Patents by Inventor Risa Koizumi

Risa Koizumi 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: 10536624
    Abstract: An image pickup apparatus includes an imaging unit configured to capture a plurality of images while changing a focus position of an optical system, a setting unit configured to set a plurality of focus positions, a shake detection unit configured to detect a shake of the imaging unit, and a combination unit configured to combine a plurality of images. The setting unit of the image pickup apparatus changes distances between the plurality of focus positions based on a shake amount detected by the shake detection unit.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: January 14, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Risa Koizumi
  • Patent number: 10536632
    Abstract: According to an aspect of the invention, an imaging apparatus includes an imaging unit configured to read signals from pixels of an imaging element and continuously capture images, a determination unit configured to determine a reliability of focusing on the basis of a first focus detection signal output in a first imaging of the images, and a control unit configured to perform reading for acquiring a second focus detection signal from the pixels of the imaging element between the first imaging and a second imaging performed next to the first imaging in accordance with a determined reliability of focusing, in which the imaging unit performs the second imaging on the basis of the read second focus detection signal.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: January 14, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Risa Koizumi
  • Patent number: 10530986
    Abstract: There is provided an image capturing apparatus. An image capturing unit acquires a signal in a first acquisition mode or a second acquisition mode for each pixel of an image sensor. In the first acquisition mode, an image signal obtained by adding focus detection signals of a plurality of photoelectric conversion units of the pixel is acquired. In the second acquisition mode, the focus detection signals are acquired in addition to the image signal. The image capturing alternately captures a recording image and a focus detection image having a smaller number of pixels than the recording image, applies all pixels to the first acquisition mode when capturing the recording image, and applies at least a part of the pixels to the second acquisition mode when capturing the focus detection image.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: January 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Risa Koizumi
  • Patent number: 10491802
    Abstract: There is provided an image capturing apparatus. An image capturing unit acquires a signal in a first acquisition mode or a second acquisition mode for each pixel of an image sensor. In the first acquisition mode, an image signal obtained by adding focus detection signals of a plurality of photoelectric conversion units of the pixel is acquired. In the second acquisition mode, the focus detection signals are acquired in addition to the image signal. The image capturing alternately captures a recording image and a focus detection image having a smaller number of pixels than the recording image, applies all pixels to the first acquisition mode when capturing the recording image, and applies at least a part of the pixels to the second acquisition mode when capturing the focus detection image.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: November 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Risa Koizumi
  • Publication number: 20190149719
    Abstract: There is provided an image capturing apparatus. An image capturing unit acquires a signal in a first acquisition mode or a second acquisition mode for each pixel of an image sensor. In the first acquisition mode, an image signal obtained by adding focus detection signals of a plurality of photoelectric conversion units of the pixel is acquired. In the second acquisition mode, the focus detection signals are acquired in addition to the image signal. The image capturing alternately captures a recording image and a focus detection image having a smaller number of pixels than the recording image, applies all pixels to the first acquisition mode when capturing the recording image, and applies at least a part of the pixels to the second acquisition mode when capturing the focus detection image.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Inventor: Risa Koizumi
  • Patent number: 10218894
    Abstract: There is provided an image capturing apparatus. An image capturing unit acquires a signal in a first acquisition mode or a second acquisition mode for each pixel of an image sensor. In the first acquisition mode, an image signal obtained by adding focus detection signals of a plurality of photoelectric conversion units of the pixel is acquired. In the second acquisition mode, the focus detection signals are acquired in addition to the image signal. The image capturing alternately captures a recording image and a focus detection image having a smaller number of pixels than the recording image, applies all pixels to the first acquisition mode when capturing the recording image, and applies at least a part of the pixels to the second acquisition mode when capturing the focus detection image.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: February 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Risa Koizumi
  • Publication number: 20180288309
    Abstract: According to an aspect of the invention, an imaging apparatus includes an imaging unit configured to read signals from pixels of an imaging element and continuously capture images, a determination unit configured to determine a reliability of focusing on the basis of a first focus detection signal output in a first imaging of the images, and a control unit configured to perform reading for acquiring a second focus detection signal from the pixels of the imaging element between the first imaging and a second imaging performed next to the first imaging in accordance with a determined reliability of focusing, in which the imaging unit performs the second imaging on the basis of the read second focus detection signal.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 4, 2018
    Inventor: Risa Koizumi
  • Publication number: 20180124318
    Abstract: An image pickup apparatus includes an imaging unit configured to capture a plurality of images while changing a focus position of an optical system, a setting unit configured to set a plurality of focus positions, a shake detection unit configured to detect a shake of the imaging unit, and a combination unit configured to combine a plurality of images. The setting unit of the image pickup apparatus changes distances between the plurality of focus positions based on a shake amount detected by the shake detection unit.
    Type: Application
    Filed: October 11, 2017
    Publication date: May 3, 2018
    Inventor: Risa Koizumi
  • Publication number: 20170295313
    Abstract: There is provided an image capturing apparatus. An image capturing unit acquires a signal in a first acquisition mode or a second acquisition mode for each pixel of an image sensor. In the first acquisition mode, an image signal obtained by adding focus detection signals of a plurality of photoelectric conversion units of the pixel is acquired. In the second acquisition mode, the focus detection signals are acquired in addition to the image signal. The image capturing alternately captures a recording image and a focus detection image having a smaller number of pixels than the recording image, applies all pixels to the first acquisition mode when capturing the recording image, and applies at least a part of the pixels to the second acquisition mode when capturing the focus detection image.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 12, 2017
    Inventor: Risa Koizumi
  • Patent number: 9736359
    Abstract: There is provided an image capturing apparatus. A detection unit detects a state of a subject. A determining unit determines a shooting framerate, a frame recording ratio, and a shooting time based on the state of the subject. A shooting unit shoots a moving image at the determined shooting framerate over the determined shooting time and records the moving image in accordance with the determined recording ratio.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: August 15, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Risa Koizumi
  • Publication number: 20160073038
    Abstract: There is provided an image capturing apparatus. A detection unit detects a state of a subject. A determining unit determines a shooting framerate, a frame recording ratio, and a shooting time based on the state of the subject. A shooting unit shoots a moving image at the determined shooting framerate over the determined shooting time and records the moving image in accordance with the determined recording ratio.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventor: Risa Koizumi
  • Patent number: 9167173
    Abstract: An image capturing apparatus comprises an image capturing unit configured to repeatedly perform cyclic shooting operation including shooting with a first exposure condition and a second exposure condition different from the first exposure condition; and a correction unit configured to detect a first flicker among frames shot with the first exposure condition and perform flicker correction for a frame shot with the first exposure condition based on the first flicker and to detect a second flicker among frames shot with the second exposure condition and perform flicker correction for a frame shot with the second exposure condition based on the second flicker.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: October 20, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Risa Koizumi
  • Publication number: 20140267815
    Abstract: An image capturing apparatus comprises an image capturing unit configured to repeatedly perform cyclic shooting operation including shooting with a first exposure condition and a second exposure condition different from the first exposure condition; and a correction unit configured to detect a first flicker among frames shot with the first exposure condition and perform flicker correction for a frame shot with the first exposure condition based on the first flicker and to detect a second flicker among frames shot with the second exposure condition and perform flicker correction for a frame shot with the second exposure condition based on the second flicker.
    Type: Application
    Filed: February 21, 2014
    Publication date: September 18, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Risa Koizumi