Patents by Inventor Shinobu Arai

Shinobu Arai 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: 10943338
    Abstract: Provided are an edge-induced visual illusion generation apparatus, a method, a program, and a recording medium capable of being applied to any image, automatically generating an edge-induced visual illusion without complicated work, and improving contrast using the edge-induced visual illusion. A two-dimensional digital filter, which is a filter with no orientation or an even filter with orientation and is a filter that allows a band of a relatively high frequency to pass or a high pass filter, or is an orientation-selective wavelet frame or an orientation-selective filter bank that are a set of an approximation filter with no orientation and detail filters with orientations, is applied to image data, and a component of a relatively high frequency band or a high frequency component is extracted, and/or coloring is applied to an edge of the extracted band component or the high frequency component, thereby generating an edge-induced visual illusion image.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: March 9, 2021
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hitoshi Arai, Shinobu Arai
  • Publication number: 20190180425
    Abstract: Provided are an edge-induced visual illusion generation apparatus, a method, a program, and a recording medium capable of being applied to any image, automatically generating an edge-induced visual illusion without complicated work, and improving contrast using the edge-induced visual illusion. A two-dimensional digital filter, which is a filter with no orientation or an even filter with orientation and is a filter that allows a band of a relatively high frequency to pass or a high pass filter, or is an orientation-selective wavelet frame or an orientation-selective filter bank that are a set of an approximation filter with no orientation and detail filters with orientations, is applied to image data, and a component of a relatively high frequency band or a high frequency component is extracted, and/or coloring is applied to an edge of the extracted band component or the high frequency component, thereby generating an edge-induced visual illusion image.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Inventors: Hitoshi ARAI, Shinobu ARAI
  • Patent number: 9721331
    Abstract: In the present invention, subband signals are obtained by performing multiresolution decomposition on image data by using a broad-sense pinwheel framelet that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations, and that has a degree. When an image is reconstructed by summing the obtained subband signals, the reconstructed image data is generated by attenuating or amplifying a subband signal corresponding to at least one of filters that have predetermined frequency characteristics and/or a predetermined orientation among the filters.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: August 1, 2017
    Assignee: NATIONAL INSTITUTE OF JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hitoshi Arai, Shinobu Arai
  • Patent number: 9426333
    Abstract: According to the present invention, multiresolution decomposition is performed on a color component of image data by using a wavelet frame with orientation selectivity or a filter bank with orientation selectivity and subband signals are obtained; and when reconstructing an image by summing the obtained subband signals, coefficient processing is performed, between a decomposition phase and a synthesis phase in the multiresolution decomposition, on decomposition detail coefficients that are output from the decomposition phase such that the larger the energy of the decomposition detail coefficients is, the more small values are further reduced, and the smaller the energy of the decomposition detail coefficients is, the more small values are increased, or vise versa.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: August 23, 2016
    Assignee: Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai
  • Patent number: 9418452
    Abstract: The present invention obtains subband signals by performing a multiresolution decomposition by a wavelet frame with orientation selectivity or a filterbank with orientation selectivity that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations on image data, and, when an image is reconstructed by summing the obtained subband signals, generates reconstructed image data that creates a floating illusion by attenuating or amplifying a subband signal corresponding to at least one of detail filters with a predetermined orientation relative to a floating direction, in which an image is desired to be floated due to an illusion, among the detail filters.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: August 16, 2016
    Assignee: NATIONAL INSTITUTE OF JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hitoshi Arai, Shinobu Arai
  • Patent number: 9374503
    Abstract: According to the present invention, multiresolution decomposition is performed on a color component of image data by using a wavelet frame with orientation selectivity or a filter bank with orientation selectivity and subband signals are obtained; and when reconstructing an image by summing the obtained subband signals, coefficient processing is performed, between a decomposition phase and a synthesis phase in the multiresolution decomposition, on decomposition detail coefficients that are output from the decomposition phase such that the larger the energy of the decomposition detail coefficients is, the more small values are further reduced, and the smaller the energy of the decomposition detail coefficients is, the more small values are increased, or vise versa.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 21, 2016
    Assignee: Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai
  • Publication number: 20160140698
    Abstract: When obtaining subband signals by performing multiresolution decomposition on image data using a broad-sense pinwheel framelet or a pinwheel wavelet frame, having a degree, that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations, and acquiring processed image data by the subband signals in a decomposition phase of the multiresolution decomposition, or processed image data that has been reconstructed into an image by summing the subband signals in a synthesis phase of the multiresolution decomposition, the present invention performs attenuation or amplification of the subband signals in the decomposition phase of the multiresolution decomposition that correspond to at least one of the filters.
    Type: Application
    Filed: January 26, 2016
    Publication date: May 19, 2016
    Applicant: National Institute of Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai
  • Patent number: 9292910
    Abstract: When obtaining subband signals by performing multiresolution decomposition on image data using a broad-sense pinwheel framelet or a pinwheel wavelet frame, having a degree, that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations, and acquiring processed image data by the subband signals in a decomposition phase of the multiresolution decomposition, or processed image data that has been reconstructed into an image by summing the subband signals in a synthesis phase of the multiresolution decomposition, the present invention performs attenuation or amplification of the subband signals in the decomposition phase of the multiresolution decomposition that correspond to at least one of the filters.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: March 22, 2016
    Assignee: NATIONAL INSTITUTE OF JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hitoshi Arai, Shinobu Arai
  • Publication number: 20150363904
    Abstract: According to an aspect of the present invention, processed image data in which distortion due to breast cancer is enhanced is generated by performing, on mammographic image data, image processing using a filter that relatively amplifies medium band components between high and low frequency bands and/or a filter that increases or reduces components having predetermined orientations. According to an aspect of the invention, a processed image for supporting breast cancer diagnosis is printed or recorded on a printing medium or a computer-readable recording medium and, in the processed image, band components between high and low frequency bands in a mammographic original image are relatively amplified and/or components having predetermined orientations in the mammographic original image are increased or reduced.
    Type: Application
    Filed: January 29, 2014
    Publication date: December 17, 2015
    Applicant: Japan Science and Technology Agency
    Inventors: Hitoshi ARAI, Takuya UEDA, Hiroko TSUNODA, Shinobu ARAI
  • Publication number: 20150264222
    Abstract: According to the present invention, multiresolution decomposition is performed on a color component of image data by using a wavelet frame with orientation selectivity or a filter bank with orientation selectivity and subband signals are obtained; and when reconstructing an image by summing the obtained subband signals, coefficient processing is performed, between a decomposition phase and a synthesis phase in the multiresolution decomposition, on decomposition detail coefficients that are output from the decomposition phase such that the larger the energy of the decomposition detail coefficients is, the more small values are further reduced, and the smaller the energy of the decomposition detail coefficients is, the more small values are increased, or vise versa.
    Type: Application
    Filed: September 30, 2013
    Publication date: September 17, 2015
    Applicant: Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai
  • Publication number: 20150131906
    Abstract: When obtaining subband signals by performing multiresolution decomposition on image data using a broad-sense pinwheel framelet or a pinwheel wavelet frame, having a degree, that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations, and acquiring processed image data by the subband signals in a decomposition phase of the multiresolution decomposition, or processed image data that has been reconstructed into an image by summing the subband signals in a synthesis phase of the multiresolution decomposition, the present invention performs attenuation or amplification of the subband signals in the decomposition phase of the multiresolution decomposition that correspond to at least one of the filters.
    Type: Application
    Filed: May 13, 2013
    Publication date: May 14, 2015
    Applicant: National Institute of Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai
  • Publication number: 20150078676
    Abstract: In the present invention, subband signals are obtained by performing multiresolution decomposition on image data by using a broad-sense pinwheel framelet that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations, and that has a degree. When an image is reconstructed by summing the obtained subband signals, the reconstructed image data is generated by attenuating or amplifying a subband signal corresponding to at least one of filters that have predetermined frequency characteristics and/or a predetermined orientation among the filters.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 19, 2015
    Applicant: National Institute of Japan Science and Technology Agency
    Inventors: Hitoshi ARAI, Shinobu ARAI
  • Publication number: 20150055885
    Abstract: The present invention obtains subband signals by performing a multiresolution decomposition by a wavelet frame with orientation selectivity or a filterbank with orientation selectivity that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations on image data, and, when an image is reconstructed by summing the obtained subband signals, generates reconstructed image data that creates a floating illusion by attenuating or amplifying a subband signal corresponding to at least one of detail filters with a predetermined orientation relative to a floating direction, in which an image is desired to be floated due to an illusion, among the detail filters.
    Type: Application
    Filed: September 15, 2014
    Publication date: February 26, 2015
    Applicant: National Institute of Japan Science and Technology Agency
    Inventors: Hitoshi ARAI, Shinobu ARAI
  • Patent number: 8873879
    Abstract: The present invention obtains subband signals by performing a multiresolution decomposition by a wavelet frame with orientation selectivity or a filterbank with orientation selectivity that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations on image data, and, when an image is reconstructed by summing the obtained subband signals, generates reconstructed image data that creates a floating illusion by attenuating or amplifying a subband signal corresponding to at least one of detail filters with a predetermined orientation relative to a floating direction, in which an image is desired to be floated due to an illusion, among the detail filters.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: October 28, 2014
    Assignee: National Institute of Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai
  • Patent number: 4614043
    Abstract: A measuring apparatus for determining dimensional data for use in designing a coupler which is manufactured to be fitted between the free ends of already assembled pipes in a pipe system is disclosed. A first joint on which a first arm is slidably supported is pivotally connected to one end of a rod adapted for gauging the distance between the points of bend in the coupler to be manufactured. A first joint on which a second arm is slidably supported is itself slidably mounted on the rod for movement therealong. With this arrangement, measurement of the angle defined by relative rotation of the rod about its axis to the arms is limited to one point, that is, at either of the joints. In addition, this apparatus permits easy installation on the site of measurement. The relative movement between the rod and the second arm and that between each arm and its associated attachment plate for engaging to the respective free end, are automatically measured by an electrical detection device.
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: September 30, 1986
    Assignee: Osaka Shipbuilding Co., Ltd.
    Inventors: Ryuzo Nagano, Shinobu Arai, Koji Matsui