Patents by Inventor Hiroyoshi Sekiguchi

Hiroyoshi Sekiguchi 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: 10387733
    Abstract: A processing apparatus includes a distance image acquirer, a moving-object detector, and a danger-level determining unit. The distance image acquirer acquires a distance image containing distance information of each pixel. The moving-object detector detects a moving object from the distance image. The danger-level determining unit determines a danger level of the moving object by use of the distance image, and outputs the danger level to a controller that controls a controlled unit in accordance with the danger level.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: August 20, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Soichiro Yokota, Tomoko Ishigaki, Hiroyoshi Sekiguchi, Kenichiroh Saisho
  • Publication number: 20190228537
    Abstract: An image processing method of generating a range image is provided. The method includes a step of detecting a distance to the object as a measured distance, by a distance measurement unit; a step of performing, by an image processing unit, integration of the distance with a matching evaluation value of a pixel in a stereogram corresponding to a location on the object of which the distance is detected by the distance measurement unit, among a plurality of pixels in the stereogram each including a corresponding matching evaluation value; and a step of generating a range image based on a result of the integration. The generating step is performed after the integration.
    Type: Application
    Filed: January 22, 2019
    Publication date: July 25, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroyoshi SEKIGUCHI, Soichiro YOKOTA, Kenichiroh SAISHO
  • Patent number: 10198830
    Abstract: An information processing apparatus includes a correlation unit that correlates distance information indicating a distance to an emission position of electromagnetic waves emitted in a shooting direction of a plurality of image pickup units with a first pixel in a first image that constitutes images taken by the image pickup units, the distance information being obtained based on reflected waves of the electromagnetic waves and the first pixel corresponding to the emission position of the electromagnetic waves, and a generation unit that generates a parallax image by using the distance information correlated with the first pixel for parallax computation of pixels in a second image that constitutes the images.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: February 5, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyoshi Sekiguchi, Soichiro Yokota, Shuichi Suzuki, Shin Aoki, Haike Guan, Jun Yoshida, Mitsuru Nakajima, Hideomi Fujimoto
  • Publication number: 20190012798
    Abstract: According to an embodiment, an information processing apparatus includes a calculating unit and a discarding unit. The calculating unit is configured to calculate a distance between two objects, detected based on distance information on the objects that are overlapped in detection areas of the objects, in a depth direction in the detection areas. The discarding unit is configured to determine whether each of the two objects in the detection areas is to be discarded by using a method that corresponds to the distance calculated by the calculating unit.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 10, 2019
    Inventors: Seiya AMANO, Hiroyoshi SEKIGUCHI, Soichiro YOKOTA
  • Patent number: 10178361
    Abstract: To achieve an image pickup element that can utilize polarized light as well as non-polarized light to image or capture an object, an image pickup element is provided to an imaging apparatus that forms an image of an object to be imaged onto a light-receiving surface of an image sensor, acquires a polarized filter image together with a regular luminance image, and executes image processing on the acquired images. The image pickup element includes, on a light-receiving surface LRS of the image sensor IMS, a polarizing filter PFL including at least two kinds of pixels having different transmission and polarization properties from each other.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: January 8, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Izumi Itoh, Masayuki Fujishima, Sukehiro Kimura, Hiroyoshi Sekiguchi, Yuji Takahashi
  • Publication number: 20190005691
    Abstract: An image processing apparatus includes processing circuitry configured to generate a map formed of pixels that indicate information including left and right position information, distance information, and frequency values associated with the pixels; detect a pixel block formed of a plurality of the pixels having a common feature amount in the map; and generate a detection frame defining a search target region used for detecting a body from the distance information, based on the information indicated by the pixels forming the detected pixel block.
    Type: Application
    Filed: September 11, 2018
    Publication date: January 3, 2019
    Inventors: Sadao TAKAHASHI, Hiroyoshi SEKIGUCHI
  • 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
  • Patent number: 10171796
    Abstract: A moving body system includes an imaging device attachable to a moving body, a visual line direction changing mechanism configured to change a visual line direction of the imaging device and a control unit configured to change the visual line direction of the imaging device in accordance with changing of a movement direction of the moving body.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: January 1, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroyoshi Sekiguchi, Eita Watanabe
  • 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
  • Patent number: 10151840
    Abstract: A measuring system includes a first measuring unit which measures an object in front of a moving body in a first measuring area, a second measuring unit which measures the object in a second measuring area, the second measuring area being different from the first measuring area, a determining unit which determines whether a movement of the object satisfies a predetermined condition based on a measuring result of the first measuring unit, and a controller which causes the second measuring unit to start measuring the object in response to an event in which the determining unit determines that the object satisfies the predetermined condition and at least part of the object deviates from the first measuring area.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: December 11, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masahiko Itoh, Hiroyoshi Sekiguchi
  • Publication number: 20180330481
    Abstract: Disclosed is an image processing apparatus that includes one or more processors; and a memory storing instructions, which when executed by the one or more processors, cause the one or more processors to: generate distribution data indicating a frequency distribution of horizontal distance values of a range image based on the range image having pixel values according to distance of an object in a plurality of captured images; detect an object based on the distribution data with respect to a range image; predict a predicted position of the object in a current frame based on the distribution data with respect to range images of a plurality of previous frames; and integrate a plurality of objects detected by the detector based on the predicted position to track an integrated object in subsequent frames.
    Type: Application
    Filed: July 25, 2018
    Publication date: November 15, 2018
    Inventors: Genki WATANABE, Hiroyoshi Sekiguchi, Soichiro Yokota, Seiya Amano, Yuu Yamada, Keito Sawada
  • Publication number: 20180330509
    Abstract: Disclosed is an image processing apparatus that includes one or more processors; and a memory, the memory storing instructions. When executed by the one or more processors, cause the one or more processors to: generate distribution data indicating a frequency distribution of horizontal distance values of a range image based on the range image having pixel values according to distance of an object in a plurality of captured images; predict a predicted position of the object in the distribution data with respect to a range image of a current frame, based on the distribution data with respect to range images of a plurality of previous frames; and continue tracking of the object, based on a similarity between a region of the object in a previous frame and a region in the current frame with respect to the predicted position of the object.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Inventors: Genki Watanabe, Keito Sawada, Hiroyoshi Sekiguchi
  • Publication number: 20180285661
    Abstract: An image processing device includes a first extracting unit, a second extracting unit, a face detecting unit, a first apex detecting unit, and a decider. The first extracting unit is configured to extract, based on distance information regarding an object, a first area representing the object. The second extracting unit is configured to extract contour directions of a contour of the first area. The face detecting unit is configured to detect a first face in the first area, based on the contour directions extracted by the second extracting unit. The first apex detecting unit is configured to detect a first apex indicating a boundary of the first face. The decider is configured to decide on a principal face of the object represented by the first area, based on at least the first face and the first apex.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Inventors: Seiya AMANO, Hiroyoshi Sekiguchi, Soichiro Yokota
  • Publication number: 20180276837
    Abstract: An image processing device includes: a first generating unit configured to generate, based on a distance image generated from a plurality of taken images imaged by a plurality of imaging units in a travelling direction, and made from distance values corresponding to the travelling direction, a first image indicating a frequency distribution associating actual distances in a direction orthogonal to the travelling direction with the distance values; a second generating unit configured to generate, based on the distance image, a second image indicating a frequency distribution associating a horizontal direction of the distance image with the distance values; a first processing unit configured to detect a face of an object represented by the first image, using at least the first image; and a second processing unit configured to identify a type of the face of the object using at least the second image.
    Type: Application
    Filed: May 29, 2018
    Publication date: September 27, 2018
    Inventors: Seiya AMANO, Hiroyoshi Sekiguchi, Soichiro Yokota
  • Publication number: 20180276835
    Abstract: According to an embodiment, an image processing apparatus includes a first extracting unit, a second extracting unit, and a detecting unit. The first extracting unit is configured to extract a first region in which an object is represented, from a distance image that is drawn using distance information, based on the distance information of the object calculated from an image of the object captured by an image capturing unit. The second extracting unit is configured to extract a contour direction that is a direction along which pixels forming a contour of the first region are arrayed. The detecting unit is configured to detect a first surface facing the image capturing unit from the first region, based on the contour direction extracted by the second extracting unit.
    Type: Application
    Filed: May 29, 2018
    Publication date: September 27, 2018
    Inventors: Seiya Amano, Hiroyoshi Sekiguchi, Soichiro Yokota
  • Publication number: 20180165834
    Abstract: An information processing apparatus includes a correlation unit that correlates distance information indicating a distance to an emission position of electromagnetic waves emitted in a shooting direction of a plurality of image pickup units with a first pixel in a first image that constitutes images taken by the image pickup units, the distance information being obtained based on reflected waves of the electromagnetic waves and the first pixel corresponding to the emission position of the electromagnetic waves, and a generation unit that generates a parallax image by using the distance information correlated with the first pixel for parallax computation of pixels in a second image that constitutes the images.
    Type: Application
    Filed: December 22, 2014
    Publication date: June 14, 2018
    Inventors: Hiroyoshi SEKIGUCHI, Soichiro YOKOTA, Shuichi SUZUKI, Shin AOKI, Haike GUAN, Jun YOSHIDA, Mitsuru NAKAJIMA, Hideomi FUJIMOTO
  • Publication number: 20180120108
    Abstract: According to one aspect of the present invention, an object recognition device for performing recognition processing on a distance image to recognize an object includes a determination unit, a changing unit, and a recognition processor. The determination unit is configured to determine a valid distance pixel forming the distance image and an invalid distance pixel not forming the distance image, based on a feature value of each pixel in a captured image. The changing unit is configured to change the invalid distance pixel near the valid distance pixel to a valid distance pixel. The recognition processor is configured to perform recognition processing on the distance image formed by the valid distance pixel determined by the determination unit and the valid distance pixel obtained by the changing unit to recognize the object.
    Type: Application
    Filed: December 26, 2017
    Publication date: May 3, 2018
    Inventors: Sadao TAKAHASHI, Hiroyoshi SEKIGUCHI
  • Publication number: 20170374325
    Abstract: To achieve an image pickup element that can utilize polarized light as well as non-polarized light to image or capture an object, an image pickup element is provided to an imaging apparatus that forms an image of an object to be imaged onto a light-receiving surface of an image sensor, acquires a polarized filter image together with a regular luminance image, and executes image processing on the acquired images. The image pickup element includes, on a light-receiving surface LRS of the image sensor IMS, a polarizing filter PFL including at least two kinds of pixels having different transmission and polarization properties from each other.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 28, 2017
    Inventors: Izumi ITOH, Masayuki FUJISHIMA, Sukehiro KIMURA, Hiroyoshi SEKIGUCHI, Yuji TAKAHASHI
  • Patent number: 9819927
    Abstract: Disclosed is an image processing device for generating disparity information from a first image and a second image, wherein the first image is captured by a first capture unit and the second image is captured by a second capture unit. The image processing device includes a disparity detector configured to detect disparity information of a pixel or a pixel block of the second image by correlating the pixel or the pixel block of the second image with each of pixels or each of pixel blocks of the first image within a detection width. The disparity detector is configured to detect the disparity information of the pixel or the pixel block of the second image more than once by changing a start point of pixels or pixel blocks of the first image within the detection width.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: November 14, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuji Takahashi, Hiroyoshi Sekiguchi, Eita Watanabe, Yoshikazu Watanabe, Reiko Kuromizu
  • Patent number: 9794543
    Abstract: An information processing apparatus for processing stereo images of an object includes a disparity calculator to calculate a disparity of the stereo images. The disparity calculator includes an evaluation value calculator to calculate a correlation evaluation value in a search range set for the stereo images; an extreme value detector to detect an extreme value of the correlation evaluation value; a threshold setting unit to set a threshold range for the detected extreme value; a counting unit to count the number of the extreme value existing within the threshold range; and an updating unit to update the set threshold range to a new threshold range when a new extreme value indicating a higher correlation level of the disparity compared to the set threshold range is detected. The counting unit counts the number of the extreme value in a threshold range updated most recently in the search range.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: October 17, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyoshi Sekiguchi, Soichiro Yokota, Eita Watanabe, Reiko Kuromizu, Yuji Takahashi