Patents by Inventor Nobushige Wakamatsu

Nobushige Wakamatsu 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: 20190208126
    Abstract: A control device includes: a correction control unit configured to acquire a blur detection signal detected by a blur detection unit to calculate a correction amount of an image blur and control an image blur correction unit configured to correct the image blur; a subject detection unit configured to detect a position of a subject in a photographed image and acquire position information of the subject in the photographed image; a tracking control unit configured to perform tracking control of the subject based on the position information of the subject acquired by the subject detection unit to; and a setting unit configured to set a control state of the tracking control unit. The setting unit sets the control state of the tracking control unit by selecting the set control state from a plurality of control states including a first state in which a tracking subject selectable mode is not set and a second state in which the mode is set and a tracking subject is not selected.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 4, 2019
    Inventor: Nobushige Wakamatsu
  • Patent number: 10277809
    Abstract: An imaging device includes a subject detecting unit configured to detect a subject image from a captured image captured by an imaging element; a motion vector acquiring unit configured to acquire a motion vector of the subject image detected by the subject detecting unit, by comparing image signals in different frames acquired by the imaging element; a comparison unit configured to acquire a comparison result, by comparing a position of the subject image detected by the subject detecting unit with a predetermined position; and a moving unit configured to reduce movement of the position of the subject image in the imaging range, by moving the subject image on the basis of the motion vector and the comparison result.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: April 30, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobushige Wakamatsu
  • Patent number: 10270973
    Abstract: A control device includes: a correction control unit configured to acquire a blur detection signal detected by a blur detection unit to calculate a correction amount of an image blur and control an image blur correction unit configured to correct the image blur; a subject detection unit configured to detect a position of a subject in a photographed image and acquire position information of the subject in the photographed image; a tracking control unit configured to perform tracking control of the subject based on the position information of the subject acquired by the subject detection unit to; and a setting unit configured to set a control state of the tracking control unit. The setting unit sets the control state of the tracking control unit by selecting the set control state from a plurality of control states including a first state in which a tracking subject selectable mode is not set and a second state in which the mode is set and a tracking subject is not selected.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: April 23, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobushige Wakamatsu
  • Patent number: 10244170
    Abstract: In an image-shake correction apparatus, if distortion is generated such that a screen peripheral portion of an image pickup screen of an image pickup element is reduced as compared with a screen center portion of the image pickup screen and if distortion is generated such that the screen center portion is reduced as compared with the screen peripheral portion, image-shake correction effect in the screen center portion is higher than image-shake correction effect in the screen peripheral portion.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: March 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobushige Wakamatsu
  • Patent number: 10222679
    Abstract: An image pickup apparatus is provided with a shake correction unit that corrects image shake of an image that can arise from shake such as camera shake and a driver thereof. An angular velocimeter detects an angular velocity of shake, and an accelerometer detects acceleration of the shake. A CPU acquires an angular velocity detection signal and an acceleration detection signal, and then computes a first parallel shake amount that is shake in the direction orthogonal to the optical axis of an imaging optical system. A velocity computation unit computes a second parallel shake amount by combining the acceleration detection signal and the first parallel shake amount. The driver drives the shake correction unit based on the second parallel shake amount to correct shake.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: March 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobushige Wakamatsu
  • Publication number: 20180316865
    Abstract: An image stabilization apparatus including a supporting unit that supports an image capturing unit, a rotation unit that rotates the supporting unit, a calculation unit that calculates a residual correction amount of image blur after image blur correction is performed by a first image blur correction unit, a second image blur correction unit that corrects the residual correction amount of image blur using a method different from that of the first image blur correction unit, and a change unit that changes allocation between a correctable range of the second image blur correction unit correcting image blur in a horizontal or vertical direction on the imaging plane and a correctable range of the second image blur correction unit, based on a rotation angle of the rotation unit and the residual correction amount of image blur.
    Type: Application
    Filed: April 25, 2018
    Publication date: November 1, 2018
    Inventor: Nobushige Wakamatsu
  • Patent number: 10091423
    Abstract: An image shake correcting apparatus in which a first calculating unit calculates a correction coefficient using information corresponding to an angular velocity from a first shake detecting unit and information corresponding to an acceleration output from a second shake detecting unit. A second calculating unit calculates a translational shake correction amount using the correction coefficient and the information corresponding to the angular velocity from the first shake detecting unit. A control unit controls (i) a shake correcting unit that corrects a translational shake according to a third calculating unit that calculates an imaging magnification of an imaging optical system, (ii) a filter selecting a frequency band in which the translational shake correction is performed, and (iii) the translational shake correction amount in the translational shake correction frequency range selected by the filter.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: October 2, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobushige Wakamatsu
  • Publication number: 20180173079
    Abstract: An image pickup apparatus is provided with a shake correction unit that corrects image shake of an image that can arise from shake such as camera shake and a driver thereof. An angular velocimeter detects an angular velocity of shake, and an accelerometer detects acceleration of the shake. A CPU acquires an angular velocity detection signal and an acceleration detection signal, and then computes a first parallel shake amount that is shake in the direction orthogonal to the optical axis of an imaging optical system. A velocity computation unit computes a second parallel shake amount by combining the acceleration detection signal and the first parallel shake amount. The driver drives the shake correction unit based on the second parallel shake amount to correct shake.
    Type: Application
    Filed: May 10, 2016
    Publication date: June 21, 2018
    Applicant: Canon Kabushiki Kaisha
    Inventor: Nobushige Wakamatsu
  • Publication number: 20180082144
    Abstract: A search apparatus includes a division unit configured to perform division into areas for respective angle regions in space coordinates with an imaging apparatus set as an origin thereof, a calculation unit configured to calculate an importance level of a subject for each of the areas obtained by division, and a changing unit configured to change a center position of a field angle of a captured image in which to search for a subject based on the importance level of a subject calculated for each of the areas.
    Type: Application
    Filed: September 19, 2017
    Publication date: March 22, 2018
    Inventor: Nobushige Wakamatsu
  • Patent number: 9924100
    Abstract: A tilt correction apparatus includes a manipulation unit configured to designate a level of an effect of first tilt correction of an imaging apparatus having an optical axis as a rotary axis and a level of an effect of second tilt correction of the imaging apparatus having an axis orthogonal to the optical axis as a rotary axis, an electronic correction unit configured to execute at least one of the first tilt correction and the second tilt correction by moving an image clipping range set within an imaging screen, and a calculation unit configured to vary a ratio of a first tilt-correctable range and a ratio of a second tilt-correctable range from the electronic correction unit according to the level of the effect of the first tilt correction and the level of the effect of the second tilt correction.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: March 20, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobushige Wakamatsu
  • Patent number: 9912868
    Abstract: A tilt correction apparatus includes a manipulation unit configured to designate a level of an effect of first tilt correction of an imaging apparatus having an optical axis as a rotary axis and a level of an effect of second tilt correction of the imaging apparatus having an axis orthogonal to the optical axis as a rotary axis, an electronic correction unit configured to execute at least one of the first tilt correction and the second tilt correction by moving an image clipping range set within an imaging screen, and a calculation unit configured to vary a ratio of a first tilt-correctable range and a ratio of a second tilt-correctable range from the electronic correction unit according to the level of the effect of the first tilt correction and the level of the effect of the second tilt correction.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: March 6, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobushige Wakamatsu
  • Publication number: 20180041710
    Abstract: A tilt correction apparatus includes a manipulation unit configured to designate a level of an effect of first tilt correction of an imaging apparatus having an optical axis as a rotary axis and a level of an effect of second tilt correction of the imaging apparatus having an axis orthogonal to the optical axis as a rotary axis, an electronic correction unit configured to execute at least one of the first tilt correction and the second tilt correction by moving an image clipping range set within an imaging screen, and a calculation unit configured to vary a ratio of a first tilt-correctable range and a ratio of a second tilt-correctable range from the electronic correction unit according to the level of the effect of the first tilt correction and the level of the effect of the second tilt correction.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 8, 2018
    Inventor: Nobushige Wakamatsu
  • Publication number: 20180041705
    Abstract: An image shake correcting apparatus in which a first calculating unit calculates a correction coefficient using information corresponding to an angular velocity from a first shake detecting unit and information corresponding to an acceleration output from a second shake detecting unit. A second calculating unit calculates a translational shake correction amount using the correction coefficient and the information corresponding to the angular velocity from the first shake detecting unit. A control unit controls (i) a shake correcting unit that corrects a translational shake according to a third calculating unit that calculates an imaging magnification of an imaging optical system, (ii) a filter selecting a frequency band in which the translational shake correction is performed, and (iii) the translational shake correction amount in the translational shake correction frequency range selected by the filter.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 8, 2018
    Inventor: Nobushige Wakamatsu
  • Patent number: 9883104
    Abstract: A control apparatus includes a first angle calculating unit configured to calculate a first angle based on an acceleration detected by an acceleration detector, an analyzing unit configured to analyze a vibration state based on at least one of the acceleration and an angular velocity detected by an angular velocity detector, a second angle calculating unit configured to calculate a second angle based on the angular velocity, the first angle, and the vibration state, and a correcting unit configured to perform tilt correction based on the second angle.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: January 30, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobushige Wakamatsu
  • Patent number: 9813627
    Abstract: An image shake correcting apparatus includes a shake detecting unit to detect shake of an apparatus containing an imaging optical system. A calculating unit calculates an image shake correction amount by acquiring a shake detection signal output from the shake detecting unit. A shake correcting unit corrects an image shake in accordance with the image shake correction amount calculated by the calculating unit. The calculating unit calculates an imaging magnification of the imaging optical system, and calculates the image shake correction amount by calculating a first correction amount before change of a frequency range of a correction filter and calculates the image shake correction amount by a second correction amount after change of a frequency range, in accordance with a size of the imaging magnification.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: November 7, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Nobushige Wakamatsu
  • Patent number: 9692962
    Abstract: A control device configured to track a subject by controlling a correcting lens so that the subject is moved to a target position of a photographed image. The control device performs feedback control so that a difference between a position of the subject and a target position of the subject in the photographed image becomes small. The control device detects a photographing condition and changes a degree of tracking of the subject by changing a control gain in the feedback control based on the detected photographing condition.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: June 27, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobushige Wakamatsu
  • Publication number: 20170163894
    Abstract: A control device includes: a correction control unit configured to acquire a blur detection signal detected by a blur detection unit to calculate a correction amount of an image blur and control an image blur correction unit configured to correct the image blur; a subject detection unit configured to detect a position of a subject in a photographed image and acquire position information of the subject in the photographed image; a tracking control unit configured to perform tracking control of the subject based on the position information of the subject acquired by the subject detection unit to; and a setting unit configured to set a control state of the tracking control unit. The setting unit sets the control state of the tracking control unit by selecting the set control state from a plurality of control states including a first state in which a tracking subject selectable mode is not set and a second state in which the mode is set and a tracking subject is not selected.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 8, 2017
    Inventor: Nobushige Wakamatsu
  • Publication number: 20170163879
    Abstract: A subject tracking apparatus is configured to track a subject in continuously obtained photographic images. In the photographic image, a position of the subject in the photographic image and reliability that represents subject probability are obtained. The position of the subject to a target position in the photographic image is moved a tracking state of the subject is changed on a basis of the reliability.
    Type: Application
    Filed: December 5, 2016
    Publication date: June 8, 2017
    Inventors: Ryosuke Tsuji, Nobushige Wakamatsu
  • Publication number: 20170155841
    Abstract: In an image-shake correction apparatus, if distortion is generated such that a screen peripheral portion of an image pickup screen of an image pickup element is reduced as compared with a screen center portion of the image pickup screen and if distortion is generated such that the screen center portion is reduced as compared with the screen peripheral portion, image-shake correction effect in the screen center portion is higher than image-shake correction effect in the screen peripheral portion.
    Type: Application
    Filed: February 13, 2017
    Publication date: June 1, 2017
    Inventor: Nobushige Wakamatsu
  • Publication number: 20170134649
    Abstract: An imaging device includes a subject detecting unit configured to detect a subject image from a captured image captured by an imaging element; a motion vector acquiring unit configured to acquire a motion vector of the subject image detected by the subject detecting unit, by comparing image signals in different frames acquired by the imaging element; a comparison unit configured to acquire a comparison result, by comparing a position of the subject image detected by the subject detecting unit with a predetermined position; and a moving unit configured to reduce movement of the position of the subject image in the imaging range, by moving the subject image on the basis of the motion vector and the comparison result.
    Type: Application
    Filed: October 20, 2016
    Publication date: May 11, 2017
    Inventor: Nobushige Wakamatsu