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).

  • Publication number: 20170185853
    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: Application
    Filed: March 10, 2017
    Publication date: June 29, 2017
    Inventors: Soichiro YOKOTA, Tomoko ISHIGAKI, Hiroyoshi SEKIGUCHI, Kenichiroh SAISHO
  • Patent number: 9659379
    Abstract: An information processing system comprises: a light emitting unit that irradiates pattern light having a specific pattern to a subject to form a texture on the subject; an imaging unit that captures the subject on which the texture is formed; a deriving unit that derives distance information to the subject based on an image captured by the imaging unit; an analyzing unit that analyzes whether or not an image abnormality is present in either one of the captured image and an image based on the distance information; and a dimming unit that performs dimming control when the analyzing unit analyzes that the image abnormality is present.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: May 23, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroyoshi Sekiguchi, Terunori Koyama, Kazuyoshi Yamada
  • Patent number: 9637118
    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: May 13, 2015
    Date of Patent: May 2, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Soichiro Yokota, Tomoko Ishigaki, Hiroyoshi Sekiguchi, Kenichiroh Saisho
  • Patent number: 9519841
    Abstract: An attached matter detector includes a light source configured to irradiate light toward a plate-like transparent member from one surface thereof, an imaging device configured to image reflection light by attached matter on a surface of the plate-like transparent member, a memory configured to previously store flare information obtained by the image device by turning on the light source in a state without having disturbance light and the attached matter on the surface of the plate-like transparent member, and a difference information-obtaining device configured to obtain difference information between a light-up image as an image obtained by the imaging device with the turned-on light source and a light-out image as an image obtained by the imaging device with the turned-off light source, wherein the attached matter on the surface of the plate-like transparent member is detected based on the difference information and the flare information stored in the memory.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: December 13, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Taroh Sawaki, Hideaki Hirai, Ryosuke Kasahara, Hiroyoshi Sekiguchi
  • Publication number: 20160349371
    Abstract: A distance measuring device includes a plurality of image taking parts, a first distance information acquisition part that acquires distance information of an object for distance measuring from taken images that are taken by the plurality of image taking parts, an electromagnetic wave emission part that emits an electromagnetic wave, a reflected-wave receiving part that receives a reflected wave of an electromagnetic wave emitted from the electromagnetic wave emission part, and a second distance information acquisition part that acquires distance information of the object for distance measuring from a reflected wave received by the reflected-wave receiving part, wherein irradiation with an electromagnetic wave emitted from the electromagnetic wave emission part is executed under optical axes of the plurality of image taking parts.
    Type: Application
    Filed: February 24, 2015
    Publication date: December 1, 2016
    Inventors: Shuichi SUZUKI, Mitsuru NAKAJIMA, Hiroyoshi SEKIGUCHI, Haike GUAN, Soichiro YOKOTA
  • Publication number: 20160261848
    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: Application
    Filed: February 22, 2016
    Publication date: September 8, 2016
    Inventors: Hiroyoshi SEKIGUCHI, Soichiro Yokota, Eita Watanabe, Reiko Kuromizu, Yuji Takahashi
  • Patent number: 9426377
    Abstract: An image capturing apparatus includes a light source to emit first light to a light translucent member, an image sensor to capture an adhering detection frame for acquiring an adhering detection image to detect a substance adhering on the light translucent member by using the first light emitted from the light source, and to capture object recognition frames for acquiring object recognition images for recognizing objects other than the substance by receiving second light, and circuitry to set a frame time of the adhering detection frame shorter than a frame time of each of the object recognition frames, and to set an exposure time of an object recognition frame right after the adhering detection frame to a value that prevents overlapping of an exposure period of the adhering detection frame and an exposure period of the object recognition frame right after the adhering detection frame.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: August 23, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyoshi Sekiguchi, Shintaroh Kida, Kohji Oshikiri, Izumi Itoh
  • Publication number: 20160205384
    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: Application
    Filed: December 30, 2015
    Publication date: July 14, 2016
    Applicant: RICOH COMPANY. LTD.
    Inventors: Hiroyoshi SEKIGUCHI, Eita WATANABE
  • Publication number: 20160187487
    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: Application
    Filed: December 7, 2015
    Publication date: June 30, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Masahiko Itoh, Hiroyoshi SEKIGUCHI
  • Publication number: 20160131579
    Abstract: An adhering detection apparatus includes a light source to emit probe light to a light translucent object during an emission period, and to stop an emission of the probe light to the light translucent object during a non-emission period, a light receiver to receive light coming from the light translucent object during the emission period and the non-emission period of the light source, and an adhering detection processor to perform an adhering detection processing for detecting a substance adhering to the light translucent object based on light quantity of the light coming from the light translucent object and received by the light receiver, and to output a detection result of the adhering detection processing. The adhering detection processor selectively performs one or more processes depending on the light quantity of the light received by the light receiver during the non-emission period of the light source.
    Type: Application
    Filed: October 28, 2015
    Publication date: May 12, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Hiroyoshi SEKIGUCHI, Shintaroh KIDA, Kohji OSHIKIRI, Izumi ITOH
  • Publication number: 20160098841
    Abstract: An information processing system comprises: a light emitting unit that irradiates pattern light having a specific pattern to a subject to form a texture on the subject; an imaging unit that captures the subject on which the texture is formed; a deriving unit that derives distance information to the subject based on an image captured by the imaging unit; an analyzing unit that analyzes whether or not an image abnormality is present in either one of the captured image and an image based on the distance information; and a dimming unit that performs dimming control when the analyzing unit analyzes that the image abnormality is present.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 7, 2016
    Inventors: Hiroyoshi SEKIGUCHI, Terunori Koyama, Kazuyoshi Yamada
  • Publication number: 20160100088
    Abstract: An image capturing apparatus includes a light source to emit first light to a light translucent member, an image sensor to capture an adhering detection frame for acquiring an adhering detection image to detect a substance adhering on the light translucent member by using the first light emitted from the light source, and to capture object recognition frames for acquiring object recognition images for recognizing objects other than the substance by receiving second light, and circuitry to set a frame time of the adhering detection frame shorter than a frame time of each of the object recognition frames, and to set an exposure time of an object recognition frame right after the adhering detection frame to a value that prevents overlapping of an exposure period of the adhering detection frame and an exposure period of the object recognition frame right after the adhering detection frame.
    Type: Application
    Filed: September 18, 2015
    Publication date: April 7, 2016
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroyoshi SEKIGUCHI, Shintaroh KIDA, Kohji OSHIKIRI, Izumi ITOH
  • Patent number: 9269006
    Abstract: A dynamic expansion operation of an index value image is performed by specifying an index value range before correction (Gmin to Gmax) for one index value image, calculating magnification K for which to be expanded to an ideal index value range (0 to 1023), and correcting an index value before correction G by the magnification K. An effective magnification Kthre to expand a maximum effective index value range (215 to 747) that can be taken by the index value before correction G calculated from transmittance of a filter to the ideal index value range (0 to 1023) is stored, and in a case where the calculated magnification K is smaller than the effective magnification Kthre, the expansion operation is performed by use of the effective magnification Kthre.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: February 23, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomoko Ishigaki, Hiroyoshi Sekiguchi
  • Publication number: 20150358610
    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: Application
    Filed: May 13, 2015
    Publication date: December 10, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yuji TAKAHASHI, Hiroyoshi SEKIGUCHI, Eita WATANABE, Yoshikazu WATANABE, Reiko KUROMIZU
  • Publication number: 20150334269
    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: Application
    Filed: May 13, 2015
    Publication date: November 19, 2015
    Inventors: Soichiro Yokota, Tomoko Ishigaki, Hiroyoshi Sekiguchi, Kenichiroh Saisho
  • Publication number: 20150332103
    Abstract: A processing apparatus includes a navigator, an environment detector, and a controller. The navigator displays a route between desired geographical locations on a display unit. The environment detector detects a surrounding environment of equipment provided with the display unit. The controller controls the navigator to cause the navigator to search again for and display another route between the desired geographical locations, in accordance with the detected surrounding environment.
    Type: Application
    Filed: May 18, 2015
    Publication date: November 19, 2015
    Inventors: Soichiro YOKOTA, Hiroyoshi SEKIGUCHI, Tomoko ISHIGAKI, Kenichiroh SAISHO
  • Publication number: 20150243017
    Abstract: An object recognition apparatus includes a first object detection unit configured to detect an object based on an image captured by an imaging unit, and output first information including a distance and a direction to the object; a second object detection unit configured to emit light, detect the object based on reflected light, and output second information including a distance and a direction to the object; an output unit configured to output at least one of the first information and the second information; a disappearance detection unit configured to detect disappearance upon when the first object detection unit becomes unable to detect the object; and an emission control unit configured to control the second object detection unit to emit light in an object direction based on the first information before detecting the disappearance. Upon the disappearance detection unit detecting the disappearance, the output unit starts outputting the second information.
    Type: Application
    Filed: February 24, 2015
    Publication date: August 27, 2015
    Inventors: Hideomi FUJIMOTO, Hiroyoshi SEKIGUCHI, Haike GUAN, Shuichi SUZUKI, Mitsuru NAKAJIMA, Shin AOKI, Soichiro YOKOTA
  • Publication number: 20140270532
    Abstract: An attached matter detector includes a light source configured to irradiate light toward a plate-like transparent member from one surface thereof, an imaging device configured to image reflection light by attached matter on a surface of the plate-like transparent member, a memory configured to previously store flare information obtained by the image device by turning on the light source in a state without having disturbance light and the attached matter on the surface of the plate-like transparent member, and a difference information-obtaining device configured to obtain difference information between a light-up image as an image obtained by the imaging device with the turned-on light source and a light-out image as an image obtained by the imaging device with the turned-off light source, wherein the attached matter on the surface of the plate-like transparent member is detected based on the difference information and the flare information stored in the memory.
    Type: Application
    Filed: November 1, 2012
    Publication date: September 18, 2014
    Inventors: Taroh Sawaki, Hideaki Hirai, Ryosuke Kasahara, Hiroyoshi Sekiguchi
  • Publication number: 20140247357
    Abstract: An attached matter detector includes: a light source that emits light to a transparent member; imaging device that receives light emitted from the light source and reflected by an attached matter on the transparent member, and consecutively images an image of the attached matter at a predetermined imaging frequency; and an attached matter detection processor that detects the attached matter based on an image imaged by the imaging device, wherein the light source emits light that flickers at a drive frequency different from the imaging frequency, and the imaging device receives the reflected light via an optical filter that selects and transmits the reflected light, and the attached matter detection processor detects a beat on an image generated by a difference between the imaging frequency and the drive frequency, and identifies an image region where the beat is detected as an attached matter image region.
    Type: Application
    Filed: November 27, 2012
    Publication date: September 4, 2014
    Inventor: Hiroyoshi Sekiguchi
  • Patent number: 8605153
    Abstract: An image adjusting device for an on-vehicle camera mounted on a vehicle includes an operations unit configured to input mounting position information regarding a mounting position of the on-vehicle camera on the vehicle; a storing unit configured to store image processing parameters in association with various mounting positions of the on-vehicle camera; a control unit configured to read the corresponding image processing parameters from the storing unit based on the mounting position information input from the operations unit; and an image processing unit configured to process image data obtained by an imaging unit of the on-vehicle camera according to the image processing parameters read by the control unit.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: December 10, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuya Sasaki, Ryosuke Kasahara, Go Maruyama, Hiroyoshi Sekiguchi, Xue Li, Masahiko Itoh