Patents by Inventor Yohei HORIKAWA

Yohei HORIKAWA 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: 20190222773
    Abstract: Disclosed are an image processing apparatus that can generate a moving image having a movement shooting effect with a simple configuration and an image processing method. The image processing apparatus combines a plurality of parallax images in units of frames in accordance with a combining ratio, and generates moving image data in which an image obtained by the combining is included in frames. The image processing apparatus controls the combining ratio so as to temporally change in the moving image data.
    Type: Application
    Filed: June 1, 2016
    Publication date: July 18, 2019
    Inventors: Yohei Horikawa, Takeshi Ogawa
  • Patent number: 10341516
    Abstract: A rotation drive device includes a driven rotation member, a driving rotation member, a rotation relay member, a shaft, and a holder. The rotation relay member transmits only a unidirectional rotational driving force from the driving rotation member to the driven rotation member. The rotation relay member includes a housing and a cylindrical one-way clutch. A contact portion between the driving rotation member and the shaft is configured to rotate the driving rotation member and the shaft to transmit the driving force to an inner peripheral side of the cylindrical one-way clutch via the shaft. The driving rotation member includes a boss projected toward the holder and rotatably held in the holder. A portion of the shaft to support the driving rotation member and an inner wall surface of a through hole of the driving rotation member are shaped to rotate the shaft and the driving rotation member. together.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 2, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Daisuke Imaki, Yohei Osanai, Genta Hagiwara, Masatoshi Ishida, Tatsuaki Nagano, Satoshi Narai, Toshiyuki Horikawa, Yasunobu Youda, Takayuki Andoh, Kaoru Tada
  • Patent number: 10334161
    Abstract: An image processing apparatus includes a system controlling unit including a processor and a memory, the system controlling unit being configured to load and to execute an operation control program stored in the memory. The system controlling unit and the memory are configured to acquire light field data, including a plurality of divided image data, to perform an image processing including color correction processing to each of the plurality of divided image data, and to form image data by combining pixel signals of the plurality of the divided image data. Depths of field of the plurality of divided image data are deeper than those of the formed image data. The system controlling unit controls operation to perform the image processing and to form the image using the processed plurality of divided image data.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: June 25, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Shoda, Yohei Horikawa
  • Patent number: 9967451
    Abstract: An imaging apparatus includes an image pickup device having a plurality of photoelectric converters that receive light fluxes from an object that have passed through different pupil areas. A distance information generator detects light from the object and generates distance information regarding a distance of the object. The distance information generator is different from the image pickup device. A determining unit determines whether or not the object exists in a refocusable range in a process to an image signal obtained by an image pickup of the image pickup device, after the image pickup, on the basis of the distance information and a pupil division construction of the plurality of photoelectric converters. A control unit controls the image pickup of the object by the image pickup device in accordance with a result of the determination by the determining unit.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: May 8, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hayato Takahashi, Yohei Horikawa
  • Publication number: 20180035042
    Abstract: A control apparatus (105) includes a normalizer (400, 401) that performs normalization processing on a first signal and a second signal by using normalization coefficients related to the first signal and the second signal, respectively, a correlation calculator (402) that performs correlation calculation with respect to the normalized first and second signals, and a corrector (403, 800, 801) that corrects correlation data to cancel the normalization processing, and the correlation data is based on an output signal from the correlation calculator.
    Type: Application
    Filed: July 25, 2017
    Publication date: February 1, 2018
    Inventor: Yohei Horikawa
  • Patent number: 9794485
    Abstract: An image processing apparatus that corrects an image using an image signal obtained by performing shooting by an image sensor which includes a plurality of photoelectric conversion portions that correspond to each of a plurality of microlenses and performs photoelectric conversion on a light flux that enters via an imaging optical system including an image stabilization optical system configured to correct a camera shake, comprising: a first obtaining unit that obtains the image signal and a driving state of the image stabilization optical system at a time of image shooting; a second obtaining unit that obtains correction values for correcting variation in defocus amounts occurred due to driving of the image stabilization optical system; and a refocus unit that corrects the variation in defocus amounts by refocusing on the basis of the correction values.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: October 17, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yohei Horikawa
  • Patent number: 9686530
    Abstract: Provided is an image processing apparatus, including: a data acquisition unit configured to acquire light field data containing a plurality of parallax images; a setting unit configured to set a virtual focal plane of the light field data acquired by the data acquisition unit; a reconstruction unit configured to generate, based on the light field data acquired by the data acquisition unit, light field data in which a focal plane is moved to the virtual focal plane; a determination unit configured to determine a data reduction amount of the light field data generated by the reconstruction unit in accordance with a refocusable range of the light field data generated by the reconstruction unit; and a reduction unit configured to reduce an amount of data of the light field data generated by the reconstruction unit in accordance with the data reduction amount.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: June 20, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yohei Horikawa
  • Patent number: 9591203
    Abstract: An image processing apparatus, including a setting unit configured to set a focal plane of a still image, which is generated from moving image data including a plurality of frames, each of which is refocusable; a reconstruction unit configured to reconstruct a predetermined number of the frames of the moving image data in accordance with the focal plane of the still image, which is set by the setting unit, to thereby generate the predetermined number of refocused images; and a combining unit configured to combine the predetermined number of the refocused images, which are generated by the reconstruction unit, to thereby generate the still image.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: March 7, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomotaka Uekusa, Yohei Horikawa, Takeshi Ogawa
  • Patent number: 9591202
    Abstract: An image processing apparatus for processing imaging data, which is capable of generating a plurality of recomposed images respectively in focus at different subject distances, the image processing apparatus including an acquisition unit configured to acquire time-series imaging data capable of generating the recomposed image; a focal plane determination unit configured to determine a position of a focal plane in processing for generating the recomposed image; and a generation unit configured to generate recomposed-image data at the position of the focal plane determined by the focal plane determination unit, wherein the focal plane determination unit determines the position of the focal plane in the processing for generating the recomposed image based on the positions of the focal plane respectively corresponding to the time-series imaging data on which the processing for generating the recomposed image is to be performed.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: March 7, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Shoda, Yohei Horikawa
  • Publication number: 20160261801
    Abstract: An image capturing apparatus comprising: an image sensor that includes a plurality of photoelectric conversion portions that correspond to each of a plurality of microlenses, and performs photoelectric conversion on a light flux that enters via an image stabilization optical system; a refocus unit that performs refocus processing based on output from the image sensor; and a determination unit configured to, based on a shake signal, determine a drive amount of the image stabilization optical system, within a range in which variation in defocus amounts at positions of the image sensor, which occurs due to the image stabilization optical system being driven, falls within a range in which a defocus amount is movable by the refocus unit.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 8, 2016
    Inventor: Yohei Horikawa
  • Publication number: 20160261799
    Abstract: An image processing apparatus that corrects an image using an image signal obtained by performing shooting by an image sensor which includes a plurality of photoelectric conversion portions that correspond to each of a plurality of microlenses and performs photoelectric conversion on a light flux that enters via an imaging optical system including an image stabilization optical system configured to correct a camera shake, comprising: a first obtaining unit that obtains the image signal and a driving state of the image stabilization optical system at a time of image shooting; a second obtaining unit that obtains correction values for correcting variation in defocus amounts occurred due to driving of the image stabilization optical system; and a refocus unit that corrects the variation in defocus amounts by refocusing on the basis of the correction values.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 8, 2016
    Inventor: Yohei Horikawa
  • Publication number: 20160119606
    Abstract: Provided is an image processing apparatus, including: a data acquisition unit configured to acquire light field data containing a plurality of parallax images; a setting unit configured to set a virtual focal plane of the light field data acquired by the data acquisition unit; a reconstruction unit configured to generate, based on the light field data acquired by the data acquisition unit, light field data in which a focal plane is moved to the virtual focal plane; a determination unit configured to determine a data reduction amount of the light field data generated by the reconstruction unit in accordance with a refocusable range of the light field data generated by the reconstruction unit; and a reduction unit configured to reduce an amount of data of the light field data generated by the reconstruction unit in accordance with the data reduction amount.
    Type: Application
    Filed: October 22, 2015
    Publication date: April 28, 2016
    Inventor: Yohei Horikawa
  • Publication number: 20160094776
    Abstract: An imaging apparatus includes: an image pickup unit having a plurality of photoelectric converting units for receiving light fluxes from an object which passed through different pupil areas; a distance information generating unit configured to detect light from the object and generate distance information regarding a distance of the object; a determining unit configured to determine whether or not the object exists in a refocusable distance range by a process after an image pickup on the basis of the distance information and a pupil division construction of the plurality of photoelectric converting units; and a control unit configured to control the image pickup of the object by the image pickup unit in accordance with a result of the determination by the determining unit.
    Type: Application
    Filed: September 21, 2015
    Publication date: March 31, 2016
    Inventors: Hayato Takahashi, Yohei Horikawa
  • Publication number: 20160094784
    Abstract: The present invention provides an image processing apparatus that can prevent incorrect correction of an image, which originates in blurring, in image processing of a re-focus image. The image processing apparatus includes: a data acquiring unit which acquires light field data formed by an imaging unit having a pupil dividing function of an exit pupil of an imaging optical system for forming an optical image of an object; an image processing unit which performs a set image processing of image data; an image forming unit which forms the image data to be subjected to the set image processing, using the light field data; and a control unit which controls the image processing unit, to perform the set processing of the image data formed, to form the light field data corrected according to the predetermined image processing.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 31, 2016
    Inventors: Satoshi Shoda, Yohei Horikawa
  • Publication number: 20150281578
    Abstract: An image processing apparatus, including a setting unit configured to set a focal plane of a still image, which is generated from moving image data including a plurality of frames, each of which is refocusable; a reconstruction unit configured to reconstruct a predetermined number of the frames of the moving image data in accordance with the focal plane of the still image, which is set by the setting unit, to thereby generate the predetermined number of refocused images; and a combining unit configured to combine the predetermined number of the refocused images, which are generated by the reconstruction unit, to thereby generate the still image.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Tomotaka Uekusa, Yohei Horikawa, Takeshi Ogawa
  • Publication number: 20150264249
    Abstract: An image processing apparatus for processing imaging data, which is capable of generating a plurality of recomposed images respectively in focus at different subject distances, the image processing apparatus including an acquisition unit configured to acquire time-series imaging data capable of generating the recomposed image; a focal plane determination unit configured to determine a position of a focal plane in processing for generating the recomposed image; and a generation unit configured to generate recomposed-image data at the position of the focal plane determined by the focal plane determination unit, wherein the focal plane determination unit determines the position of the focal plane in the processing for generating the recomposed image based on the positions of the focal plane respectively corresponding to the time-series imaging data on which the processing for generating the recomposed image is to be performed.
    Type: Application
    Filed: March 9, 2015
    Publication date: September 17, 2015
    Inventors: Satoshi Shoda, Yohei Horikawa
  • Publication number: 20150185308
    Abstract: An image pickup apparatus including an image pickup unit including a two-dimensional, pixel array, and a photographing optical system including a tonus lens and a microlens array arranged between the image pickup unit and the focus lens, where each microlens corresponds to one of division blocks provided in case the two-dimensional pixel array is divided on a unit basis of a block including a predetermined number of pixels, detects an object included in a photographing image based on the readout pixel signals and controls, based on the object detection result, the reduction amount of the pixel signals read out from a division block corresponding to a detection area of the detected object in the photographing image and the reduction amount of the pixel signals read out from a division block corresponding to an area other than the defection area.
    Type: Application
    Filed: January 2, 2014
    Publication date: July 2, 2015
    Inventors: Katsuhiro Wada, Yohei Horikawa
  • Patent number: 9025011
    Abstract: A first image nonalignment amount, between a first type image and a second type image captured when the focusing lens is located at an in-focus position, of any subject, that is positioned a predetermined distance from the image capturing apparatus, is obtained. A second image nonalignment amount, between the first type image and the second type image obtained when the focusing lens is located at a predetermined reference position, of the subject is obtained. Then an image shift amount, for at least one of the first type image and the second type image captured when the focusing lens is located at the in-focus position, is determined, so that the difference between the first image nonalignment amount and the second image nonalignment amount falls within a predetermined range.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: May 5, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yohei Horikawa
  • Patent number: 8970742
    Abstract: An image processing apparatus capable of performing a correction process by filtering speedily and easily. A digital signal processor captures image data including effective area data from within a preset range of an image pickup device and ineffective area data from outside the preset range of the image pickup device. The digital signal processor superimposes a defective pixel detection signal and an ineffective image data detection signal to thereby generate a defective pixel determination signal. When a target pixel in the image data is determined based on the defective pixel determination signal as a determined-as-defective pixel, the digital signal processor corrects the value of the target pixel using values of the image data associated with ones, which are not determined, based on the defective pixel determination signal, as the determined-as-defective pixel, of pixels around the target pixel.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yohei Horikawa, Yuuichirou Kimijima
  • Patent number: 8970728
    Abstract: An image pickup apparatus having an obtaining unit for obtaining a pixel signal of a first image and a pixel signal of a second image having a parallax to the first image performs a position adjustment to the first and second images having the parallax, subtracts the pixel signal of the second image from the pixel signal of the first image with respect to a corresponding pixel, and obtains a specular reflection light component, thereby specifying light source color.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yohei Horikawa, Takeshi Ogawa