Patents by Inventor Shiki Takabayashi

Shiki Takabayashi 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: 9546863
    Abstract: According to the invention, reliability is calculated in consideration of an uncertain error due to noise in three-dimensional measurement, thereby obtaining correct reliability as compared with a conventional technique. To achieve this, a three-dimensional measuring apparatus includes a projector which projects a striped light pattern onto an object, a camera which captures a reflected light pattern from the object onto which the striped light pattern is projected, and a calculation processing unit which executes various arithmetic operations. The calculation processing unit includes a noise calculating unit and a reliability calculating unit.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: January 17, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shiki Takabayashi, Hiroshi Yoshikawa
  • Patent number: 9418291
    Abstract: A pattern light projection unit which stores information on pattern light including information on line patterns projects pattern light including line patterns having at least two lines and at least one reference line pattern serving as a reference of the line patterns on an object in accordance with the information on pattern light. An image pickup unit captures an image of the object to which the pattern light is projected. An information processing apparatus detects the reference line pattern and the line patterns from the captured image, and establishes correspondence between the information on the line patterns stored in the pattern light projection unit and the line patterns detected from the captured image in accordance with the topological positional relationship between the detected reference line pattern and the line patterns so as to identify the line patterns.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: August 16, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuri Sonoda, Shiki Takabayashi
  • Patent number: 9217636
    Abstract: A pattern light projection unit which stores information on pattern light including information on line patterns projects pattern light including line patterns having at least two lines and at least one reference line pattern serving as a reference of the line patterns on an object in accordance with the information on pattern light. An image pickup unit captures an image of the object to which the pattern light is projected. An information processing apparatus detects the reference line pattern and the line patterns from the captured image, and establishes correspondence between the information on the line patterns stored in the pattern light projection unit and the line patterns detected from the captured image in accordance with the topological positional relationship between the detected reference line pattern and the line patterns so as to identify the line patterns.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: December 22, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuri Sonoda, Shiki Takabayashi
  • Patent number: 9147247
    Abstract: A three-dimensional measurement apparatus includes a detection unit configured to detect, in an image captured by a capture unit, position information of a pattern on a capture pixel surface, which is projected to a plurality of pattern detection areas preset on the same plane in a measurement space, and a corresponding relationship calculation unit configured to calculate, using the position information, a corresponding relationship between the pattern on a projection pixel surface of a projection unit detected in advance before measurement and the pattern on the projection pixel surface of the projection unit at the time of measurement.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: September 29, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shiki Takabayashi
  • Patent number: 9046355
    Abstract: A measuring apparatus includes a projection control unit configured to cause a projection unit to project, onto an object, a first light pattern with light and dark portions, a second light pattern, which is smaller in distance between the light and dark portions than that of the first light pattern and has a boundary position between the light and dark portions common to the first light pattern, and a third light pattern in which the light and dark portions of the second light pattern are reversed to each other, an acquisition unit configured to acquire a first captured image of the object onto which the first light pattern is projected, a second captured image of the object onto which the second light pattern is projected, and a third captured image of the object onto which the third light pattern is projected, and a calculation unit configured to calculate the boundary position between the light and dark portions of the first captured image based on the second and the third captured image to measure the po
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: June 2, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shiki Takabayashi, Hiroshi Yoshikawa
  • Patent number: 9007602
    Abstract: A three-dimensional measurement apparatus includes a projection unit configured to project a plurality of types of stripe pattern light. The projection unit projects stripe pattern light, which can be obtained by shifting stripe pattern light whose reliability calculated by the calculation unit is equal to or greater than a threshold value by a predetermined cycle, on the object.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: April 14, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shiki Takabayashi
  • Patent number: 8970853
    Abstract: A three-dimensional measurement apparatus for calculating three-dimensional shape information of a target object, comprising: capturing means for capturing reflected pattern light of stripe pattern light formed by alternately arranging a bright portion and a dark portion as first image data, and capturing reflected pattern light of reversed stripe pattern light formed by reversing the bright portion and the dark portion of the stripe pattern light as second image data; determination means for determining a boundary position between the bright portion and the dark portion based on the first image data and the second image data; and reliability calculation means for calculating a reliability indicating accuracy of the boundary position from a correlation between a first luminance gradient of the first image data and a second luminance gradient of the second image data.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shiki Takabayashi, Tetsuri Sonoda
  • Publication number: 20140168662
    Abstract: According to the invention, reliability is calculated in consideration of an uncertain error due to noise in three-dimensional measurement, thereby obtaining correct reliability as compared with a conventional technique. To achieve this, a three-dimensional measuring apparatus includes a projector which projects a striped light pattern onto an object, a camera which captures a reflected light pattern from the object onto which the striped light pattern is projected, and a calculation processing unit which executes various arithmetic operations. The calculation processing unit includes a noise calculating unit and a reliability calculating unit.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 19, 2014
    Applicant: Canon Kabushiki Kaisha
    Inventors: Shiki Takabayashi, Hiroshi Yoshikawa
  • Patent number: 8627400
    Abstract: A moving image reproducing apparatus that does not inform the occurrence of any high light scene when high light scenes occur respectively in the images displayed in a main picture and a sub picture, and a control method of the moving image reproducing apparatus are provided. It can be determined whether the image displayed in the main picture is the high light scene or not when the image displayed in the sub picture is the high light scene, by detecting the high light scenes displayed respectively in the main picture and the sub picture. If the image displayed in the main picture is also the high light scene when the image displayed in the sub picture becomes the high light scene, then the control of not informing a viewer of the occurrence of the high light scene of the image displayed in the sub picture is performed.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: January 7, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shiki Takabayashi
  • Publication number: 20130329942
    Abstract: A pattern light projection unit which stores information on pattern light including information on line patterns projects pattern light including line patterns having at least two lines and at least one reference line pattern serving as a reference of the line patterns on an object in accordance with the information on pattern light. An image pickup unit captures an image of the object to which the pattern light is projected. An information processing apparatus detects the reference line pattern and the line patterns from the captured image, and establishes correspondence between the information on the line patterns stored in the pattern light projection unit and the line patterns detected from the captured image in accordance with the topological positional relationship between the detected reference line pattern and the line patterns so as to identify the line patterns.
    Type: Application
    Filed: June 11, 2012
    Publication date: December 12, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuri Sonoda, Shiki Takabayashi
  • Publication number: 20130108104
    Abstract: A pattern light projection unit which stores information on pattern light including information on line patterns projects pattern light including line patterns having at least two lines and at least one reference line pattern serving as a reference of the line patterns on an object in accordance with the information on pattern light. An image pickup unit captures an image of the object to which the pattern light is projected. An information processing apparatus detects the reference line pattern and the line patterns from the captured image, and establishes correspondence between the information on the line patterns stored in the pattern light projection unit and the line patterns detected from the captured image in accordance with the topological positional relationship between the detected reference line pattern and the line patterns so as to identify the line patterns.
    Type: Application
    Filed: December 20, 2010
    Publication date: May 2, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuri Sonoda, Shiki Takabayashi
  • Publication number: 20130076896
    Abstract: A three-dimensional measurement apparatus for calculating three-dimensional shape information of a target object, comprising: capturing means for capturing reflected pattern light of stripe pattern light formed by alternately arranging a bright portion and a dark portion as first image data, and capturing reflected pattern light of reversed stripe pattern light formed by reversing the bright portion and the dark portion of the stripe pattern light as second image data; determination means for determining a boundary position between the bright portion and the dark portion based on the first image data and the second image data; and reliability calculation means for calculating a reliability indicating accuracy of the boundary position from a correlation between a first luminance gradient of the first image data and a second luminance gradient of the second image data.
    Type: Application
    Filed: June 9, 2011
    Publication date: March 28, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shiki Takabayashi, Tetsuri Sonoda
  • Publication number: 20130046506
    Abstract: A three-dimensional measurement apparatus includes a detection unit configured to detect, in an image captured by a capture unit, position information of a pattern on a capture pixel surface, which is projected to a plurality of pattern detection areas preset on the same plane in a measurement space, and a corresponding relationship calculation unit configured to calculate, using the position information, a corresponding relationship between the pattern on a projection pixel surface of a projection unit detected in advance before measurement and the pattern on the projection pixel surface of the projection unit at the time of measurement.
    Type: Application
    Filed: July 27, 2012
    Publication date: February 21, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Shiki Takabayashi
  • Publication number: 20120133954
    Abstract: A measuring apparatus includes a projection control unit configured to cause a projection unit to project, onto an object, a first light pattern with light and dark portions, a second light pattern, which is smaller in distance between the light and dark portions than that of the first light pattern and has a boundary position between the light and dark portions common to the first light pattern, and a third light pattern in which the light and dark portions of the second light pattern are reversed to each other, an acquisition unit configured to acquire a first captured image of the object onto which the first light pattern is projected, a second captured image of the object onto which the second light pattern is projected, and a third captured image of the object onto which the third light pattern is projected, and a calculation unit configured to calculate the boundary position between the light and dark portions of the first captured image based on the second and the third captured image to measure the po
    Type: Application
    Filed: July 28, 2010
    Publication date: May 31, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shiki Takabayashi, Hiroshi Yoshikawa
  • Publication number: 20120089364
    Abstract: A three-dimensional measurement apparatus includes a projection unit configured to project a plurality of types of stripe pattern light. The projection unit projects stripe pattern light, which can be obtained by shifting stripe pattern light whose reliability calculated by the calculation unit is equal to or greater than a threshold value by a predetermined cycle, on the object.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 12, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Shiki Takabayashi
  • Publication number: 20090021642
    Abstract: A moving image reproducing apparatus that does not inform the occurrence of any high light scene when high light scenes occur respectively in the images displayed in a main picture and a sub picture, and a control method of the moving image reproducing apparatus are provided. It can be determined whether the image displayed in the main picture is the high light scene or not when the image displayed in the sub picture is the high light scene, by detecting the high light scenes displayed respectively in the main picture and the sub picture. If the image displayed in the main picture is also the high light scene when the image displayed in the sub picture becomes the high light scene, then the control of not informing a viewer of the occurrence of the high light scene of the image displayed in the sub picture is performed.
    Type: Application
    Filed: June 23, 2008
    Publication date: January 22, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Shiki Takabayashi