Patents by Inventor Naoki Iwasaki

Naoki Iwasaki 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: 20240073522
    Abstract: An image capturing apparatus includes an object detection unit configured to detect an object from an image signal, a discriminating unit configured to discriminate a type of the object, a setting unit configured to set a focus detection region divided in a plurality of sub-regions corresponding to the region of the object, a focus detection unit configured to detect information about an in-focus position for each of the plurality of sub-regions, a prediction unit configured to predict an in-focus position according to a movement of the object in a depth direction, and a selection unit configured to select an in-focus position of which sub-region among the plurality of sub-regions to employ as the in-focus position of the object, in accordance with the type of the object and the in-focus position being predicted.
    Type: Application
    Filed: August 18, 2023
    Publication date: February 29, 2024
    Inventor: Naoki IWASAKI
  • Patent number: 11716536
    Abstract: A device includes a focus detection unit configured to detect a defocus amount based on a focus detection signal output from an image capturing device, an object detection unit configured to detect a specific object based on image data output from the image capturing device, and a processing unit configured to perform first obstacle detection processing detecting an obstacle based on characteristics of the defocus amount on the specific object, and to perform second obstacle detection processing detecting an obstacle higher in spatial frequency than the specific object.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: August 1, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Iwasaki, Yu Inagaki, Kuniaki Sugitani, Maiko Takao
  • Patent number: 11431913
    Abstract: An apparatus that moves a focus lens, performs a scan operation of sequentially acquiring a focus signal, acquires a focus position of the focus lens based on the focus signal, and includes: a determination unit configured to determine whether an object is blinking at a predetermined period, and a processing unit configured to perform a filtering process in a time axis direction on the acquired focus signal where the object is blinking at the predetermined period.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: August 30, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroaki Kurisu, Naoki Iwasaki
  • Publication number: 20210337129
    Abstract: A device includes a focus detection unit configured to detect a defocus amount based on a focus detection signal output from an image capturing device, an object detection unit configured to detect a specific object based on image data output from the image capturing device, and a processing unit configured to perform first obstacle detection processing detecting an obstacle based on characteristics of the defocus amount on the specific object, and to perform second obstacle detection processing detecting an obstacle higher in spatial frequency than the specific object.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 28, 2021
    Inventors: Naoki Iwasaki, Yu Inagaki, Kuniaki Sugitani, Maiko Takao
  • Patent number: 10893188
    Abstract: An imaging apparatus includes an imaging device that photoelectrically converts an optical image obtained through a focus lens. The focus lens is moved to a focus position set by focus detection performed based on image signals from the imaging device with a first aperture value. A first correction amount of the set focus position is acquired according to a difference between the first aperture value and a second aperture value to be used at a time of photographing. Photographing is executed at a determined focus position at the time of photographing, by a user's operation. If the first correction amount is larger than a predetermined amount, a focus position corrected according to the first correction amount is determined as the focus position at the time of photographing, and if not, the set focus position is determined as the focus position at the time of photographing.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: January 12, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaki Tokioka, Hiromi Kotoku, Hidetoshi Abe, Takeshi Omata, Kenya Fukabori, Naoki Iwasaki, Hiroaki Kurisu
  • Publication number: 20200314315
    Abstract: An apparatus that moves a focus lens, performs a scan operation of sequentially acquiring a focus signal, acquires a focus position of the focus lens based on the focus signal, and includes: a determination unit configured to determine whether an object is blinking at a predetermined period, and a processing unit configured to perform a filtering process in a time axis direction on the acquired focus signal where the object is blinking at the predetermined period.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Inventors: Hiroaki Kurisu, Naoki Iwasaki
  • Patent number: 10477101
    Abstract: A focus detection apparatus comprises: a reception unit configured to receive designation of a region within an image; a first setting unit configured to set one focus detection mode out of at least a first mode for performing focus detection with priority to a region of a subject and a second mode for performing focus detection with priority to the designated region; a second setting unit configured to set a focus detection region; a selection unit configured to select a region to focus on based on a focus detection result of the focus detection region; and a control unit, wherein the second setting unit, in the first mode, sets the focus detection region based on a result of a detection of a subject, and is the second mode, sets the focus detection region based on the designated region.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: November 12, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Naoki Iwasaki
  • Publication number: 20190238756
    Abstract: An imaging apparatus includes an imaging device that photoelectrically converts an optical image obtained through a focus lens. The focus lens is moved to a focus position set by focus detection performed based on image signals from the imaging device with a first aperture value. A first correction amount of the set focus position is acquired according to a difference between the first aperture value and a second aperture value to be used at a time of photographing. Photographing is executed at a determined focus position at the time of photographing, by a user's operation. If the first correction amount is larger than a predetermined amount, a focus position corrected according to the first correction amount is determined as the focus position at the time of photographing, and if not, the set focus position is determined as the focus position at the time of photographing.
    Type: Application
    Filed: January 25, 2019
    Publication date: August 1, 2019
    Inventors: Masaki Tokioka, Hiromi Kotoku, Hidetoshi Abe, Takeshi Omata, Kenya Fukabori, Naoki Iwasaki, Hiroaki Kurisu
  • Patent number: 10326925
    Abstract: A control apparatus (204, 212) includes a calculator (204) that calculates a defocus amount based on a first signal and a second signal that correspond to light beams passing through different pupil regions of an image capturing optical system (101, 102, 103) from each other, and a focus adjuster (212) that performs focus adjusting operation based on the defocus amount, and the focus adjuster is configured to change a detection property of the first signal and the second signal depending on a type of the focus adjusting operation.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: June 18, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsuya Kawanishi, Yohei Matsui, Naoki Iwasaki
  • Patent number: 10264173
    Abstract: An image capturing apparatus, comprises an image sensor having focus detection pixels configured to detect a phase difference of the subject image, a calculation unit configured to calculate a defocus amount of the subject image based on signals of the focus detection pixels, a focus control unit configured to adjust focus of the imaging optical system based on the defocus amount that was calculated, and a determination unit configured to determine whether or not the imaging optical system is in an in-focus state by comparing the defocus amount to a predetermined threshold value, wherein the determination unit sets a larger value for the predetermined threshold value in a case where the imaging optical system focuses on a moving subject than in a case where the imaging optical system focuses on a still subject.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: April 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Naoki Iwasaki
  • Patent number: 10244159
    Abstract: In an image capturing apparatus, an image sensing unit has a plurality of pixels and photoelectrically converts an object image formed by an optical imaging system including a focus lens and outputs an electrical image signal, a control unit controls at least a readout rate or an exposure condition independently for different regions of the image sensing unit, and a calculation unit calculates a plurality of focus evaluation values based on image signals read out from the pixels present in a focus detection area in one of the plurality of different regions at different focus lens positions, and find an in-focus position of the focus lens based on the focus evaluation values. The control unit takes an image signal read out from a first region among the plurality of different regions as an image signal for display.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: March 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuki Konishi, Naoki Iwasaki, Akiko Wada
  • Patent number: 10116857
    Abstract: An imaging apparatus includes: a focus detection unit that detects a defocus amount using the pair of parallax image signals; a control unit that controls adjustment of a focus position based on the defocus amount; a first determination unit that determines whether a subject with a repetitive pattern is being imaged in a focus detection area; and a second determination unit that determines whether a degree of image blurring is equal to or more than a predetermined degree of blurring. When the first determination unit determines that a subject with a repetitive pattern is being imaged and the second determination unit determines that a degree of image blurring is equal to or more than the predetermined degree of blurring, the control unit moves a focus lens to acquire a new defocus amount.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: October 30, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Naoki Iwasaki
  • Publication number: 20180077340
    Abstract: An imaging apparatus includes: a focus detection unit that detects a defocus amount using the pair of parallax image signals; a control unit that controls adjustment of a focus position based on the defocus amount; a first determination unit that determines whether a subject with a repetitive pattern is being imaged in a focus detection area; and a second determination unit that determines whether a degree of image blurring is equal to or more than a predetermined degree of blurring. When the first determination unit determines that a subject with a repetitive pattern is being imaged and the second determination unit determines that a degree of image blurring is equal to or more than the predetermined degree of blurring, the control unit moves a focus lens to acquire a new defocus amount.
    Type: Application
    Filed: September 7, 2017
    Publication date: March 15, 2018
    Inventor: Naoki Iwasaki
  • Publication number: 20180048805
    Abstract: A control apparatus (204, 212) includes a calculator (204) that calculates a defocus amount based on a first signal and a second signal that correspond to light beams passing through different pupil regions of an image capturing optical system (101, 102, 103) from each other, and a focus adjuster (212) that performs focus adjusting operation based on the defocus amount, and the focus adjuster is configured to change a detection property of the first signal and the second signal depending on a type of the focus adjusting operation.
    Type: Application
    Filed: August 4, 2017
    Publication date: February 15, 2018
    Inventors: Atsuya Kawanishi, Yohei Matsui, Naoki Iwasaki
  • Publication number: 20180007168
    Abstract: A method includes generating a description of a specific geographic context, and providing the description of the specific geographic context to a network server. The method also includes receiving, from the network server: (i) an ordered list of items, each including respective geographic data related to the specific geographic context, and (ii) an indication of an action to be executed at the client device when a user accesses an end of the list of items via the user interface. The list of items is presented to a user via a user interface, and, in response to an indication that the end of the list of items is reached by the user, the indicated action is executed.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 4, 2018
    Inventors: Naoki Iwasaki, Satoshi Niwa, Takahiro Kosakai, David Robert Gordon
  • Publication number: 20170366739
    Abstract: A focus detection apparatus comprises: a reception unit configured to receive designation of a region within an image; a first setting unit configured to set one focus detection mode out of at least a first mode for performing focus detection with priority to a region of a subject and a second mode for performing focus detection with priority to the designated region; a second setting unit configured to set a focus detection region; a selection unit configured to select a region to focus on based on a focus detection result of the focus detection region; and a control unit, wherein the second setting unit, in the first mode, sets the focus detection region based on a result of a detection of a subject, and is the second mode, sets the focus detection region based on the designated region.
    Type: Application
    Filed: June 19, 2017
    Publication date: December 21, 2017
    Inventor: Naoki Iwasaki
  • Patent number: 9826140
    Abstract: In an image capturing apparatus, an image sensing unit has a plurality of pixels and photoelectrically converts an object image formed by an optical imaging system including a focus lens and outputs an electrical image signal, a control unit controls at least a readout rate or an exposure condition independently for different regions of the image sensing unit, and a calculation unit calculates a plurality of focus evaluation values based on image signals read out from the pixels present in a focus detection area in one of the plurality of different regions at different focus lens positions, and find an in-focus position of the focus lens based on the focus evaluation values. The control unit takes an image signal read out from a first region among the plurality of different regions as an image signal for display.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: November 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuki Konishi, Naoki Iwasaki, Akiko Wada
  • Publication number: 20170289440
    Abstract: In an image capturing apparatus, an image sensing unit has a plurality of pixels and photoelectrically converts an object image formed by an optical imaging system including a focus lens and outputs an electrical image signal, a control unit controls at least a readout rate or an exposure condition independently for different regions of the image sensing unit, and a calculation unit calculates a plurality of focus evaluation values based on image signals read out from the pixels present in a focus detection area in one of the plurality of different regions at different focus lens positions, and find an in-focus position of the focus lens based on the focus evaluation values. The control unit takes an image signal read out from a first region among the plurality of different regions as an image signal for display.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 5, 2017
    Inventors: Kazuki Konishi, Naoki Iwasaki, Akiko Wada
  • Patent number: 9742983
    Abstract: An image capturing apparatus comprises a detection unit configured to detect a subject, a focus adjusting unit configured to adjust a position of a focusing lens of an imaging optical system so as to focus the imaging optical system on the subject, and a setting unit configured to set a focus detection area, which is an area within an image capturing screen where the focus adjusting unit detects focus, based on detection results of the detection unit, wherein the setting unit sets the focus detection area based on the position of the face of the subject in a case where the subject is moving, and sets the focus detection area based on the position of the eye of the subject in a case where the subject is still.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 22, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Naoki Iwasaki
  • Patent number: 9467618
    Abstract: An image pickup apparatus is configured such that if a monitoring unit detects that a focus evaluation value changes as much as or more than a predetermined threshold, a monitoring state caused by the monitoring unit transitions to a focus adjustment state by minute driving. The predetermined threshold in the monitoring performed in an in-focus position obtained by hill-climbing driving is greater than the predetermined threshold in the monitoring performed in an in-focus position obtained by the minute driving.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: October 11, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Naoki Iwasaki