Patents by Inventor Kei Tamagawa

Kei Tamagawa 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: 20240007575
    Abstract: An image management apparatus which provides a cloud service which receives a captured image transmitted from an image capturing apparatus, the cloud service having a function to transfer the received captured image to an external storage service, the image management apparatus managing transfer setting information in which the external storage service and each of one or more image capturing apparatuses associated with a specific user are associated, and transferring the received captured image based on the transfer setting information.
    Type: Application
    Filed: June 27, 2023
    Publication date: January 4, 2024
    Inventor: KEI TAMAGAWA
  • Patent number: 11809967
    Abstract: An information processing apparatus comprises: an obtaining unit configured to obtain an estimation result estimated using an estimation model; a determination unit configured to determine a conversion table configured to correct the estimation result using the estimation model based on an estimation accuracy in the estimation model; and a correction unit configured to correct the estimation result based on the conversion table.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 7, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kei Tamagawa
  • Publication number: 20200210898
    Abstract: An information processing apparatus comprises: an obtaining unit configured to obtain an estimation result estimated using an estimation model; a determination unit configured to determine a conversion table configured to correct the estimation result using the estimation model based on an estimation accuracy in the estimation model; and a correction unit configured to correct the estimation result based on the conversion table.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 2, 2020
    Inventor: Kei Tamagawa
  • Patent number: 9612780
    Abstract: An information processing system of the present invention includes a data generation device that generates variable data, and a rendering device that performs rendering of the variable data. A first data storing unit of the data generation device stores, as a first correspondence relationship, the generated variable data and identification information for identifying the variable data in association with each other, and a first data management unit manages the first correspondence relationship based on a predetermined management scheme. A cache search unit searches for predetermined variable data from the first correspondence relationship, and a cache hit determination unit determines that rendering data obtained by performing rendering on the variable data is cached when there is predetermined variable data in the first correspondence relationship.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: April 4, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kei Tamagawa
  • Publication number: 20160162223
    Abstract: An information processing system of the present invention includes a data generation device that generates variable data, and a rendering device that performs rendering of the variable data. A first data storing unit of the data generation device stores, as a first correspondence relationship, the generated variable data and identification information for identifying the variable data in association with each other, and a first data management unit manages the first correspondence relationship based on a predetermined management scheme. A cache search unit searches for predetermined variable data from the first correspondence relationship, and a cache hit determination unit determines that rendering data obtained by performing rendering on the variable data is cached when there is predetermined variable data in the first correspondence relationship.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 9, 2016
    Inventor: Kei Tamagawa
  • Publication number: 20140156468
    Abstract: A print order receiving and placing system capable of reducing workloads on operator's ordering operations and input errors. The system for receiving a print product production request from an order placing terminal includes a print process registration unit configured to register a print process including setting information about printing by a printing machine, a processing process registration unit configured to register a processing process including setting information about processing by a processing machine, a product registration unit configured to register a product including a product specification for defining a print process selected from a plurality of registered print processes, a processing process selected from a plurality of registered processing processes, and order information regarding an execution order of these processes, and an item registration unit configured to register the registered product as an item which can be ordered from the order placing terminal.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 5, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kei Tamagawa
  • Patent number: 8451340
    Abstract: It is difficult to reproduce an original tone when reconstructing an HDR image from an image tone-converted into an LDR image. A tone conversion unit generates an adaptation point image XYZL representing an adaptation point corresponding to each pixel of an original image XYZ. The tone conversion unit converts the tone of the original image XYZ by smoothing based on the adaptation point image XYZL, generating a tone-converted image XYZdev. Then, an addition unit adds the adaptation point image XYZL to the tone-converted image XYZdev, generating an adaptation point image-attached tone-converted image XYZdevL. The original image XYZ can be precisely reconstructed from the adaptation point image-attached tone-converted image XYZdevL.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: May 28, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kei Tamagawa
  • Patent number: 8275199
    Abstract: Upon creating a color conversion table from a first color space to a second color space, a reversal region where hues are reversed is detected from at least one color gamut in step S2, and the reversal region is corrected in step S3. Mapping is done based on the corrected color gamut in step S4, thereby creating an appropriate color conversion table that suppresses any hue reversal.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: September 25, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kei Tamagawa
  • Patent number: 7929760
    Abstract: Input and output gamut data of input and output devices and a viewing condition are input. The color values of a specific color and target values of the specific color on a color appearance space are obtained. Using a color processing coefficient required to convert the color values of the specific color into the target values, color processing is applied to image data input from the input device, and the image data that has undergone the color processing is output to the output device.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: April 19, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kei Tamagawa
  • Publication number: 20100283861
    Abstract: It is difficult to reproduce an original tone when reconstructing an HDR image from an image tone-converted into an LDR image. A tone conversion unit generates an adaptation point image XYZL representing an adaptation point corresponding to each pixel of an original image XYZ. The tone conversion unit converts the tone of the original image XYZ by smoothing based on the adaptation point image XYZL, generating a tone-converted image XYZdev. Then, an addition unit adds the adaptation point image XYZL to the tone-converted image XYZdev, generating an adaptation point image-attached tone-converted image XYZdevL. The original image XYZ can be precisely reconstructed from the adaptation point image-attached tone-converted image XYZdevL.
    Type: Application
    Filed: April 22, 2010
    Publication date: November 11, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kei Tamagawa
  • Publication number: 20080137948
    Abstract: Upon creating a color conversion table from a first color space to a second color space, a reversal region where hues are reversed is detected from at least one color gamut in step S2, and the reversal region is corrected in step S3. Mapping is done based on the corrected color gamut in step S4, thereby creating an appropriate color conversion table that suppresses any hue reversal.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 12, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: KEI TAMAGAWA
  • Publication number: 20070230777
    Abstract: Input and output gamut data of input and output devices and a viewing condition are input. The color values of a specific color and target values of the specific color on a color appearance space are obtained. Using a color processing coefficient required to convert the color values of the specific color into the target values, color processing is applied to image data input from the input device, and the image data that has undergone the color processing is output to the output device.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 4, 2007
    Applicant: Canon Kabushiki Kaisha
    Inventor: Kei Tamagawa