi NAGUMO, Hironari SAKURAI, Takashi FUKUYAMA
  • Patent number: 10893269
    Abstract: There is provided an image processing device and method capable of suppressing a decrease in subjective image quality. A size of a current block for a prediction process is set according to a size of a peripheral block situated on a periphery of the current block. The prediction process is to generate a predicted image of an image to be encoded. An intra prediction process is performed on the current block that has been set and the predicted image is generated. The image to be encoded is encoded using the predicted image that has been generated. The present disclosure can be applied to, for example, an image processing device, an image encoding device, or an image decoding device.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: January 12, 2021
    Assignee: SONY CORPORATION
    Inventors: Yoshitaka Morigami, Shuo Lu, Takefumi Nagumo
  • Publication number: 20200396381
    Abstract: The present disclosure relates to an image processing device and a method thereof, an imaging element, and an imaging device in which a signal value deviation generated through encoding and decoding of an amplified signal group can be restrained. Adaptive processing is executed on an image in which signal amplification has been executed, and the resultant image is encoded. For example, an offset value that is randomly set within a value range that depends on a gain value of the signal amplification executed on the image is added to each pixel value of the image, and then, the resultant image is encoded. The present disclosure is applicable to an image processing device, an image encoding device, an image decoding device, an imaging element, or an imaging device, for example.
    Type: Application
    Filed: February 15, 2019
    Publication date: December 17, 2020
    Inventors: TOSHINORI IHARA, TAKEFUMI NAGUMO
  • Patent number: 10841585
    Abstract: The present disclosure relates to image processing apparatus and method that can suppress a reduction in image quality. An addition order of candidate data that is a candidate for additional data to be added to encoded data including encoded image data in blocks is set on a block-by-block basis in order to set the encoded data to a fixed length. In this case, pseudo-random numbers may be used to set the addition order of the candidate data, or table information indicating the addition order of the candidate data may be used to set the addition order of the candidate data. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, or the like.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: November 17, 2020
    Assignee: SONY CORPORATION
    Inventors: Toshinori Ihara, Takefumi Nagumo
  • Patent number: 10812790
    Abstract: The present technology relates to a data processing apparatus, data processing method, and a program which improve a compression ratio. Provided are a first compression part compressing data using compressed sensing and a second compression part compressing observation coefficients coming from the first compression part using a method different from the method used in the first compression part. The first compression part performs random sampling using a sampling matrix optimized for compression by the second compression part. The sampling matrix is designed to minimize the differential value between the observation coefficients. The present technology can be applied to recording/reproducing apparatuses that capture, compress, record, and reproduce image data.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: October 20, 2020
    Assignee: SONY CORPORATION
    Inventor: Takefumi Nagumo
  • Patent number: 10764594
    Abstract: There is provided an image encoding device and an image encoding method, and an image processing device and an image processing method that enable easier bitstream concatenation. A structure according to the present disclosure includes: a setting unit that sets header information related to a hypothetical reference decoder in accordance with information about a position and information about reference, the information about a position and the information about reference being of the current picture of image data to be processed; and an encoding unit that encodes the image data and generates a bitstream containing the encoded data of the image data and the header information set by the setting unit. The present disclosure can be applied to image processing devices or image encoding devices, for example.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: September 1, 2020
    Assignee: SONY CORPORATION
    Inventors: Junichi Tanaka, Akihiro Imamura, Ohji Nakagami, Takefumi Nagumo, Yuichi Araki, Yuji Fujimoto, Shinobu Hattori, Masakazu Kouno