Patents by Inventor Fumio Nakaya
Fumio Nakaya 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).
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Patent number: 8422084Abstract: There is provided an image processing apparatus includes a spectral reflectance calculation unit that calculates spectral reflectances respectively in plural wavelength ranges, based on intensity of reflected light from an object to be imaged and irradiation intensity of light that the object to be imaged is irradiated with; a determination unit that obtains derivatives of a function represented on the basis of the spectral reflectances calculated by the spectral reflectance calculation unit, and determines a number of eigenvectors, depending on whether the derivatives are positive or negative; a coefficient calculation unit that calculates coefficients where the spectral reflectances are expressed by linear combination of the number of eigenvectors and the coefficients respectively related to the eigenvectors, the number of eigenvectors being determined by the determination unit; and an output unit that outputs the coefficients calculated by the coefficient calculation unit.Type: GrantFiled: June 5, 2007Date of Patent: April 16, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Fumio Nakaya, Hirokazu Ichikawa
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Patent number: 7920300Abstract: A device includes: a first lighting unit that illuminates an object at a first incident angle; a second lighting unit that illuminates an object at a second incident angle, the second incident angle being larger than the first incident angle; an image-input unit that receives light and generates image signals in accordance with the received light; and a guiding unit that guides light diffusely reflected from the object illuminated by either the first lighting unit or the second lighting unit to the image-input unit.Type: GrantFiled: March 27, 2006Date of Patent: April 5, 2011Assignee: Fuji Xerox Co., Ltd.Inventors: Fumio Nakaya, Hirokazu Ichikawa
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Patent number: 7821670Abstract: An image processing apparatus comprises: a first calculation section that calculates a plurality of spectral reflectances at a plurality of wavelengths based on intensities of light irradiating an object and reflected from the object, the light having a certain spectral energy distribution; a second calculation section that calculates color descriptor values of the object based on the spectral reflectances calculated by the first calculation section; a third calculation section that calculates a set of factors when the color descriptor values are expressed using a linear combination of a predetermined plurality of eigenvectors, factors associated with the respective eigenvectors, and either spectral energy of a reference light or theoretical spectral energy of a virtual light; and an output section that outputs the factors calculated by the third calculation section.Type: GrantFiled: May 18, 2007Date of Patent: October 26, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Fumio Nakaya, Hirokazu Ichikawa
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Patent number: 7724402Abstract: An image reader includes an illumination unit that irradiates an object to be read with light, a first optical system that allows a first reflection light from the object to be read advance therein, a second optical system that allows a second reflection light from the object to be read to advance therein, a switching unit that switches between the first optical system and the second optical system to be used, an imaging unit that forms an image of the first reflection light that advances in the first optical system and an image of the second reflection light that advances in the second optical system by switching between the first optical system and the second optical system by the switching unit, and a light receiving unit that receives the first reflection light and the second reflection light which are formed into images and generates respective image signals.Type: GrantFiled: January 31, 2006Date of Patent: May 25, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Hirokazu Ichikawa, Fumio Nakaya
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Patent number: 7643183Abstract: The imaging apparatus includes a light application unit that applies light to an object to be imaged, a first converging unit that converges diffuse reflection rays from the object to be imaged, a second converging unit that converges specular reflection rays from the object to be imaged, an image pickup unit that receives the rays converged by the first converging unit and by the second converging unit, and generates image signals corresponding to each rays, an image data generating unit that generates image data by combining first image signals corresponding to the rays converged by the first converging unit with second image signals corresponding to the rays converged by the second converging unit, and an image data output unit that outputs the image data generated by the image data generating unit.Type: GrantFiled: March 14, 2006Date of Patent: January 5, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Fumio Nakaya, Hirokazu Ichikawa, Yoichi Miyake, Norimichi Tsumura
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Patent number: 7531789Abstract: An image processing device includes: a spectral reflectance calculation unit that calculates a spectral reflectance on the basis of intensities of reflection light and irradiation intensities; a color value calculation unit that obtains color values based on the spectral reflectance; a coefficient calculation unit that calculates coefficients respectively for a plurality of predetermined eigenvectors where the color values are expressed by a linear combination between the plurality of predetermined eigenvectors, the coefficients, and spectral energies of at least two types of irradiation light; and an output unit that generates and outputs information corresponding to estimation values within a wavelength range defined by excluding at least one of a low and a high wavelength ranges from the wavelength range including the wavelengths of visible light, among estimation values of the spectral reflectances expressed by linear combination between the respective coefficients calculated by the coefficient calculatioType: GrantFiled: May 11, 2007Date of Patent: May 12, 2009Assignee: Fuji Xerox Co., Ltd.Inventors: Fumio Nakaya, Hirokazu Ichikawa
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Patent number: 7397565Abstract: A device has first and second units that lights an object at first or second incident angles; a unit that generates image signals according to the intensity of the received light; units that guides diffusely and specularly reflected light from the object to the image-input unit; units that generates glossiness information, and texture information for the object, and image data based on image signals generated; a unit that generates and outputs the image data from glossiness information, texture information, and image data.Type: GrantFiled: March 14, 2006Date of Patent: July 8, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Fumio Nakaya, Hirokazu Ichikawa
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Publication number: 20080151325Abstract: There is provided an image processing apparatus includes a spectral reflectance calculation unit that calculates spectral reflectances respectively in plural wavelength ranges, based on intensity of reflected light from an object to be imaged and irradiation intensity of light that the object to be imaged is irradiated with; a determination unit that obtains derivatives of a function represented on the basis of the spectral reflectances calculated by the spectral reflectance calculation unit, and determines a number of eigenvectors, depending on whether the derivatives are positive or negative; a coefficient calculation unit that calculates coefficients where the spectral reflectances are expressed by linear combination of the number of eigenvectors and the coefficients respectively related to the eigenvectors, the number of eigenvectors being determined by the determination unit; and an output unit that outputs the coefficients calculated by the coefficient calculation unit.Type: ApplicationFiled: June 5, 2007Publication date: June 26, 2008Inventors: Fumio Nakaya, Hirokazu Ichikawa
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Publication number: 20080137154Abstract: An image processing apparatus comprises: a first calculation section that calculates a plurality of spectral reflectances at a plurality of wavelengths based on intensities of light irradiating an object and reflected from the object, the light having a certain spectral energy distribution; a second calculation section that calculates color descriptor values of the object based on the spectral reflectances calculated by the first calculation section; a third calculation section that calculates a set of factors when the color descriptor values are expressed using a linear combination of a predetermined plurality of eigenvectors, factors associated with the respective eigenvectors, and either spectral energy of a reference light or theoretical spectral energy of a virtual light; and an output section that outputs the factors calculated by the third calculation section.Type: ApplicationFiled: May 18, 2007Publication date: June 12, 2008Inventors: Fumio Nakaya, Hirokazu Ichikawa
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Publication number: 20080128593Abstract: An image processing device includes: a spectral reflectance calculation unit that calculates a spectral reflectance on the basis of intensities of reflection light and irradiation intensities; a color value calculation unit that obtains color values based on the spectral reflectance; a coefficient calculation unit that calculates coefficients respectively for a plurality of predetermined eigenvectors where the color values are expressed by a linear combination between the plurality of predetermined eigenvectors, the coefficients, and spectral energies of at least two types of irradiation light; and an output unit that generates and outputs information corresponding to estimation values within a wavelength range defined by excluding at least one of a low and a high wavelength ranges from the wavelength range including the wavelengths of visible light, among estimation values of the spectral reflectances expressed by linear combination between the respective coefficients calculated by the coefficient calculatioType: ApplicationFiled: May 11, 2007Publication date: June 5, 2008Inventors: Fumio Nakaya, Hirokazu Ichikawa
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Patent number: 7336431Abstract: A device includes a light source; a first guiding unit that guides the light from the light source to an object at prescribed incident angles including a first incident angle and a second incident angle; a signal generating unit that receives light and that generates an image signal based on the received light; a second guiding unit that guides the light reflected from the object to the signal generating unit; and a control unit that controls the first guiding unit to guide the light from the light source to the object at least two different incident angles including the first incident angle and the second incident angle, and controls the signal generating unit to generate image signals for the at least two different incident angles.Type: GrantFiled: April 7, 2006Date of Patent: February 26, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Hirokazu Ichikawa, Fumio Nakaya
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Publication number: 20070177233Abstract: An image reader includes an illumination unit that irradiates an object to be read with light, a first optical system that allows a first reflection light from the object to be read advance therein, a second optical system that allows a second reflection light from the object to be read to advance therein, a switching unit that switches between the first optical system and the second optical system to be used, an imaging unit that forms an image of the first reflection light that advances in the first optical system and an image of the second reflection light that advances in the second optical system by switching between the first optical system and the second optical system by the switching unit, and a light receiving unit that receives the first reflection light and the second reflection light which are formed into images and generates respective image signals.Type: ApplicationFiled: January 31, 2006Publication date: August 2, 2007Inventors: Hirokazu Ichikawa, Fumio Nakaya
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Publication number: 20070091465Abstract: A device includes a light source; a first guiding unit that guides the light from the light source to an object at prescribed incident angles including a first incident angle and a second incident angle; a signal generating unit that receives light and that generates an image signal based on the received light; a second guiding unit that guides the light reflected from the object to the signal generating unit; and a control unit that controls the first guiding unit to guide the light from the light source to the object at least two different incident angles including the first incident angle and the second incident angle, and controls the signal generating unit to generate image signals for the at least two different incident angles.Type: ApplicationFiled: April 7, 2006Publication date: April 26, 2007Inventors: Hirokazu Ichikawa, Fumio Nakaya
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Publication number: 20060215238Abstract: A device includes: a first lighting unit that illuminates an object at a first incident angle; a second lighting unit that illuminates an object at a second incident angle, the second incident angle being larger than the first incident angle; an image-input unit that receives light and generates image signals in accordance with the received light; and a guiding unit that guides light diffusely reflected from the object illuminated by either the first lighting unit or the second lighting unit to the image-input unit.Type: ApplicationFiled: March 27, 2006Publication date: September 28, 2006Inventors: Fumio Nakaya, Hirokazu Ichikawa
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Publication number: 20060215933Abstract: The imaging apparatus includes a light application unit that applies light to an object to be imaged, a first converging unit that converges diffuse reflection rays from the object to be imaged, a second converging unit that converges specular reflection rays from the object to be imaged, an image pickup unit that receives the rays converged by the first converging unit and by the second converging unit, and generates image signals corresponding to each rays, an image data generating unit that generates image data by combining first image signals corresponding to the rays converged by the first converging unit with second image signals corresponding to the rays converged by the second converging unit, and an image data output unit that outputs the image data generated by the image data generating unit.Type: ApplicationFiled: March 14, 2006Publication date: September 28, 2006Inventors: Fumio Nakaya, Hirokazu Ichikawa, Yoichi Miyake, Norimichi Tsumura
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Publication number: 20060210295Abstract: A device has first and second units that lights an object at first or second incident angles; a unit that generates image signals according to the intensity of the received light; units that guides diffusely and specularly reflected light from the object to the image-input unit; units that generates glossiness information, and texture information for the object, and image data based on image signals generated; a unit that generates and outputs the image data from glossiness information, texture information, and image data.Type: ApplicationFiled: March 14, 2006Publication date: September 21, 2006Inventors: Fumio Nakaya, Hirokazu Ichikawa
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Patent number: 6166641Abstract: A termite sensor and intrusion detection system for detecting the intrusion of termites into wooden buildings. Conductive particles fill a container which termites can eat. A pair of electrodes are disposed opposite each other inside the container. A pair of terminals are connected to the electrodes and extend outside the container. Termites are detected by a change of conductivity between the electrodes, when termites are detected a warning device generates a warning signal.Type: GrantFiled: November 29, 1999Date of Patent: December 26, 2000Assignees: Toshiba Chemical Corporation, Ikari CorporationInventors: Toshihiko Oguchi, Fumio Nakaya, Masao Shimada
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Patent number: 5796869Abstract: An image processing system which reads an image on an original document every pixel by a scanner, processes the read image data, and outputs the processed image data. The image processing system includes a system for recognizing a circular image of a specific color.Type: GrantFiled: August 30, 1996Date of Patent: August 18, 1998Assignee: Fuji Xerox Co., Ltd.Inventors: Masato Tsuji, Masao Seki, Svay Leng, Koji Aikawa, Koichiro Shinohara, Fumio Nakaya
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Patent number: 5629990Abstract: An image processing system which reads, in pixel units, an image on an original document using a scanner, processes the read image data, and outputs the processed image data. The image processing system includes a system for recognizing a circular image of a specific color.Type: GrantFiled: June 2, 1995Date of Patent: May 13, 1997Assignee: Fuji Xerox Co., Ltd.Inventors: Masato Tsuji, Masao Seki, Svay Leng, Koji Aikawa, Koichiro Shinohara, Fumio Nakaya
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Patent number: 5515451Abstract: An image processing system which reads, in pixel units, an image on an original document using a scanner, processes the read image data, and outputs the processed image data. The image processing system includes a system for recognizing a circular image of a specific color.Type: GrantFiled: October 7, 1993Date of Patent: May 7, 1996Assignee: Fuji Xerox Co., Ltd.Inventors: Masato Tsuji, Masao Seki, Svay Leng, Koji Aikawa, Koichiro Shinohara, Fumio Nakaya