Patents by Inventor SHIMPEI MIYAHARA

SHIMPEI MIYAHARA 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: 10791270
    Abstract: An image stabilization apparatus includes a processor programmed to function as a first acquirer configured to acquire angular velocity data of an angular velocity sensor, a second acquirer configured to acquire data relating to a position of a correction lens to be driven so as to correct a blur in a captured image, a third acquirer configured to acquire a motion vector calculated based on the captured image, and an estimator configured to estimate an offset component of the angular velocity sensor based on the angular velocity data, the data relating to the position, and the motion vector. The data relating to the position is generated based on the angular velocity data.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: September 29, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shimpei Miyahara
  • Patent number: 10623643
    Abstract: An image processing apparatus comprising: an acquisition unit that acquires an image stabilization correction amount based on image stabilization information acquired from an external device via a communication unit; a prediction unit that predicts an image stabilization correction amount based on an image stabilization correction amount used in the past; a selector that selects one of the image stabilization correction amount acquired by the acquisition unit and the image stabilization correction amount predicted by the prediction unit; and an image stabilization unit that performs image stabilization based on the image stabilization correction amount selected by the selector. If the image stabilization information is successfully acquired, the selector selects the image stabilization correction amount acquired by the acquisition unit, and if the image stabilization information is not successfully acquired, the selector selects the predicted image stabilization correction amount.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: April 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shimpei Miyahara
  • Publication number: 20190174062
    Abstract: An image stabilization apparatus includes a processor programmed to function as a first acquirer configured to acquire angular velocity data of an angular velocity sensor, a second acquirer configured to acquire data relating to a position of a correction lens to be driven so as to correct a blur in a captured image, a third acquirer configured to acquire a motion vector calculated based on the captured image, and an estimator configured to estimate an offset component of the angular velocity sensor based on the angular velocity data, the data relating to the position, and the motion vector. The data relating to the position is generated based on the angular velocity data.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 6, 2019
    Inventor: Shimpei Miyahara
  • Patent number: 10313593
    Abstract: An image stabilization apparatus comprises: an identification unit that, based on an angular velocity signal outputted from a shake detection unit, a motion vector calculated from a difference between frames of images outputted from an image sensor, and a position signal indicating a position of a correction unit that corrects a shake optically, identifies an output variation of the shake detection unit; and a conversion unit that converts the angular velocity signal into a shake correction amount by correcting the angular velocity signal based on the output variation identified by the identification unit.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: June 4, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shimpei Miyahara
  • Patent number: 9912869
    Abstract: An image stabilization apparatus comprising: a conversion unit that corrects an angular velocity signal detected by a camera shake detection unit based on an output variation of the camera shake detection unit and converts it into a camera shake amount; a separation unit that divides each frame of image into a plurality of regions and separates motion vectors each calculated from a difference in each region between frames of images into subject vectors and background vectors using the camera shake amount; an identification unit that identifies the output variation based on the angular velocity signal before the correction, the background vector, and a position signal of a correction unit; and a changing unit that changes the subject vector into a drive amount of the correction unit. The conversion unit corrects the angular velocity signal based on the identified output variation.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 6, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shimpei Miyahara
  • Publication number: 20170353667
    Abstract: An image processing apparatus comprising: an acquisition unit that acquires an image stabilization correction amount based on image stabilization information acquired from an external device via a communication unit; a prediction unit that predicts an image stabilization correction amount based on an image stabilization correction amount used in the past; a selector that selects one of the image stabilization correction amount acquired by the acquisition unit and the image stabilization correction amount predicted by the prediction unit; and an image stabilization unit that performs image stabilization based on the image stabilization correction amount selected by the selector. If the image stabilization information is successfully acquired, the selector selects the image stabilization correction amount acquired by the acquisition unit, and if the image stabilization information is not successfully acquired, the selector selects the predicted image stabilization correction amount.
    Type: Application
    Filed: June 2, 2017
    Publication date: December 7, 2017
    Inventor: Shimpei Miyahara
  • Patent number: 9762802
    Abstract: An image blurring correction apparatus includes a correction member for correcting image blur, and a shake detection unit for detecting the shake of the apparatus and outputting a shake signal. The image blurring correction apparatus generates first shake amount data based on the shake signal, and generates second shake amount data, based on the shake signal, with which a higher shake correction effect than that of the first shake amount data can be obtained. The image blurring correction apparatus selects either the first or the second shake amount data based on the shake signal, and calculates a shake correction amount that is a moving amount of the correction member using the selected shake amount data.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: September 12, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shimpei Miyahara
  • Patent number: 9659356
    Abstract: An image blur correction apparatus, comprises a blur correction amount calculation unit configured to calculate a blur correction amount based on a shake amount of the apparatus; an estimation calculation unit configured to calculate an estimated value of the blur correction amount using a blur correction amount calculated up until a previous time; a correction unit configured to correct an image blur by cutting out an image using the blur correction amount or the estimated value; and a determination unit configured to determine whether or not to calculate the estimated value in accordance with a frame rate of a moving image.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: May 23, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shimpei Miyahara
  • Publication number: 20170134658
    Abstract: An image stabilization apparatus comprises: an identification unit that, based on an angular velocity signal outputted from a shake detection unit, a motion vector calculated from a difference between frames of images outputted from an image sensor, and a position signal indicating a position of a correction unit that corrects a shake optically, identifies an output variation of the shake detection unit; and a conversion unit that converts the angular velocity signal into a shake correction amount by correcting the angular velocity signal based on the output variation identified by the identification unit.
    Type: Application
    Filed: October 11, 2016
    Publication date: May 11, 2017
    Inventor: Shimpei Miyahara
  • Publication number: 20170134659
    Abstract: An image stabilization apparatus comprising: a conversion unit that corrects an angular velocity signal detected by a camera shake detection unit based on an output variation of the camera shake detection unit and converts it into a camera shake amount; a separation unit that divides each frame of image into a plurality of regions and separates motion vectors each calculated from a difference in each region between frames of images into subject vectors and background vectors using the camera shake amount; an identification unit that identifies the output variation based on the angular velocity signal before the correction, the background vector, and a position signal of a correction unit; and a changing unit that changes the subject vector into a drive amount of the correction unit. The conversion unit corrects the angular velocity signal based on the identified output variation.
    Type: Application
    Filed: October 25, 2016
    Publication date: May 11, 2017
    Inventor: Shimpei Miyahara
  • Patent number: 9253400
    Abstract: An image capture apparatus includes an image pickup device, a first image stabilization unit which optically corrects an image blur by driving part of the optical system, a second image stabilization unit which electronically corrects the image blur by controlling the image readout position of the image pickup device, a shake detection unit which detects a shake of the image capture apparatus, a correction amount calculation unit which calculates an image stabilization amount based on the detected shake signal, and a division unit which divides a first image stabilization amount of a predetermined frequency band into a second image stabilization amount for correcting the image blur by the first image stabilization unit and a third image stabilization amount for correcting the image blur by the second image stabilization unit.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: February 2, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shimpei Miyahara
  • Publication number: 20160014341
    Abstract: An image blurring correction apparatus includes a correction member for correcting image blur, and a shake detection unit for detecting the shake of the apparatus and outputting a shake signal. The image blurring correction apparatus generates first shake amount data based on the shake signal, and generates second shake amount data, based on the shake signal, with which a higher shake correction effect than that of the first shake amount data can be obtained. The image blurring correction apparatus selects either the first or the second shake amount data based on the shake signal, and calculates a shake correction amount that is a moving amount of the correction member using the selected shake amount data.
    Type: Application
    Filed: September 23, 2015
    Publication date: January 14, 2016
    Inventor: Shimpei Miyahara
  • Patent number: 9197817
    Abstract: An image blurring correction apparatus includes a correction member for correcting image blur, and a shake detection unit for detecting the shake of the apparatus and outputting a shake signal. The image blurring correction apparatus generates first shake amount data based on the shake signal, and generates second shake amount data, based on the shake signal, with which a higher shake correction effect than that of the first shake amount data can be obtained. The image blurring correction apparatus selects either the first or the second shake amount data based on the shake signal, and calculates a shake correction amount that is a moving amount of the correction member using the selected shake amount data.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: November 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shimpei Miyahara
  • Publication number: 20150317775
    Abstract: An image blur correction apparatus, comprises a blur correction amount calculation unit configured to calculate a blur correction amount based on a shake amount of the apparatus; an estimation calculation unit configured to calculate an estimated value of the blur correction amount using a blur correction amount calculated up until a previous time; a correction unit configured to correct an image blur by cutting out an image using the blur correction amount or the estimated value; and a determination unit configured to determine whether or not to calculate the estimated value in accordance with a frame rate of a moving image.
    Type: Application
    Filed: April 29, 2015
    Publication date: November 5, 2015
    Inventor: Shimpei Miyahara
  • Publication number: 20140267807
    Abstract: An image capture apparatus includes an image pickup device, a first image stabilization unit which optically corrects an image blur by driving part of the optical system, a second image stabilization unit which electronically corrects the image blur by controlling the image readout position of the image pickup device, a shake detection unit which detects a shake of the image capture apparatus, a correction amount calculation unit which calculates an image stabilization amount based on the detected shake signal, and a division unit which divides a first image stabilization amount of a predetermined frequency band into a second image stabilization amount for correcting the image blur by the first image stabilization unit and a third image stabilization amount for correcting the image blur by the second image stabilization unit.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 18, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Shimpei Miyahara
  • Patent number: 8588597
    Abstract: An image blurring correction device includes a correction member which moves in a direction perpendicular to the optical axis of an imaging optical system to correct blurring of an optical image, two driving units which drive the correction member in different directions, a shake detection unit which detects a shake applied to the image blurring correction device, a correction amount calculation unit which calculates, based on shake information detected by the shake detection unit, a correction amount for correcting blurring of the optical image, and a conversion unit which converts the correction amount to cancel a driving error generated by a rotation moment applied to the correction member. The driving units drive the correction member based on the correction amount converted by the conversion unit, correcting blurring of the optical image.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: November 19, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shimpei Miyahara, Hiroki Ota
  • Publication number: 20130034345
    Abstract: An image blurring correction apparatus includes a correction member for correcting image blur, and a shake detection unit for detecting the shake of the apparatus and outputting a shake signal. The image blurring correction apparatus generates first shake amount data based on the shake signal, and generates second shake amount data, based on the shake signal, with which a higher shake correction effect than that of the first shake amount data can be obtained. The image blurring correction apparatus selects either the first or the second shake amount data based on the shake signal, and calculates a shake correction amount that is a moving amount of the correction member using the selected shake amount data.
    Type: Application
    Filed: July 20, 2012
    Publication date: February 7, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Shimpei Miyahara
  • Publication number: 20120014681
    Abstract: An image blurring correction device includes a correction member which moves in a direction perpendicular to the optical axis of an imaging optical system to correct blurring of an optical image, two driving units which drive the correction member in different directions, a shake detection unit which detects a shake applied to the image blurring correction device, a correction amount calculation unit which calculates, based on shake information detected by the shake detection unit, a correction amount for correcting blurring of the optical image, and a conversion unit which converts the correction amount to cancel a driving error generated by a rotation moment applied to the correction member. The driving units drive the correction member based on the correction amount converted by the conversion unit, correcting blurring of the optical image.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 19, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: SHIMPEI MIYAHARA, Hiroki Ota