Patents by Inventor Hiroaki Ikegami

Hiroaki Ikegami 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: 20060200335
    Abstract: A device for outputting translated document has a document input part that inputs document data to be translated; a translation part that translates the document data inputted by the document input part; an output destination specifying part that specifies an output destination of the translated document for each target language; and an output destination switching part that switches the output destination of the translated document data based on the output destination specified by the output destination specifying part.
    Type: Application
    Filed: September 9, 2005
    Publication date: September 7, 2006
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Katsuhiko Itonori, Hiroaki Ikegami, Hideaki Ashikaga, Shunichi Kimura, Hiroki Yoshimura, Masanori Onda, Masahiro Kato, Masanori Satake
  • Patent number: 7061505
    Abstract: An image processing device can reproduce the original color of an electronic document on an output device faithfully and can simulate the appearance of color of a recorded product on a display device accurately. Color temperature information of an electronic document is recognized by an electronic document color temperature information recognition unit and delivered to a first color correction conversion unit. The first color correction conversion unit carries out color conversion based on the color temperature information of the electronic document so that a recorded product output from an output device assumes substantially the same color as the electronic document when it is observed under an illumination light source having a color temperature indicated by the color temperature information of the electronic document. An image is formed by the output device based on the color converted image signal to output the recorded product.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: June 13, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomoyasu Matsuzaki, Hiroaki Ikegami, Hitoshi Ogatsu
  • Patent number: 7012714
    Abstract: The invention provides a color processing method that is capable of improving the color reproduction accuracy by calculating an adequate amount of black component (referred to as K) with consideration of the coverage restriction when a four-color signal including the black component is generated from a color signal of a input color space. By a YMCK modeling unit, adjustment K calculation unit, restriction K calculation unit and optimal K modeling unit, modeling is performed between the representative color signal and the corresponding optimal K by use of plural color signals that belong to the partial color space, namely the color gamut that is reproducible with three colors and by use of plural color signals that belong to the area on the curved plane that is reproducible with four colors including the black component as the representative color signal. An optimal K determining unit predicts an optimal K corresponding to the input color signal in the input color space based on the model.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: March 14, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Ryosuke Higashikata, Hiroaki Ikegami, Makoto Sasaki
  • Publication number: 20060017950
    Abstract: A document management apparatus and a document management system that selects the document which are best to digitize from among document being used in an office, and set the priority for digitization of each document are provided. The document management apparatus comprising: an accumulator apparatus that stores, the document ID, used place and used time for a document that is used; a computing part that analyzes information stored in accumulator apparatus, and for each document, computes the usability of the document data to be digitized; a specifying part that specifies document that correspond to document data for which the usability is relatively high by comparing it to the usability already computed for the data for each document; and output part that outputs the specified result to client.
    Type: Application
    Filed: March 1, 2005
    Publication date: January 26, 2006
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroaki Ikegami, Katsuhiko Itonori, Masahiro Kato, Shunichi Kimura, Hiroki Yoshimura, Hideaki Ashikaga, Masanori Satake
  • Publication number: 20050238205
    Abstract: An image reading apparatus has a scan quality parameter extraction part, a scan quality evaluation part and a notification part. The scan quality parameter extraction part extracts scan quality parameters representing the quality of a scanned image from image data based on a scan error detection algorithm. The scan quality evaluation part determines whether a scan error occurs, based on the scan error detection algorithm and the scan quality parameters. Also, the notification part notifies a result determined by the scan quality evaluation part to a user.
    Type: Application
    Filed: March 2, 2005
    Publication date: October 27, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shunichi Kimura, Masahiro Kato, Hiroaki Ikegami, Hideaki Ashikaga, Katsuhiko Itonori, Masanori Satake, Hiroki Yoshimura
  • Publication number: 20050149864
    Abstract: An image processing device can reproduce the original color of an electronic document on an output device faithfully and can simulate the appearance of color of a recorded product on a display device accurately. Color temperature information of an electronic document is recognized by an electronic document color temperature information recognition unit and delivered to a first color correction conversion unit. The first color correction conversion unit carries out color conversion based on the color temperature information of the electronic document so that a recorded product output from an output device assumes substantially the same color as the electronic document when it is observed under an illumination light source having a color temperature indicated by the color temperature information of the electronic document. An image is formed by the output device based on the color converted image signal to output the recorded product.
    Type: Application
    Filed: March 4, 2005
    Publication date: July 7, 2005
    Inventors: Tomoyasu Matsuzaki, Hiroaki Ikegami, Hitoshi Ogatsu
  • Patent number: 6885382
    Abstract: An image processing device can reproduce the original color of an electronic document on an output device faithfully and can simulate the appearance of color of a recorded product on a display device accurately. Color temperature information of an electronic document is recognized by an electronic document color temperature information recognition unit and delivered to a first color correction conversion unit. The first color correction conversion unit carries out color conversion based on the color temperature information of the electronic document so that a recorded product output from an output device assumes substantially the same color as the electronic document when it is observed under an illumination light source having a color temperature indicated by the color temperature information of the electronic document. An image is formed by the output device based on the color converted image signal to output the recorded product.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: April 26, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomoyasu Matsuzaki, Hiroaki Ikegami, Hitoshi Ogatsu
  • Patent number: 6724507
    Abstract: Provided is an image processing method and a apparatus of converting a color input image or a partial region thereof in accordance with a color gamut of a color image output apparatus is provided. The method and apparatus is characterized in that only the region requiring color gamut compression can be put to color gamut compression depending on the distribution of an input image, that the direction of the color gamut compression can be controlled continuously for each of the regions; the amount of the color gamut compression can be controlled continuously including clipping, that when color gamut compression is conducted by a color converter of a multi-dimensional DLUT interpolating calculation type, an excessively unnecessary color gamut compression can be avoided particularly upon clipping, and that there is enabled correction for visual bending in iso-hue lines caused by distortion of a color space in each of the regions of the color space.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: April 20, 2004
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroaki Ikegami, Hitoshi Ogatsu, Ryosuke Higashikata, Takahide Inoue
  • Publication number: 20040057614
    Abstract: Adjustment object color space containing movement source partial color space including a color of an object of conversion processing and movement destination partial color space including a color in which the conversion processing is performed so as to inscribe the spaces is handled as a conversion object region. The inside of the conversion object region is moved toward a target color so that coordinates of an adjustment object overlaps with coordinates of a point after movement and the boundary of a movement region moves little or does not move at all. As a result of this, a phenomenon such as a color jump or gradation inversion occurs little in the boundary portion to the outside of an adjustment object region. Therefore, maintenance of gradation continuity of an image of a color adjustment object and prevention of color inversion can be combined to make partial color adjustment.
    Type: Application
    Filed: March 12, 2003
    Publication date: March 25, 2004
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hitoshi Ogatsu, Hiroaki Ikegami
  • Publication number: 20040051886
    Abstract: Receiving an object color signal and an input black colorant quantity associated with the object color signal, an equivalent output black colorant quantity calculating section calculates an equivalent output black colorant quantity in an output color space equivalent to the input black colorant quantity from the input black colorant quantity. An output color signal determining section calculates an output color signal from the object color signal and the equivalent input black colorant quantity, and determines whether or not the coverage restriction is satisfied. When the coverage restriction is not satisfied, an optimum black colorant quantity is calculated by adjusting the input black colorant quantity, and an optimum color signal satisfying the coverage restriction is calculated to generate an output color signal with the optimum black colorant quantity in the restriction black colorant quantity calculating section and subsequent processings.
    Type: Application
    Filed: March 13, 2003
    Publication date: March 18, 2004
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Makoto Sasaki, Hitoshi Ogatsu, Hiroaki Ikegami, Ryosuke Higashikata
  • Publication number: 20030072018
    Abstract: A regulated black colorant amount calculating section calculates a corresponding regulated black colorant amount from the L*a*b* of a plurality of typical color signals in a partial color gamut, which can be represented by three colors excluding black. An optimum black colorant amount modeling section performs color prediction modeling to predict an optimum black colorant amount in a whole color gamut from plural sets of the typical color signal and the regulated black colorant amount. At this time, an extrapolation prediction from a color in a partial color gamut to a whole color gamut is performed to predict the optimum black colorant amount in which a natural color reproduction. By using the color prediction modeling, the optimum black colorant amount determining section determines a corresponding optimum black colorant amount from the L*a*b* of an input lattice point. a YMCK signal calculating section determines residual YMC and outputs a YMCK signal.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 17, 2003
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Makoto Sasaki, Hitoshi Ogatsu, Hiroaki Ikegami
  • Publication number: 20020029715
    Abstract: An LUT1 preparation section 1 and an LUT2 preparation section 2 prepare an LUT1 and an LUT2 for producing linear output from first raw data or second raw data. Using the LUT1 and LUT2, an LUT1 conversion section 3 and an LUT2 inverse conversion section 4 convert CMYK of the first raw data and C′M′Y′K′ of the second raw data into four color values adjusted, and an L matching LUT preparation section 5 prepares an L matching LUT so that the K value of the four color values adjusted becomes equal. A K preservation 4DLUT preparation section 6 prepares a K preservation 4DLUT from the four color values adjusted, the L matching LUT, and the Lab value of the first and second raw data. A 4DLUT reset section 7 resets some of data in the prepared K preservation 4DLUT, whereby partial calorimetric match is intended.
    Type: Application
    Filed: August 30, 2001
    Publication date: March 14, 2002
    Applicant: FUJI XEROX CO., LTD
    Inventors: Hitoshi Ogatsu, Ryosuke Higashikata, Makoto Sasaki, Yoshiharu Hibi, Tetsushi Anabuki, Hiroaki Ikegami
  • Publication number: 20010035968
    Abstract: The invention provides a color processing method that is capable of improving the color reproduction accuracy by calculating an adequate amount of black component (referred to as K) with consideration of the coverage restriction when a four-color signal including the black component is generated from a color signal of a input color space. By a YMCK modeling unit, adjustment K calculation unit, restriction K calculation unit and optimal K modeling unit, modeling is performed between the representative color signal and the corresponding optimal K by use of plural color signals that belong to the partial color space, namely the color gamut that is reproducible with three colors and by use of plural color signals that belong to the area on the curved plane that is reproducible with four colors including the black component as the representative color signal. An optimal K determining unit predicts an optimal K corresponding to the input color signal in the input color space based on the model.
    Type: Application
    Filed: April 20, 2001
    Publication date: November 1, 2001
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Ryosuke Higashikata, Hiroaki Ikegami, Makoto Sasaki
  • Patent number: 6100999
    Abstract: A method to statistically process real input and output data from a color input or output device and predict the color-transfer characteristics from an arbitrary input or output signal, or from the output signal and a part of the input signal to predict the remaining part of the input signal. Real input and output data pairs and prediction-source values are prepared which are used to calculate initial values for weighted coefficients. Matrix elements and the prediction value are calculated so that the sum of the squares of a distance between the predicted output and the corresponding plurality of real output data, weighted with a weighting coefficient, is minimized. The matrix elements and the prediction value are used to recalculate the weighting coefficients.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: August 8, 2000
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hiroaki Ikegami
  • Patent number: 5475510
    Abstract: Method and apparatus for transforming color signals in order to reproduce a tone on an original document faithfully, and an apparatus for executing the method. The color signals transforming method comprises the steps of dividing each of three input signals representative of colors into the higher bits and the lower bits, combining the higher bits to form basic data, combining the higher and lower bits to form interpolation data, and adding the basic data and the interpolation data to each other, thereby forming output signals, in which the hexahedron of an object to be interpolated is divided into six tetrahedrons each passing through one of eight lattice points constituting the hexahedron of the interpolated object, and the different combinations of interpolation data are assigned to the tetrahedrons in one-to-one correspondence manner.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: December 12, 1995
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hiroaki Ikegami
  • Patent number: 5337166
    Abstract: A color signal transforming apparatus of the type in which three or four input signals are each divided into higher bits and lower bits, and output signals are formed by calculating basic data obtained from the combinations of the higher bits and the combination of interpolation data obtained from the combinations of the higher bits and the lower bits. The color signal transforming apparatus comprises an address translation memory for receiving the combination of higher bits as an address signal and transforming the address signal to another address signal, correcting data storing unit for outputting a calculation signal for the lower bits in response to an address signal as the combination of the higher bits, and lower-bit correcting calculating unit for correcting the lower bits by using the output signal of the correcting data storing unit to remarkably reduce the total memory capacity required for a color signal transforming apparatus.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: August 9, 1994
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hiroaki Ikegami
  • Patent number: 5313314
    Abstract: A color signal transforming apparatus which is operable at high speed for four input signals including three color signals and a control signal for K, without increasing the memory capacity not so much. In the apparatus, each of four input signals is divided into the higher bits and the lower bits, so that the higher bits are combined to form basic data and the combined higher bits and lower bits are combined to form interpolation data. The combination of the higher bits and the interpolation data are calculated together to produce output signals. A 16-vertex body of each object to be interpolated is divided into twenty-four 5-vertex bodies each passing through one of sixteen lattice points constituting the 16-vertex body, and the different combinations of interpolation data is assigned to the 5-vertex bodies in one-to-one correspondence manner.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: May 17, 1994
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hiroaki Ikegami
  • Patent number: 5146328
    Abstract: A color converter capable of conversions between various kinds of color signals appropriate for use over a network (i.e., RGB signals, various luminance/chromaticity separated signals that are expressed by linear transformations of said RGB signals, and CIE LAB signals, which signals may or may not be gamma-corrected) and the internal color signals of devices connected to the network can be realized by rewriting associated coefficients and constants using the same circuit. Accurate color conversions can always be accomplished with an inexpensive system layout.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: September 8, 1992
    Assignee: Fuji Xerox Corporation, Ltd.
    Inventors: Toru Yamasaki, Hiroaki Ikegami, Noriaki Seki, Yoshiharu Hibi, Yoshihiro Terada