Patents by Inventor Takashi ONIKI

Takashi ONIKI 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: 9563941
    Abstract: An image processor includes a correction signal generator configured to generate a correction signal by calculating a difference between an image and an image obtained by applying an unsharp mask generated based on a PSF corresponding to an image-pickup conditions of an image-pickup optical system to the image, and a correction signal applier configured to sharpen the image by multiplying the correction signal generated by the generator by a constant and by adding a multiplied correction signal to the image.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: February 7, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Oniki, Koshi Hatakeyama
  • Publication number: 20170004604
    Abstract: An image processor includes a correction signal generator configured to generate a correction signal by calculating a difference between an image and an image obtained by applying an unsharp mask generated based on a PSF corresponding to an image-pickup conditions of an image-pickup optical system to the image, and a correction signal applier configured to sharpen the image by multiplying the correction signal generated by the generator by a constant and by adding a multiplied correction signal to the image.
    Type: Application
    Filed: September 16, 2016
    Publication date: January 5, 2017
    Inventors: Takashi Oniki, Koshi Hatakeyama
  • Publication number: 20160343111
    Abstract: An image processing apparatus acquires an input image generated by image pickup via an optical system, and perform unsharp mask processing for the input image using a filter generated based on information of a PSF of the optical system. The filter is generated based on an unsharp mask used for the unsharp mask processing, and includes two-dimensional data having filter coefficients that are arranged rotationally asymmetrically with respect to a filter coefficient corresponding to a target pixel in the input image in convoluting the filter with the input image. A peak position or a center of gravity position of the unsharp mask accords with a position of the filter coefficient corresponding to the target pixel in the filter.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 24, 2016
    Inventors: Takashi Oniki, Koshi Hatakeyama, Takayoshi Yokoyama
  • Patent number: 9438771
    Abstract: An image processing apparatus (100) includes a detection unit (102) configured to detect a first region in which one of a signal level of a color plane corresponding to at least one color filter of an image acquired from an image pickup element including a plurality of color filters and a signal level of a brightness plane generated from the image monotonically increases or monotonically decreases in a first direction in a predetermined section, a determination unit (103) configured to determine a second region in which color bleeding occurs, based on optical information on the color bleeding of an image pickup optical system and information on the first region, and a correction unit (104) configured to correct the image so as to reduce the color bleeding.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: September 6, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takayoshi Yokoyama, Koshi Hatakeyama, Takashi Oniki
  • Patent number: 9407801
    Abstract: A compound eye image pickup apparatus includes a plurality of optical systems (1110, 1120, 1130, 1140) including a first optical system having a longest focal length, and an optical system group of a plurality of second optical systems having focal lengths different from the focal length, and includes an image pickup element (1200) including a plurality of image pickup regions corresponding to the plurality of optical systems, and a condition expression below is satisfied, 0.15 2 × S p 2 × P AVE ? N t ? P SUM var × 2.0 × 10 6 where p (mm) represents a pixel pitch of the image pickup element, S (mm2) represents an area of the image pickup element, PAVE represents an average value of the number of pixels of each image pickup region, PSUM represents a sum of the number of the pixels of each image pickup region, Nt represents the number of the first optical systems, and var represents the number of the different focal lengths.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: August 2, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Oniki, Chiaki Inoue
  • Publication number: 20160110851
    Abstract: The image processing apparatus performs an image process on a first image produced by image capturing. The apparatus includes: a memory storing coefficient data containing coefficients to be used in an approximation function to approximate a PSF of an image capturing optical system, and a processor performs the image process. The processor produces an approximated point spread function by using the coefficient of the coefficient data corresponding to an optical state of the optical system in the image capturing and two of a pixel pitch of an image sensor, a kernel size of a filter to be used for a sharpening process on the first image and number of taps of the filter; produce the filter by using the approximated PSF; and produce a second image that is a sharpened image by applying the filter to the first image.
    Type: Application
    Filed: October 14, 2015
    Publication date: April 21, 2016
    Inventors: Takashi Oniki, Koshi Hatakeyama
  • Publication number: 20160080711
    Abstract: A non-transitory computer-readable storage medium storing an image processing program that causes a computer to execute an image processing method comprising acquiring step of acquiring an input image generated by image pickup through an optical system, generating step of generating a point spread function by using coefficient data of a function approximating a point spread function corresponding to an image-pickup condition of the optical system, and providing step of providing unsharp mask processing to the input image using a filter generated based on information of the point spread function generated by using the coefficient data. The filter is a filter having two-dimensional data.
    Type: Application
    Filed: September 14, 2015
    Publication date: March 17, 2016
    Inventors: Takashi Oniki, Koshi Hatakeyama
  • Publication number: 20160065941
    Abstract: The three-dimensional image capturing apparatus includes an image capturer performing image capturing to produce parallax images, an extractor extracting an object included in the parallax images, a first determiner determining whether the parallax images allow three-dimensional image fusion by an observer observing the parallax images, by using determination-purpose information on one of a parallax amount of the object between the parallax images and a distance to the object at the image capturing and a fusional limit, a second determiner determining a three-dimensional effect of the object in the observation of the parallax images, by using the determination-purpose information and a lowest allowable parallax value that is a lower limit of the parallax amount allowing the observer to feel the three-dimensional effect, and a controller controlling an image capturing parameter in the image capturer depending on determination results by the first and the second determiners.
    Type: Application
    Filed: August 31, 2015
    Publication date: March 3, 2016
    Inventors: Takashi Oniki, Chiaki Inoue
  • Publication number: 20150256745
    Abstract: A compound eye image pickup apparatus includes a plurality of optical systems (1110, 1120, 1130, 1140) including a first optical system having a longest focal length, and an optical system group of a plurality of second optical systems having focal lengths different from the focal length, and includes an image pickup element (1200) including a plurality of image pickup regions corresponding to the plurality of optical systems, and a condition expression below is satisfied, 0.15 2 × S p 2 × P AVE ? N t ? P SUM var × 2.0 × 10 6 where p (mm) represents a pixel pitch of the image pickup element, S (mm2) represents an area of the image pickup element, PAVE represents an average value of the number of pixels of each image pickup region, PSUM represents a sum of the number of the pixels of each image pickup region, Nt represents the number of the first optical systems, and var represents the number of the different focal lengths.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 10, 2015
    Inventors: Takashi Oniki, Chiaki Inoue
  • Patent number: 9100583
    Abstract: An image processing apparatus includes an image obtaining portion 200 that obtains a first and second images having exposures different from each other, a region selecting portion 203 that selects a first region different from a region containing a luminance saturation part from the first image, and that selects a second region corresponding to the region containing the luminance saturation part of the first image from the second image, an image restoration processing portion 201 that performs an image restoration processing using an image restoration filter generated based on an optical transfer function for the first region of the first image and the second region of the second image, and an image replacing portion 202 that replaces the region containing the luminance saturation part of the first image with the second region of the second image so as to synthesize the first and second regions to generate one image.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: August 4, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Oniki, Koshi Hatakeyama
  • Publication number: 20150097994
    Abstract: An image processing apparatus (100) includes a detection unit (102) configured to detect a first region in which one of a signal level of a color plane corresponding to at least one color filter of an image acquired from an image pickup element including a plurality of color filters and a signal level of a brightness plane generated from the image monotonically increases or monotonically decreases in a first direction in a predetermined section, a determination unit (103) configured to determine a second region in which color bleeding occurs, based on optical information on the color bleeding of an image pickup optical system and information on the first region, and a correction unit (104) configured to correct the image so as to reduce the color bleeding.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 9, 2015
    Inventors: Takayoshi Yokoyama, Koshi Hatakeyama, Takashi Oniki
  • Publication number: 20150097993
    Abstract: An image processor includes a correction signal generator configured to generate a correction signal by calculating a difference between an image and an image obtained by applying an unsharp mask generated based on a PSF corresponding to an image-pickup conditions of an image-pickup optical system to the image, and a correction signal applier configured to sharpen the image by multiplying the correction signal generated by the generator by a constant and by adding a multiplied correction signal to the image.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 9, 2015
    Inventors: Takashi Oniki, Koshi Hatakeyama
  • Patent number: 8988538
    Abstract: An image pickup apparatus includes a plurality of imaging optical systems having different focal lengths and each configured to form an optical image of an object, and a plurality of image sensors having image pickup areas each corresponding to one of the plurality of imaging optical systems and each configured to photoelectrically convert the optical image formed by a corresponding one of the imaging optical systems. The image pickup apparatus is configured to simultaneously capture a plurality of images by controlling the plurality of imaging optical systems and the plurality of image sensors. Each imaging optical system includes a focus lens unit configured to move in focusing and a fixed lens unit that is fixed in the focusing. The image pickup apparatus further includes a focus driver configured to move a plurality of focus lens units by equal moving amounts.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: March 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Chiaki Inoue, Tsunefumi Tanaka, Takashi Oniki
  • Publication number: 20140002688
    Abstract: An image pickup apparatus includes a plurality of imaging optical systems having different focal lengths and each configured to form an optical image of an object, and a plurality of image sensors having image pickup areas each corresponding to one of the plurality of imaging optical systems and each configured to photoelectrically convert the optical image formed by a corresponding one of the imaging optical systems. The image pickup apparatus is configured to simultaneously capture a plurality of images by controlling the plurality of imaging optical systems and the plurality of image sensors. Each imaging optical system includes a focus lens unit configured to move in focusing and a fixed lens unit that is fixed in the focusing. The image pickup apparatus further includes a focus driver configured to move a plurality of focus lens units by equal moving amounts.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 2, 2014
    Inventors: Chiaki INOUE, Tsunefumi TANAKA, Takashi ONIKI