Patents by Inventor Hirokazu Takenaka

Hirokazu Takenaka 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: 9307144
    Abstract: An image capturing apparatus includes image capturing devices; page memories for the image capturing devices, respectively, each page memory storing a piece of image data output from the corresponding image capturing device; a page-memory read unit configured to read pieces of image data stored in the page memories line by line in a time division manner; an image processing unit configured to perform predetermined image processing on the pieces of image data read from the page memories for the image capturing devices line by line in the time division manner; and a write monitoring unit configured to monitor write states of the pieces of image data that are output from the image capturing devices and written into the page memories, and control the page-memory read unit to start reading the pieces of image data from the page memories.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: April 5, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Tomonori Tanaka, Noriyuki Terao, Yoshiaki Irino, Toru Harada, Hideaki Yamamoto, Hirokazu Takenaka, Satoshi Sawaguchi, Nozomi Imae, Daisuke Bessho, Kensuke Masuda, Hiroyuki Satoh, Makoto Shohara, Shusaku Takasu
  • Publication number: 20160063420
    Abstract: A farmland management system includes an information detection unit configured to acquire information relating to a crop being cultivated, a storage unit configured to store crop registration information for estimating a growth condition of the crop, a growth estimation unit configured to refer to the crop registration information and estimate the growth condition of the crop based on the information relating to the crop and the crop registration information, and a display unit configured to display the growth condition estimated by the growth estimation unit.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 3, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yasuhiro TOMII, Shohei MATSUMURA, Takashi NOGUCHI, Kensuke MASUDA, Kohji OSHIKIRI, Takeshi DENDA, Hirokazu TAKENAKA, Yuji YAMANAKA
  • Publication number: 20160050369
    Abstract: An image processing apparatus detecting a plurality of joint positions between a plurality of input images includes a target image generation unit configured to generate a plurality of target images to be searched in a second input image among the input images from a first input image among the input images; a characteristic amount calculation unit configured to calculate a characteristic amount for each of the target images generated by the target image generation unit; and a matching calculation unit configured to calculate a matching between the target image of interest among the target images having the characteristic amounts calculated by the characteristic amount calculation unit, and a part of the second input image, using an evaluation method depending on the characteristic amounts calculated by the characteristic amount calculation unit.
    Type: Application
    Filed: October 28, 2015
    Publication date: February 18, 2016
    Inventors: Hirokazu TAKENAKA, Kazuhiro YOSHIDA, Keiichi KAWAGUCHI
  • Publication number: 20160048973
    Abstract: An image processing system includes an image receiver to receive a first image sequence composed of first partial images and a second image sequence composed of second partial images captured at a plurality of time points, each one of the first partial images and corresponding each one of the second partial images captured at substantially the same time point, a detection unit to detect a stitching position of each one of the first partial images and corresponding each one of the second partial images captured at substantially the same time point, a correction unit to correct the stitching position at the plurality of time points, and an image synthesis processing unit to synthesize each one of the first partial images and corresponding each one of the second partial images captured at substantially the same time point based on the corrected stitching position information to generate a plurality of synthesis images.
    Type: Application
    Filed: July 29, 2015
    Publication date: February 18, 2016
    Inventor: Hirokazu TAKENAKA
  • Patent number: 9261679
    Abstract: An optical system includes a central portion having a magnification per unit angle of view which increases from a center to an outside at an increase rate and a circumferential portion being outside the central portion and having a magnification per unit of view which increases from the central portion to an outside at an increase rate smaller than the increase rate of the central portion.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: February 16, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kensuke Masuda, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Satoshi Sawaguchi, Hiroyuki Satoh
  • Publication number: 20160006907
    Abstract: An imaging system includes an imaging body having an optical system and an imaging element, a power supplier configured to supply power to the imaging element, and a housing configured to hold the imaging body and the power supplier, wherein the optical system includes at least one optical element projecting from the housing, and a distance AP between a gravity center A of a portion including the optical system and a gravity center P of the entire imaging system and a distance BP between a gravity center B of the power supplier and the gravity center P of the entire imaging system satisfy the following condition.
    Type: Application
    Filed: September 15, 2015
    Publication date: January 7, 2016
    Inventors: Kensuke MASUDA, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Satoshi Sawaguchi, Daisuke Bessho, Hiroyuki Satoh, Makoto Shohara
  • Patent number: 9201222
    Abstract: An imaging system includes n or more photographing optical system having an imaging optical system having a full angle of view A (degree) larger than 360/n where n is a natural number of 2 or more and a two-dimensional imaging element configured to convert light condensed by the imaging optical system into an image signal, wherein in the imaging optical system of each of the imaging optical systems, a magnification per unit angle of view monotonically increases from 0 to 360/n-degree angle of view, and an increase rate of the magnification monotonically decreases to the full angle of view A (degree) after the 360/n-degree angle of view.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: December 1, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kensuke Masuda, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Satoshi Sawaguchi, Hiroyuki Satoh
  • Patent number: 9185279
    Abstract: An imaging system includes an imaging body having an optical system and an imaging element, a power supplier configured to supply power to the imaging element, and a housing configured to hold the imaging body and the power supplier, wherein the optical system includes at least one optical element projecting from the housing, and a distance AP between a gravity center A of a portion including the optical system and a gravity center P of the entire imaging system and a distance BP between a gravity center B of the power supplier and the gravity center P of the entire imaging system satisfy the following condition.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: November 10, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kensuke Masuda, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Satoshi Sawaguchi, Daisuke Bessho, Hiroyuki Satoh, Makoto Shohara
  • Publication number: 20150301316
    Abstract: An imaging device includes two imaging optical systems each of the imaging optical systems including a wide-angle lens having an angle of view wider than 180 degrees, and an imaging sensor configured to image an image by the wide-angle lens, so as to obtain an image in a solid angle of 4? radian by synthesizing the images by the respective imaging optical systems, wherein the wide-angle lens of each of the imaging optical systems includes, in order from an object side to an image side, a front group having a negative power, a reflection surface and a back group having a positive power, and is configured to bend an optical axis of the front group by the reflection surface at 90 degrees toward the back group.
    Type: Application
    Filed: June 29, 2015
    Publication date: October 22, 2015
    Inventors: Kensuke MASUDA, Noriyuki TERAO, Yoshiaki IRINO, Tomonori TANAKA, Nozomi IMAE, Toru HARADA, Hirokazu TAKENAKA, Hideaki YAMAMOTO, Satoshi SAWAGUCHI, Daisuke BESSHO, Hiroyuki SATOH, Makoto SHOHARA
  • Patent number: 9110273
    Abstract: An imaging device includes two imaging optical systems each of the imaging optical systems including a wide-angle lens having an angle of view wider than 180 degrees, and an imaging sensor configured to image an image by the wide-angle lens, so as to obtain an image in a solid angle of 4? radian by synthesizing the images by the respective imaging optical systems, wherein the wide-angle lens of each of the imaging optical systems includes, in order from an object side to an image side, a front group having a negative power, a reflection surface and a back group having a positive power, and is configured to bend an optical axis of the front group by the reflection surface at 90 degrees toward the back group.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: August 18, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kensuke Masuda, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Satoshi Sawaguchi, Daisuke Bessho, Hiroyuki Satoh, Makoto Shohara
  • Publication number: 20150222816
    Abstract: An imaging controller includes an index calculator to calculate an index value for each of divided areas of images captured by a plurality of imaging units, the index value for evaluating a photographic state of each of the divided areas, an evaluation value calculator to evaluate the images and an overlapping area between the images on the basis of the index value of each divided area calculated by the index calculator and calculate an overall evaluation value, and a condition determiner to determine an imaging condition for each of the imaging units on the basis of the overall evaluation value calculated by the evaluation value calculator.
    Type: Application
    Filed: September 3, 2013
    Publication date: August 6, 2015
    Inventors: Makoto Shohara, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Hirokazu Takenaka, Hideaki Yamamoto, Kensuke Masuda, Yoichi Ito, Satoshi Sawaguchi, Daisuke Bessho, Hiroyuki Satoh
  • Publication number: 20150192762
    Abstract: A wide-angle lens having a field angle larger than 180 degrees includes, in order from an object side to an image side, a front group, a reflection surface, and a back group, wherein the front group includes three lenses having a negative refractive power, the reflection surface is configured to curve an optical axis of the front group at 90 degrees toward the back group, the back group includes four lenses having a positive refractive power, a front principle point is set between a second lens and a third lens from the object side in the front group, and a focal length of an entire system f and a distance between an intersection of the reflection surface and the optical axis of the front group and the front principle point d satisfy the following condition (1). 7.0<d/f<9.
    Type: Application
    Filed: March 18, 2015
    Publication date: July 9, 2015
    Inventors: Hiroyuki Satoh, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Kensuke Masuda, Satoshi Sawaguchi, Daisuke Bessho
  • Patent number: 9019342
    Abstract: A wide-angle lens having a field angle larger than 180 degrees includes, in order from an object side to an image side, a front group, a reflection surface, and a back group, wherein the front group includes three lenses having a negative refractive power, the reflection surface is configured to curve an optical axis of the front group at 90 degrees toward the back group, the back group includes four lenses having a positive refractive power, a front principle point is set between a second lens and a third lens from the object side in the front group, and a focal length of an entire system f and a distance between an intersection of the reflection surface and the optical axis of the front group and the front principle point d satisfy the following condition (1) 7.0<d/f<9.0.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: April 28, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Satoh, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Kensuke Masuda, Satoshi Sawaguchi, Daisuke Bessho
  • Patent number: 9013544
    Abstract: An optical system includes a first lens to focus incident light, a first prism including a reflection surface by which light having transmitted through the first lens is reflected, a second lens to focus incident light from a different direction from a direction of the incident light on the first lens, and a second prism including a reflection surface by which light having transmitted through the second lens is reflected, in which the reflection surface of the first prism and the reflection surface of the second prism oppose each other.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: April 21, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Satoh, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Kensuke Masuda, Satoshi Sawaguchi, Daisuke Bessho, Makoto Shohara, Yoichi Ito, Shusaku Takasu
  • Publication number: 20150062363
    Abstract: An image capturing apparatus includes a tilt detection unit that detects a tilt in the vertical direction, conversion data used for transforming plane coordinates into spherical coordinates, a correction unit that corrects the conversion data according to the tilt, a plurality of image capturing units, a coordinate transformation unit that transforms plane coordinates of a plurality of pixels included in images captured by the image capturing units into spherical coordinates according to the conversion data corrected by the correction unit, and a combining unit that combines the images including the pixels transformed into spherical coordinates by the coordinate transformation unit.
    Type: Application
    Filed: March 11, 2013
    Publication date: March 5, 2015
    Inventors: Hirokazu Takenaka, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Hideaki Yamamoto, Kensuke Masuda, Yoichi Ito, Satoshi Sawaguchi, Daisuke Bessho, Hiroyuki Satoh, Makoto Shohara, Noriyuki Terao, Toru Harada
  • Publication number: 20150042647
    Abstract: An image-processing system includes a receiver which receives an input value defining an output range, a generator which generates a three-dimensional model having a target image attached to a three-dimensional conformation, a decision part which decides a position of a viewing point and a viewing angle in accordance with the input value, and a projector which projects the three-dimensional model from the viewing point, wherein the decision part changes a range of a target image inside a viewing field by changing the viewing angle preferentially when the input value is in a first range, and changes the range of the target image inside the viewing field by changing the viewing point preferentially when the input value is in a second range which is a wider-angle side than that of the first range.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Inventors: Makoto SHOHARA, Nozomi Imae, Toru Harada, Hideaki Yamamoto, Yasuo Ueda, Yoichi Ito, Satoshi Sawaguchi, Hirokazu Takenaka, Kensuke Masuda, Hiroyuki Satoh
  • Publication number: 20150015766
    Abstract: An optical system includes a first lens to focus incident light, a first prism including a reflection surface by which light having transmitted through the first lens is reflected, a second lens to focus incident light from a different direction from a direction of the incident light on the first lens, and a second prism including a reflection surface by which light having transmitted through the second lens is reflected, in which the reflection surface of the first prism and the reflection surface of the second prism oppose each other.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Hiroyuki SATOH, Noriyuki TERAO, Yoshiaki IRINO, Tomonori TANAKA, Nozomi IMAE, Toru HARADA, Hirokazu TAKENAKA, Hideaki YAMAMOTO, Kensuke MASUDA, Satoshi SAWAGUCHI, Daisuke BESSHO, Makoto SHOHARA, Yoichi ITO, Shusaku TAKASU
  • Publication number: 20150015664
    Abstract: An optical system includes a central portion having a magnification per unit angle of view which increases from a center to an outside at an increase rate and a circumferential portion being outside the central portion and having a magnification per unit of view which increases from the central portion to an outside at an increase rate smaller than the increase rate of the central portion.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Kensuke MASUDA, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Satoshi Sawaguchi, Hiroyuki Satoh
  • Patent number: 8854359
    Abstract: An image processing apparatus projecting 3D image data to 2D planar image data includes: an accumulation unit that accumulates the 3D image data having position coordinates and pixel values; an acquisition unit that acquires a display parameter, including a zoom parameter for changing image size, for the 2D image data to be created; a creation unit that creates the 2D image data from the 3D image data with the display parameter by determining a half view angle of the 3D image data and performing inverse projection transformation on the 2D image data while changing, in accordance with a change in the half view angle caused by the change in image size specified by the zoom parameter, an inverse projection transformation method applied to position coordinates used to create the 2D image data; and a display unit that displays the created 2D image data as a 2D planar image.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: October 7, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Hirokazu Takenaka, Noriyuki Terao, Toru Harada, Yoshiaki Irino, Tomonori Tanaka, Hideaki Yamamoto, Nozomi Imae, Daisuke Bessho, Satoshi Sawaguchi, Kensuke Masuda, Hiroyuki Satoh
  • Publication number: 20140176542
    Abstract: An image-processing system includes a receiver which receives an input value defining an output range, a generator which generates a three-dimensional model having a target image attached to a three-dimensional conformation, a decision part which decides a position of a viewing point and a viewing angle in accordance with the input value, and a projector which projects the three-dimensional model from the viewing point, wherein the decision part changes a range of a target image inside a viewing field by changing the viewing angle preferentially when the input value is in a first range, and changes the range of the target image inside the viewing field by changing the viewing point preferentially when the input value is in a second range which is a wider-angle side than that of the first range.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 26, 2014
    Inventors: Makoto Shohara, Nozomi Imae, Toru Harada, Hideaki Yamamoto, Yasuo Ueda, Yoichi Ito, Satoshi Sawaguchi, Hirokazu Takenaka, Kensuke Masuda, Hiroyuki Satoh