Patents by Inventor Shinichi SUMIYOSHI

Shinichi SUMIYOSHI 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: 10810749
    Abstract: An image processing apparatus includes: a distance histogram information generating means configured to generate distance histogram information representing a frequency distribution of distance values in each of a plurality of row regions obtained by division of a captured image in an up-down direction; and a movement surface information processing means configured to: extract a group of distance values matching a feature represented by distance values of the movement surface for each of a plurality of segments obtained by segmentation of the distance histogram information according to the distance values; execute, for a segment where a group of distance values extracted does not satisfy a predetermined error condition, processing of generating information on the movement surface using the group of distance values; and execute, for a segment where a group of distance values extracted satisfies the predetermined error condition, predetermined error processing without using the group of distance values.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: October 20, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shinichi Sumiyoshi, Naoki Motohashi, Toshifumi Yamaai, Sadao Takahashi
  • 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: 10748014
    Abstract: According to an embodiment, a processing device includes a generating unit, a detecting unit, and a determining unit. The generating unit is configured to generate two-dimensional distribution information of an object, the two-dimensional distribution information associating between at least a lateral direction distance and a depth direction distance of the object. The detecting unit is configured to detect a continuous area having continuity in a depth direction in the two-dimensional distribution information. The determining unit is configured to determine whether the continuous area represents a detection target.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: August 18, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yuu Yamada, Soichiro Yokota, Sadao Takahashi, Shinichi Sumiyoshi
  • Patent number: 10733459
    Abstract: An image processing device includes: a generating unit that generates, based on a distance image, two-dimensional distribution information indicating a two-dimensional distribution of an object, in which a distance in a horizontal direction, a distance in a depth direction, and a frequency value corresponding to the distances are related; and a labeling unit that conducts a labeling process by conducting search on the two-dimensional distribution information multiple times, detecting a pixel having the frequency value that is more than a predetermined threshold during each search, and assigning a label that is different in each times of search, wherein the labeling unit conducts a first labeling process by selecting a pixel having the frequency value that is more than the threshold from pixels that abut a pixel being searched in a search direction and assigning the label when the label is not assigned to the pixel selected.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: August 4, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yuu Yamada, Soichiro Yokota, Sadao Takahashi, Shinichi Sumiyoshi
  • 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
  • Patent number: 10580155
    Abstract: An image processing apparatus includes a processor configured to acquire a parallax image having pixel values according to a parallax of an object in a plurality of captured images, extract first pixel values from a first area of the parallax image at a first rate, extract second pixel values from a second area of the parallax image at a second rate, and generate data indicating a parallax distribution of the object in the plurality of captured images based on the extracted first and second pixel values.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: March 3, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Shinichi Sumiyoshi
  • Publication number: 20190026569
    Abstract: An image processing device includes: a generating unit that generates, based on a distance image, two-dimensional distribution information indicating a two-dimensional distribution of an object, in which a distance in a horizontal direction, a distance in a depth direction, and a frequency value corresponding to the distances are related; and a labeling unit that conducts a labeling process by conducting search on the two-dimensional distribution information multiple times, detecting a pixel having the frequency value that is more than a predetermined threshold during each search, and assigning a label that is different in each times of search, wherein the labeling unit conducts a first labeling process by selecting a pixel having the frequency value that is more than the threshold from pixels that abut a pixel being searched in a search direction and assigning the label when the label is not assigned to the pixel selected.
    Type: Application
    Filed: September 10, 2018
    Publication date: January 24, 2019
    Inventors: Yuu YAMADA, Soichiro Yokota, Sadao Takahashi, Shinichi Sumiyoshi
  • Publication number: 20190003822
    Abstract: An image processing apparatus includes processing circuitry configured to generate a first map formed of pixels that are associated with x coordinate information, distance information, and frequency values; search for a target pixel satisfying a predetermined condition among the pixels in the first map, the searching being performed from the pixels that are near towards the pixels that are far away as indicated by the distance information; and validate pixels surrounding the target pixel in the first map, together with the target pixel.
    Type: Application
    Filed: September 5, 2018
    Publication date: January 3, 2019
    Inventors: Sadao TAKAHASHI, Seiya AMANO, Hiroyoshi SEKIGUCHI, Soichiro YOKOTA, Yuu YAMADA, Shinichi SUMIYOSHI
  • Publication number: 20180365846
    Abstract: An image processing apparatus includes: a distance histogram information generating means configured to generate distance histogram information representing a frequency distribution of distance values in each of a plurality of row regions obtained by division of a captured image in an up-down direction; and a movement surface information processing means configured to: extract a group of distance values matching a feature represented by distance values of the movement surface for each of a plurality of segments obtained by segmentation of the distance histogram information according to the distance values; execute, for a segment where a group of distance values extracted does not satisfy a predetermined error condition, processing of generating information on the movement surface using the group of distance values; and execute, for a segment where a group of distance values extracted satisfies the predetermined error condition, predetermined error processing without using the group of distance values.
    Type: Application
    Filed: August 27, 2018
    Publication date: December 20, 2018
    Inventors: Shinichi SUMIYOSHI, Naoki MOTOHASHI, Toshifumi YAMAAI, Sadao TAKAHASHI
  • Publication number: 20180357783
    Abstract: An object detection device includes a map generator configured to generate, based on a distance image that includes distance information for each coordinate, a first map in which the coordinate in a horizontal direction of the distance image is associated with the distance information, and a second map in which the coordinate in the horizontal direction of the distance image is associated with the distance information, the second map having a lower resolution than the first map; and an object detector configured to detect an object based on the first map when a distance represented by the distance information is within a first range, and to detect an object based on the second map when a distance represented by the distance information is within a second range.
    Type: Application
    Filed: August 1, 2018
    Publication date: December 13, 2018
    Inventors: Sadao TAKAHASHI, Yuji Takahashi, Shinichi Sumiyoshi, Yuu Yamada, Seiya Amano, Soichiro Yokota, Hiroyoshi Sekiguchi
  • Publication number: 20180300562
    Abstract: According to an embodiment, a processing device includes a generating unit, a detecting unit, and a determining unit. The generating unit is configured to generate two-dimensional distribution information of an object, the two-dimensional distribution information associating between at least a lateral direction distance and a depth direction distance of the object. The detecting unit is configured to detect a continuous area having continuity in a depth direction in the two-dimensional distribution information. The determining unit is configured to determine whether the continuous area represents a detection target.
    Type: Application
    Filed: June 26, 2018
    Publication date: October 18, 2018
    Inventors: Yuu YAMADA, Soichiro Yokota, Sadao Takahashi, Shinichi Sumiyoshi
  • 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
  • Patent number: 9787960
    Abstract: A projection control unit performs control such that a first pattern image in which first feature points are arranged is caused to be projected on a projection surface, and a second pattern image including second feature points corresponding to the first feature points is caused to be projected on a planar projection surface. An acquisition unit acquires, from a photographing unit, a first photographed image of the projected first pattern image and a second photographed image of the second pattern image. An extraction unit extracts second connected components in which the second feature points are connected in a predetermined direction and first connected components in which the first feature points are connected. A shift amount calculation unit calculates shift amounts of the first connected components with respect to the second connected components. A first calculation unit calculates correction information for correcting a projection target image based on the shift amounts.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: October 10, 2017
    Assignee: RICOH COMPANY, LIMITED
    Inventor: Shinichi Sumiyoshi
  • 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: 9759548
    Abstract: An image processing apparatus includes: an imaging unit configured to take an image of an area including an object on which an image is projected and to acquire image data; a distance measuring unit configured to calculate distance data relevant to a distance between the object and the imaging unit based on the image data; a plane estimating unit configured to estimate a plane corresponding to the object based on the distance data; and a correction information calculating unit configured to calculate correction information relevant to correction of an image to be projected based on the distance data and plane information relevant to the plane.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: September 12, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shinichi Sumiyoshi, Fumihiro Hasegawa
  • Patent number: 9696613
    Abstract: An image processing apparatus includes an imaging unit configured to image a region including a target on which an image is projected to acquire imaged data, a distance measuring unit configured to compute distance data associated with a distance between the target and the imaging unit based on the imaged data acquired from the imaging unit, a plane estimating unit configured to estimate a plane corresponding to the target based on the distance data, and a range specifying unit configured to generate image data associated with the region based on the imaged data and specify a projectable range to the target based on the image data and in formation associated with the plane.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: July 4, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Fumihiro Hasegawa, Shinichi Sumiyoshi
  • Publication number: 20170124725
    Abstract: An image processing apparatus includes a processor configured to acquire a parallax image having pixel values according to a parallax of an object in a plurality of captured images, extract first pixel values from a first area of the parallax image at a first rate, extract second pixel values from a second area of the parallax image at a second rate, and generate data indicating a parallax distribution of the object in the plurality of captured images based on the extracted first and second pixel values.
    Type: Application
    Filed: October 26, 2016
    Publication date: May 4, 2017
    Inventor: 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: 9443294
    Abstract: This invention is concerning an image correction system that includes an image-capturing unit configured to acquire a captured image by capturing a subject; a tilt recognition unit configured to recognize tilt of an image-capturing direction of the image-capturing unit relative to an image-capturing direction in which the image-capturing unit being directly opposite to the subject captures the subject; a first correction unit configured to generate a corrected image by correcting distortion in the captured image due to the tilt; and a second correction unit configured to acquire a corrected captured image by correcting non-linear distortion in the corrected image.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: September 13, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventor: Shinichi Sumiyoshi