Patents by Inventor Otoichi NAKATA

Otoichi NAKATA 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: 10755116
    Abstract: An image processing apparatus includes processing circuitry configured to obtain a range image having pixel values corresponding to a distance of an object in a plurality of captured images obtained by capturing the object on a road surface so as to extract pixel values from the range image, generate vertical direction distribution data indicating a frequency distribution of distance values in a vertical direction of the range image based on the extracted pixel values, calculate a height of the road surface in the range image before generation of the vertical direction distribution data is completed, and generate horizontal direction distribution data indicating a frequency distribution of distance values in a horizontal direction of the range image based on the extracted pixel values and the calculated height of the road surface.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: August 25, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Otoichi Nakata, Shinichi Sumiyoshi, Naoki Motohashi, Sadao Takahashi, Soichiro Yokota, Toshifumi Yamaai
  • Patent number: 10650271
    Abstract: An image processing apparatus includes a processor configured to generate vertical direction distribution data which is a distribution of distance values to a vertical direction of a distance image from the distance image having distance values according to distance of a road surface in captured images. There is an extraction of a pixel having the highest frequency value for each of the distance values from pixels in a search area. There is a detection of the road surface based on each pixel extracted.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 12, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Otoichi Nakata, Naoki Motohashi, Shinichi Sumiyoshi
  • Publication number: 20190286933
    Abstract: An image processing device extracts, for a target area that has sites having different flexibilities and where markers corresponding to the respective flexibilities are put on the sites, marking positions where the markers are put according to each type of the markers from each of a first image to be projected and being an image of the target area captured in advance and a second image being an image of the target area captured before projection of the first image; executes, based on the extracted marking positions according to each type of the markers, image processing to align the marking positions of the markers contained in the first image with the marking positions of the markers contained in the second image by a processing method corresponding to the types of the markers; and generates, based on the processed first image, a projection image to be projected onto the target area.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventor: Otoichi NAKATA
  • Publication number: 20180268229
    Abstract: An image processing apparatus includes an extracting unit configured to obtain a range image having pixel values corresponding to a distance of an object in a plurality of captured images obtained by capturing the object on a road surface so as to extract pixel values from the range image, a first generating unit configured to generate vertical direction distribution data indicating a frequency distribution of distance values in a vertical direction of the range image based on the extracted pixel values, a calculating unit configured to calculate a height of the road surface in the range image before generation of the vertical direction distribution data is completed, and a second generating unit configured to generate horizontal direction distribution data indicating a frequency distribution of distance values in a horizontal direction of the range image based on the extracted pixel values and the calculated height of the road surface.
    Type: Application
    Filed: May 22, 2018
    Publication date: September 20, 2018
    Inventors: Otoichi NAKATA, Shinichi Sumiyoshi, Naoki Motohashi, Sadao Takahashi, Soichiro Yokota, Toshifumi Yamaai
  • Publication number: 20170262734
    Abstract: An image processing apparatus includes a processor configured to generate vertical direction distribution data which is a distribution of distance values to a vertical direction of a distance image from the distance image having distance values according to distance of a road surface in captured images. There is an extraction of a pixel having the highest frequency value for each of the distance values from pixels in a search area. There is a detection of the road surface based on each pixel extracted.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 14, 2017
    Inventors: Otoichi NAKATA, Naoki MOTOHASHI, Shinichi SUMIYOSHI
  • Patent number: 9524696
    Abstract: An image projection device includes: a drive control unit that generates colors sequentially; a setting unit that sets a color of an illumination image; an image capturing control unit that receives, from the drive control unit, a synchronization signal that specifies a timing at which light of a color closest to the set color of the illumination image is not projected and causes an image of a projection surface to be captured in accordance with the timing that is specified by the synchronization signal; an illumination image detection unit that detects, from captured image data, an illumination image that is produced by illuminating the projection surface by an illuminating device; and an illumination image generation unit that generates projection image data obtained by combining given image data at a position at which the illumination image is detected.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: December 20, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Otoichi Nakata, Fumihiro Nakashige, Shinichi Sumiyoshi
  • Patent number: 9470966
    Abstract: The present invention is concerning an image projection apparatus comprising: a projecting unit that projects and displays on a projection surface each image in a time sharing manner for each of a plurality of color components, for an input image signal; a shooting unit that shoots a projected image on the projection surface; a shoot control unit that makes the shooting unit perform the shooting, when a detection mode of a irradiation point at which light is irradiated from an irradiation device on the projection surface is set, in timing shifted by a certain amount of time from a synchronized state to time sharing timing of each color component in the projecting unit; and an irradiation-point-position detecting unit that detects, from a projected image projected by the projecting unit, a position of the irradiation point on the image.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: October 18, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shinichi Sumiyoshi, Fumihiro Nakashige, Otoichi Nakata
  • Patent number: 9401129
    Abstract: An image projection device includes: a drive controller that causes generation of light of a specified color tone by a combination of light to be transmitted by a liquid crystal panel to project image data onto a projection plane; an image capturing controller that receives a synchronization signal that specifies a period in which the liquid crystal panel does not transmit light from the drive controller and causes capturing of an image of the projection plane according to the period that is specified by the synchronization signal; an illuminated image detector that detects, from the captured image of the image data, an illuminated image that is illuminated by an illuminating device on the projection plane; and an illuminated image generator that generates projection image data obtained by combining given image data in a position in which the illuminated image is detected.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: July 26, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Otoichi Nakata, Fumihiro Nakashige, Shinichi Sumiyoshi
  • Publication number: 20150049309
    Abstract: The present invention is concerning an image projection apparatus comprising: a projecting unit that projects and displays on a projection surface each image in a time sharing manner for each of a plurality of color components, for an input image signal; a shooting unit that shoots a projected image on the projection surface; a shoot control unit that makes the shooting unit perform the shooting, when a detection mode of a irradiation point at which light is irradiated from an irradiation device on the projection surface is set, in timing shifted by a certain amount of time from a synchronized state to time sharing timing of each color component in the projecting unit; and an irradiation-point-position detecting unit that detects, from a projected image projected by the projecting unit, a position of the irradiation point on the image.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 19, 2015
    Inventors: Shinichi SUMIYOSHI, Fumihiro Nakashige, Otoichi Nakata
  • Publication number: 20150042701
    Abstract: An image projection device includes: a drive control unit that generates colors sequentially; a setting unit that sets a color of an illumination image; an image capturing control unit that receives, from the drive control unit, a synchronization signal that specifies a timing at which light of a color closest to the set color of the illumination image is not projected and causes an image of a projection surface to be captured in accordance with the timing that is specified by the synchronization signal; an illumination image detection unit that detects, from captured image data, an illumination image that is produced by illuminating the projection surface by an illuminating device; and an illumination image generation unit that generates projection image data obtained by combining given image data at a position at which the illumination image is detected.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 12, 2015
    Inventors: Otoichi NAKATA, Fumihiro NAKASHIGE, Shinichi SUMIYOSHI
  • Patent number: 8944610
    Abstract: An image projection apparatus includes a light source; a projected image outputting unit having multiple mirrors arranged in a matrix, to which radiating light emitted from the light source while controlling an angle of a light reflection face of each of the mirrors; a control unit controls the angle of light reflection face of the mirrors using the a division half-toning control based on image data of a projected image, and settings of control parameters used for the time division half-toning control; and an image capturing device to capture the projected mage. When the control unit detects a false contour in a projected test pattern image based on image data of the projected test pattern image captured by the image capturing device, the control unit corrects the control parameters for the time division half-toning control based on detection of the false contour.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: February 3, 2015
    Assignee: Ricoh Company, Ltd.
    Inventor: Otoichi Nakata
  • Publication number: 20150029173
    Abstract: An image projection device includes: a drive controller that causes generation of light of a specified color tone by a combination of light to be transmitted by a liquid crystal panel to project image data onto a projection plane; an image capturing controller that receives a synchronization signal that specifies a period in which the liquid crystal panel does not transmit light from the drive controller and causes capturing of an image of the projection plane according to the period that is specified by the synchronization signal; an illuminated image detector that detects, from the captured image of the image data, an illuminated image that is illuminated by an illuminating device on the projection plane; and an illuminated image generator that generates projection image data obtained by combining given image data in a position in which the illuminated image is detected.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 29, 2015
    Inventors: Otoichi NAKATA, Fumihiro NAKASHIGE, Shinichi SUMIYOSHI
  • Patent number: 8894217
    Abstract: An image projection apparatus includes a light source; a projected image outputting unit having multiple mirrors arranged in a matrix, to which radiating light emitted from the light source while controlling an angle of a light reflection face of each of the mirrors; a control unit controls the angle of light reflection face of the mirrors using the a division half-toning control based on image data of a projected image, and settings of control parameters used for the time division half-toning control; and an image capturing device to capture the projected mage. When the control unit detects a false contour in a projected test pattern image based on image data of the projected test pattern image captured by the image capturing device, the control unit corrects the control parameters for the time division half-toning control based on detection of the false contour.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: November 25, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Otoichi Nakata
  • Publication number: 20130307995
    Abstract: An image projection apparatus includes a light source; a projected image outputting unit having multiple mirrors arranged in a matrix, to which radiating light emitted from the light source while controlling an angle of a light reflection face of each of the mirrors; a control unit controls the angle of light reflection face of the mirrors using the a division half-toning control based on image data of a projected image, and settings of control parameters used for the time division half-toning control; and an image capturing device to capture the projected mage. When the control unit detects a false contour in a projected test pattern image based on image data of the projected test pattern image captured by the image capturing device, the control unit corrects the control parameters for the time division half-toning control based on detection of the false contour.
    Type: Application
    Filed: April 10, 2013
    Publication date: November 21, 2013
    Inventor: Otoichi NAKATA