Patents by Inventor Masatoshi Okutomi

Masatoshi Okutomi 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: 9250121
    Abstract: An imaging apparatus has a color filter array, an image sensor, and a differential information acquisition unit. In the color filter array, including five or more types of color filters are arranged in a two dimensional form. The image sensor has a plurality of pixels covered by the color filters, and the plurality of pixels generate pixel signals. The acquisition unit designates one of the pixels covered by the color filters of interest as a pixel of interest one pixel at a time in order. The acquisition unit calculates first differential information based on pixel signals generated by two of the pixels arranged on both sides of the pixel of interest along the first direction. The acquisition unit calculates second differential information based on pixel signals generated by two of the pixels arranged on both sides of the pixel of interest along the second direction.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: February 2, 2016
    Assignee: OLYMPUS CORPORATION
    Inventors: Masayuki Tanaka, Yusuke Monno, Masatoshi Okutomi, Sunao Kikuchi, Yasuhiro Komiya
  • Patent number: 9188480
    Abstract: The color filter array 21a comprises seven or more types of color filters including a first color filter. The seven or more types color filters have different spectral sensitivity characteristics. The seven or more types of color filters are arranged in a two-dimensional form. Among the seven or more types of color filters, at least two types of color filters are designated as a color filter of interest. Two color filters arranged at a first interval on both sides of the color filter of interest along a first direction are of the same type. Two color filters arranged at a second interval on both sides of the color filter of interest along a second direction that is different from the first direction are of the same type. Among the color filters, at least one type of color filter have a density higher than that of the other types of color filters, thereby realizing acquisition of highly accurate gradient information from a multiband color filter array.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: November 17, 2015
    Assignees: OLYMPUS CORPORATION, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Masayuki Tanaka, Yusuke Monno, Masatoshi Okutomi, Sunao Kikuchi, Yasuhiro Komiya
  • Patent number: 8964843
    Abstract: An image processing method includes: a frame selection step for selecting a base frame and a reference frame; an image displacement amount calculation step for calculating an image displacement amount between the reference frame and the base frame; a weighting coefficient generation step for generating a weighting coefficient using at least one of an encoding type of the reference frame and the motion information of the encoded moving image data; and an image quality improvement step for improving an image quality of the base frame using the image displacement amount calculated in the image displacement amount calculation step and the weighting coefficient generated in the weighting coefficient generation step.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: February 24, 2015
    Assignees: Olympus Corporation, Tokyo Institute of Technology
    Inventors: Eiji Furukawa, Masatoshi Okutomi, Masayuki Tanaka
  • Patent number: 8896689
    Abstract: An apparatus capable of improving the estimation accuracy of information on a subject including a distance up to the subject is provided. According to an environment recognition apparatus 1 of the present invention, a first cost function is defined as a decreasing function of an object point distance Z. Thus, the longer the object point distance Z is, the lower the first cost of a pixel concerned is evaluated. This reduces the contribution of the first cost of a pixel highly probable to have a large measurement or estimation error of the object point distance Z to the total cost C. Thereby, the estimation accuracy of a plane parameter ^q representing the surface position and posture of the subject is improved.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: November 25, 2014
    Assignees: Honda Motor Co., Ltd., Tokyo Institute of Technology
    Inventors: Minami Asatani, Masatoshi Okutomi, Shigeki Sugimoto
  • Patent number: 8873889
    Abstract: An image processing apparatus comprises a processing unit for computing displacement amounts between a basis image and each reference image, a processing unit for generating multiple deformed images based on the displacement amounts, the basis image and multiple reference images, a processing unit for setting a threshold of a parameter, a processing unit for selecting image information from the reference image by the threshold, a processing unit for generating composed images and weighted images based on the basis image, the displacement amounts and the image information, a processing unit for generating high-resolution grid images by dividing the composed image by the weighted image, a processing unit for generating simplified interpolation images based on high-resolution grid images, a processing unit for generating assistance images, a display unit for displaying the assistance images and a control unit that controls the necessary processing as necessary.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: October 28, 2014
    Assignees: Tokyo Institute of Technology, Olympus Corporation
    Inventors: Shunichi Koga, Masayuki Tanaka, Masatoshi Okutomi
  • Patent number: 8866901
    Abstract: A motion calculation device includes an image-capturing unit configured to capture an image of a range including a plane and outputs the captured image, an extraction unit configured to extract a region of the plane from the image, a detection unit configured to detect feature points and motion vectors of the feature points from a plurality of images captured by the image-capturing unit at a predetermined time interval; and a calculation unit configured to calculate the motion of the host device based on both of an epipolar constraint relating to the feature points and a homography relating to the region.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: October 21, 2014
    Assignee: Honda Elesys Co., Ltd.
    Inventors: Takahiro Azuma, Masatoshi Okutomi, Shigeki Sugimoto
  • Patent number: 8861895
    Abstract: An image processing apparatus comprises a processing unit for computing displacement amounts between a basis image and each reference image, a processing unit for generating multiple deformed images based on the displacement amounts, the basis image and multiple reference images, a processing unit for setting a threshold of a parameter, a processing unit for selecting image information from the reference image by threshold, a processing unit for generating composed images and weighted images based on the basis image, the displacement amounts and the image information, a processing unit for generating high-resolution grid images by dividing the composed image by the weighted image, a processing unit for generating simplified interpolation images based on high-resolution grid images, a processing unit for generating an image characteristic amount, a display unit for displaying the image characteristic amount and a control unit that controls the necessary processing as necessary.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: October 14, 2014
    Assignees: Olympus Corporation, Tokyo Institute of Technology
    Inventors: Shunichi Koga, Masayuki Tanaka, Masatoshi Okutomi
  • Publication number: 20140118586
    Abstract: An imaging apparatus has a color filter array, an image sensor, and a differential information acquisition unit. In the color filter array, including five or more types of color filters are arranged in a two dimensional form. The image sensor has a plurality of pixels covered by the color filters, and the plurality of pixels generate pixel signals. The acquisition unit designates one of the pixels covered by the color filters of interest as a pixel of interest one pixel at a time in order. The acquisition unit calculates first differential information based on pixel signals generated by two of the pixels arranged on both sides of the pixel of interest along the first direction. The acquisition unit calculates second differential information based on pixel signals generated by two of the pixels arranged on both sides of the pixel of interest along the second direction.
    Type: Application
    Filed: October 28, 2013
    Publication date: May 1, 2014
    Applicants: OLYMPUS CORPORATION, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Masayuki TANAKA, Yusuke MONNO, Masatoshi OKUTOMI, Sunao KIKUCHI, Yasuhiro KOMIYA
  • Publication number: 20140072214
    Abstract: An image processing system includes a reception unit, a derivative calculation unit, a reference image creation unit, and an interpolated image creation unit. The reception unit receives an original image signal formed by a plurality of pixel signals in which any of first through mth (m being an integer three or greater) color signal components is lacking. The derivative calculation unit calculates a derivative for the pixel signals using two pixels sandwiching a pixel corresponding to the pixel signals. The reference image creation unit creates a primary reference image using the first color signal component, which has the largest number of elements among the pixel signals of the original image signal. The interpolated image creation unit creates an interpolated image by interpolating all of the color signal components using the primary reference image. At least one of the primary reference image and the interpolated image is created using the derivative.
    Type: Application
    Filed: April 27, 2012
    Publication date: March 13, 2014
    Inventors: Masayuki Tanaka, Masatoshi Okutomi, Yusuke Monno
  • Publication number: 20140054448
    Abstract: The color filter array 21a comprises seven or more types of color filters including a first color filter. The seven or more types color filters have different spectral sensitivity characteristics. The seven or more types of color filters are arranged in a two-dimensional form. Among the seven or more types of color filters, at least two types of color filters are designated as a color filter of interest. Two color filters arranged at a first interval on both sides of the color filter of interest along a first direction are of the same type. Two color filters arranged at a second interval on both sides of the color filter of interest along a second direction that is different from the first direction are of the same type. Among the color filters, at least one type of color filter have a density higher than that of the other types of color filters, thereby realizing acquisition of highly accurate gradient information from a multiband color filter array.
    Type: Application
    Filed: October 31, 2013
    Publication date: February 27, 2014
    Applicants: OLYMPUS CORPORATION, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Masayuki TANAKA, Yusuke MONNO, Masatoshi OKUTOMI, Sunao KIKUCHI, Yasuhiro KOMIYA
  • Publication number: 20130094781
    Abstract: [Problem] An object of the present invention is to provide an image processing apparatus used for acquisition aid of optimal low-resolution image set for super-resolution processing.
    Type: Application
    Filed: February 10, 2011
    Publication date: April 18, 2013
    Applicant: OLYMPUS CORPORATION
    Inventors: Shunichi Koga, Masayuki Tanaka, Masatoshi Okutomi
  • Publication number: 20130084027
    Abstract: [Problem] An object of the present invention is to provide an image processing apparatus used for acquisition assistance of optimal low-resolution image set for super-resolution processing.
    Type: Application
    Filed: February 10, 2011
    Publication date: April 4, 2013
    Applicant: TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Shunichi Koga, Masayuki Tanaka, Masatoshi Okutomi
  • Patent number: 8406509
    Abstract: The present invention provides a three-dimensional surface generation method that directly and efficiently generates a three-dimensional surface of the object surface from multiple images capturing a target object. The three-dimensional surface generation method of the present invention sets one image as a basis image from multiple images obtained by capturing the target object from different viewpoint positions and sets other images as reference images, and then generates two-dimensional triangle meshes on the basis image.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: March 26, 2013
    Assignee: Tokyo Institute of Technology
    Inventors: Masatoshi Okutomi, Shigeki Sugimoto
  • Patent number: 8340471
    Abstract: Disclosed is an image processing apparatus that is capable of effectively generating a high-resolution image with high image quality from multiple low-resolution images having displacements by an iterative reconstruction processing based on a reconstruction-based super-resolution processing method.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: December 25, 2012
    Assignee: Tokyo Institute of Technology
    Inventors: Eiji Furukawa, Masayuki Tanaka, Masatoshi Okutomi
  • Patent number: 8331653
    Abstract: An object position area is calculated according to a position in the space of a detected truck. A template corresponding to the object position area recorded at the previous time is then called. The template is moved to a position on a reference image Ib where the similarity is highest. Overlap rate of the object position area and the template is calculated. A decision is made whether the object is identical to that detected in the past by using the overlap rate.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: December 11, 2012
    Assignees: Tokyo Institute of Technology, Honda Motor Co., Ltd.
    Inventors: Akihito Seki, Masatoshi Okutomi
  • Patent number: 8294778
    Abstract: An image processor includes a frequency transformation unit configured to perform frequency transformation processing with respect to a multiple image, and an inter-superimposed-image displacement acquisition unit that calculates a displacement amount between images forming superimposed images included in the multiple image by using a frequency-transformed image subjected to the frequency transformation processing by the frequency transformation unit.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: October 23, 2012
    Assignees: Tokyo Institute of Technology, Olympus Corporation
    Inventors: Masatoshi Okutomi, Masao Shimizu, Takahiro Yano
  • Patent number: 8180100
    Abstract: A rotation matrix and a translation vector between a basic camera and a reference camera are read out from a parameter storage section. At a projection conversion matrix calculating section, a projection conversion matrix capable of overlapping the road plane area included in images picked up by the basic camera and the reference camera is calculated by using the rotation matrix and the translation vector.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: May 15, 2012
    Assignees: Honda Motor Co., Ltd., Tokyo Institute of Technology
    Inventors: Tomo Fujimaki, Masatoshi Okutomi
  • Patent number: 8154594
    Abstract: A standard camera picks up a standard image, and a reference camera picks up a reference image. A flat area is extracted from the standard image and the reference image. An edge image is created by extracting the edges and feature points from the standard image and then a corrected edge image is created by removing the flat area. Object detection processing is carried out on the edges and feature points of the corrected edge image with reference to the reference image.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: April 10, 2012
    Assignees: Tokyo Institute of Technology, Honda Motor Co., Ltd.
    Inventors: Akihito Seki, Masatoshi Okutomi
  • Patent number: 8089531
    Abstract: An image processor includes an inter-superimposed-image deformation acquisition unit configured to acquire deformation information between superimposed images included in a multiple image in which images of a subject are superimposed, an image deformation unit configured to generate at least two deformed images by performing deformation processing with respect to the multiple image at least twice to be geometrically deformed based on the acquired deformation information between superimposed images, and a signal intensity relationship acquisition unit configured to acquire signal intensity relationship information indicative of a relationship between signal intensities of the superimposed images included in the multiple image. The image processor further includes a signal processing unit configured to perform addition processing of the at least two deformed images generated from the deformation processing by using the acquired signal intensity relationship information.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: January 3, 2012
    Assignees: Olympus Corporation, Tokyo Institute of Technology
    Inventors: Takahiro Yano, Masatoshi Okutomi, Masao Shimizu
  • Patent number: 8041151
    Abstract: The present invention provides a fast method of super-resolution processing which realizes speedup of the high-speed super-resolution processing by speeding up the calculations of an evaluation function and the differential of the evaluation function with respect to a high-resolution image in a reconstruction-based super-resolution processing. A fast method of super-resolution processing for speeding up a super-resolution processing that estimates a high-resolution image from multiple low-resolution images with displacements, the method characterized in that an evaluation function and a differential of the evaluation function with respect to the high-resolution image are calculated by a combination of basic image operations.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: October 18, 2011
    Assignee: Tokyo Instutute of Technology
    Inventors: Masayuki Tanaka, Masatoshi Okutomi