Patents by Inventor Hiroaki Sugiura

Hiroaki Sugiura 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: 20070124030
    Abstract: Systems for determining a movement amount detect a steering angle of a moving body on which a camera is mounted and extract matching inspection areas of a prescribed shape and size from frames captured by a camera. The systems rotate the inspection area of a second frame relative to the inspection area of a first frame, the rotation based on the detected steering angle. The systems execute pattern matching between the inspection areas and calculate positions of subject points that correspond to identical characteristic points in each frame. The systems, methods, and programs determine the movement amount based on a displacement amount between the calculated subject point positions.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 31, 2007
    Applicant: AISIN AW CO., LTD.
    Inventors: Toshihiro Mori, Tomoki Kubota, Hiroaki Sugiura, Hideto Miyazaki
  • Patent number: 7221791
    Abstract: The present invention relates to processes of color data, and an object of the present invention is to provide a color converter and color converting method, with a color converting process for enhancing the saturation for color data, capable of preventing the influences of noise components from being emphasized and also preventing damaged color from occurring. In order to achieve the object, multiplication coefficient calculation means calculates a multiplication coefficient based on characteristic information of first color data which is a target of color conversion, and second color correction amount calculation means calculates a second color correction amount by multiplying a first color correction amount by the multiplication coefficient obtained from first color correction amount calculation means. Then, in color correction amount addition means, the second color correction amount is added to the first color data, so that second color data after the color conversion is obtained.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: May 22, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shuichi Kagawa, Hiroaki Sugiura
  • Publication number: 20070088478
    Abstract: A vehicle moving distance detecting method that includes the steps of obtaining a moving distance based upon pulse signals received from a vehicle speed sensor when a vehicle speed obtained based upon the pulse signals received from the vehicle speed sensor is equal to or higher than a predetermined reference vehicle speed; and acquiring a plurality of image data sets, which have been captured at different points in time using an image capturing mechanism provided to the vehicle, and obtaining the moving distance by performing image processing for the plurality of image data sets when the vehicle speed is less than the reference vehicle speed.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 19, 2007
    Applicant: AISIN AW CO., LTD.
    Inventors: Toshihiro Mori, Hiroaki Sugiura, Hideto Miyazaki, Tomoki Kubota
  • Publication number: 20070088474
    Abstract: A parking assist apparatus includes a CPU for obtaining image data from a camera mounted on a vehicle, an image memory for storing the obtained image data as recorded image data, and an image processor for recognizing an object based on the image data. The image processor determines when to display a parking assist image to reveal an area hidden as a blind spot of the camera when the recognized object is in the blind spot of the camera and displays the parking assist image combining both current image data and the recorded image data for the area currently hidden as the blind spot of the camera, together with an indicator indicating the current position of the vehicle superimposed on the display.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 19, 2007
    Applicant: AISIN AW CO., LTD.
    Inventors: Hiroaki Sugiura, Hideto Miyazaki, Toshihiro Mori
  • Publication number: 20070086030
    Abstract: A color conversion apparatus receives red-green-blue color data, calculates characteristic information and first hue region data from the color data, adjusts the first hue region data according to the characteristic information to obtain second to N-th hue region data, N being an integer equal to or greater than three, generates matrix coefficients for the second to N-th hue region data, and performs a matrix operation on the second to N-th hue region data to obtain color data with four or more color components. Color data with three primary components are thereby converted to color data with four or more primary components by simple calculations, without using a large amount of memory space.
    Type: Application
    Filed: October 17, 2006
    Publication date: April 19, 2007
    Inventors: Shuichi Kagawa, Jun Someya, Hiroaki Sugiura
  • Publication number: 20070057816
    Abstract: A navigation apparatus includes a controller, an image data input unit adapted to acquire image data from a camera installed in a vehicle, and an image memory for storing the image data. The navigation apparatus also includes an image processing unit converting data extracted from the acquired image data to data simulating a virtual viewpoint. The image processing unit stores the converted data in the image memory in associated with position data indicating the position at which the image was taken by the camera. Using a plurality of sets of converted data, the image processing unit generates bird's eye view data representing a bird's-eye image of an area nearby the current vehicle position. When the controller determines that parking operation is stopped, the image processing unit displays the bird's eye view image together with a mark indicating the current vehicle position.
    Type: Application
    Filed: September 6, 2006
    Publication date: March 15, 2007
    Applicant: AISIN AW CO., LTD.
    Inventors: Seiji Sakakibara, Tomoki Kubota, Toshihiro Mori, Hiroaki Sugiura
  • Patent number: 7177469
    Abstract: In a color conversion device, first color correction amounts are determined from first image data consisting of a plurality of first color data, and second color correction amounts are determined from characteristics information of the first image data is calculated, and the first color correction amounts. The second color correction amounts are added to the first image data, to determine the second image data. The characteristics information is determined by calculating the characteristics information by a calculation using the lightness information and the chroma information of the first image data, so that color conversion reflecting characteristics information including the lightness information and the chroma information of the image is achieved.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: February 13, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shuichi Kagawa, Hiroaki Sugiura
  • Publication number: 20070019087
    Abstract: A pixel signal having a k-th spectral characteristic at a pixel interpolation position occupied by a pixel signal having an h-th spectral characteristic is generated from a set of pixel signals arrayed in a two-dimensional plane, each having one of a plurality of spectral characteristics, by calculating a difference between low-frequency components, corresponding to a degree of correlation between pixel signals having the k-th and h-th spectral characteristics in a neighborhood of the pixel interpolation position (8r, 8g, 8b, 24k, 24h, 26), calculating a non-correlation value corresponding to a degree of non-correlation between the pixel signals having the k-th and h-th spectral characteristics in the neighborhood of the pixel interpolation position (7r, 7g, 7b, 23k, 23h, 25), and obtaining the pixel signal having the k-th spectral characteristic at the pixel interpolation position by using the calculated difference and the non-correlation value (27, 28, 29).
    Type: Application
    Filed: July 22, 2005
    Publication date: January 25, 2007
    Inventors: Tetsuya Kuno, Junko Makita, Hiroaki Sugiura, Narihrio Matoba, Masashi Tamura
  • Patent number: 7158667
    Abstract: In an image display device for receiving and displaying image data, color converter converts the image data on the basis of conversion characteristics data stored in a conversion characteristics storage. The conversion characteristics designation means including means for designating the hue of the colors outputs the conversion characteristics designation data, and conversion characteristics setting means calculates the conversion characteristics data on the basis of the conversion characteristics designation data, and sets the conversion characteristics data in the conversion characteristics storage. The color converter comprises a calculation term generator for receiving the first image data, and outputting calculation terms which are effective just for the specific hues; and a matrix calculator performing matrix calculation using the calculation terms effective just for the specific hues. The user can adjust just the hue of the desired color.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: January 2, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shuichi Kagawa, Hiroaki Sugiura, Mariko Takahashi, Narihiro Matoba
  • Patent number: 7146038
    Abstract: A method and apparatus for converting color includes converting the hue, lightness, and/or saturation of first color data representing each of plurality of colors forming a color image, to produce second color data corresponding to the first color data. The second color data is converted to third color data suitable for the color space which can be expressed by the image output device used for the output of the color image. Color contraction which is conventionally associated with color conversion that increases lightness or saturation can be prevented.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: December 5, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shuichi Kagawa, Hiroaki Sugiura, Mariko Takahashi, Narihiro Matoba
  • Patent number: 7146044
    Abstract: A color conversion device and method are provided in which six hues and inter-hue areas are corrected independently, and the conversion characteristics can be changed flexibly, and which does not require a large-capacity memory. Coefficients of second-order and first-order calculation terms relating to the respective hues, first-order calculation term using comparison-result data relating to the respective inter-hue areas, and product terms based on the comparison-result data and the hue data are changed so as to change the target hue or inter-hue area, without influencing other hues or inter-hue areas.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: December 5, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masako Asamura, Shuichi Kagawa, Yoshiko Hatano, Hiroaki Sugiura
  • Patent number: 7136190
    Abstract: A conventional color conversion apparatus was associated with a problem of generation of an achromatic component and reduction in the luminance. A color conversion apparatus according to the present invention generates new color data corresponding to color red of red, green and blue by means of matrix calculation using a first calculation term which is effective for just one of the hues of red, yellow, blue, green, cyan, magenta and yellow, and a second calculation term which is calculated from the first calculation term and which is effective for a predetermined inter-hue region included in at least one of inter-hue zones of red-yellow, yellow-green, green-cyan, cyan-magenta, and magenta-red, so that color conversion can be achieved without generation of an unnecessary achromatic component or reduction in the luminance.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: November 14, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shuichi Kagawa, Hiroaki Sugiura, Junichi Nose
  • Publication number: 20060250514
    Abstract: An imaging apparatus including at least an imaging device having a plurality of photoelectric transfer devices arranged in matrix-shape to detect a light irradiated to each photoelectric transfer device and transfer to electric signal, and imaging means for imaging an image of a photogenic object on a surface of the imaging devices. The imaging means images at least two similar images of the photogenic subject on different area of the surface of the imaging device, and the imaging apparatus further includes electric signal processing means to form one image of photogenic subject from at least two images of photogenic subject. Since a plurality of images of photogenic subject can be formed on the imaging device by a plurality of image formation lenses, a thinner imaging apparatus can be realized.
    Type: Application
    Filed: July 10, 2006
    Publication date: November 9, 2006
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Mitsuo Inoue, Tomohiro Sasagawa, Hiroaki Sugiura, Masao Hamamura
  • Patent number: 7133075
    Abstract: An image capture apparatus which is compact and structurally simple and allows for prevention of a flicker noise, a method of capturing an image which allows for prevention of a flicker noise, and a mobile terminal using the apparatus and the method, are provided. In the image capture apparatus, a vertical cycle is adjusted so as to maintain 20 fps or 20/2m (m is an integer) fps, thereby to prevent a flicker noise in an image as obtained. To this end, in the image capture apparatus, a frequency of a horizontal transfer clock, a horizontal count level and a vertical line count level may be adjusted. Further, a fraction count is provided to adjust the length of one vertical cycle. Moreover, the image capture apparatus may be incorporated in a mobile terminal.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: November 7, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kozo Ishida, Tetsuya Kuno, Koichi Yamashita, Hiroaki Sugiura, Takashi Itow
  • Patent number: 7126591
    Abstract: An image having a large contrast and excellent visibility to the viewer is displayed on an image display device used in the presence of light. A black-display characteristic specifying means generates a black-display characteristic specifying data indicating the brightness of the external light reflected from the surface of an image display means, which is obtained by operating an external-light brightness specifying bar to be displayed on the image display means. A black-approximated data calculating means calculates, based on the black-display characteristic specifying data, a black-approximated data related to at least one of luminance, chromaticity and tristimulus values in displaying black with the image display means. On receipt of an image data and the black-approximated data, a black correction means calculates a black-corrected image data, and displays an image on the image display means based on the black-corrected image data.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: October 24, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shuichi Kagawa, Hiroaki Sugiura, Mariko Takahashi, Narihiro Matoba
  • Patent number: 7119927
    Abstract: Responsive to image data of three colors, six hue data are obtained, and then first comparison-result data and second-order terms each relating to one of the six hues, and second comparison-result data each relating to one of the six inter-hue areas are obtained. Matrix calculation is performed on the first comparison-result data, the second comparison-result data, and the second-order terms, using coefficients. By varying the coefficients, adjustment can be made to only the target hue or inter-hue area, without affecting other hues and inter-hue areas. Thus, the six hues and six inter-hue areas can be varied independently, and the large-capacity memory is not required. In addition, gray scale conversion is applied to the result of the matrix calculation, so as to compensate for the non-linearity of the output device.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: October 10, 2006
    Assignee: Mitsubishi Kabushiki Kaisha
    Inventors: Hiroaki Sugiura, Shuichi Kagawa
  • Patent number: 7098953
    Abstract: An imaging apparatus including at least an imaging device having a plurality of photoelectric transfer devices arranged in matrix-shape to detect a light irradiated to each photoelectric transfer device and transfer to electric signal, and imaging means for imaging an image of a photogenic object on a surface of the imaging devices. The imaging means images at least two similar images of the photogenic subject on different area of the surface of the imaging device, and the imaging apparatus further includes electric signal processing means to form one image of photogenic subject from at least two images of photogenic subject. Since a plurality of images of photogenic subject can be formed on the imaging device by a plurality of image formation lenses, a thinner imaging apparatus can be realized.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: August 29, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Mitsuo Inoue, Tomohiro Sasagawa, Hiroaki Sugiura, Masao Hamamura
  • Patent number: 7075554
    Abstract: In an image display device for receiving and displaying image data, color converter converts the image data on the basis of conversion characteristics data stored in a conversion characteristics storage. The conversion characteristics designation means including means for designating the chroma of the colors outputs the conversion characteristics designation data, and conversion characteristics setting means calculates the conversion characteristics data on the basis of the conversion characteristics designation data, and sets the conversion characteristics data in the conversion characteristics storage. The color converter comprises a calculation term generator for receiving the first image data, and outputting calculation terms which are effective just for the specific hues; and a matrix calculator performing matrix calculation using the calculation terms effective just for the specific hues. The user can adjust just the chroma of the desired color.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: July 11, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shuichi Kagawa, Hiroaki Sugiura, Mariko Takahashi, Narihiro Matoba
  • Patent number: 7064864
    Abstract: A reproducible color gamut compression apparatus is provided that includes: a target reproducible color gamut computing unit for computing a target reproducible color gamut; a compression ratio computing unit for computing a compression ratio, based on reproducible color gamuts of display devices and on the target reproducible color gamut; a compression method determination information acquiring unit for acquiring information used to determine a compression method; a compression method determining unit for determining a method of compressing a source reproducible color gamut, based on the compression method determination information; and a reproducible color gamut compressing unit for converting the source reproducible color gamut into the target reproducible color gamut, using the determined compression method.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: June 20, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Mariko Takahashi, Narihiro Matoba, Shuichi Kagawa, Hiroaki Sugiura
  • Patent number: 7034842
    Abstract: A process is provided for developing and converting a lookup table (hereinafter called a “LUT”) composed of only characteristic points of the characteristic of a color device and having a volume smaller than that of a multidimensional LUT into a multidimensional LUT by a table development process. Image data converting means uses the multidimensional LUT to convert input image data into output image data. Thus, an effect can be obtained in that a color management apparatus can be operated with only the LUT composed of only characteristic points of the characteristic of the device and having a small volume.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: April 25, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tsuneo Sato, Mariko Takahashi, Narihiro Matoba, Hiroaki Sugiura, Shuichi Kagawa, Masayuki Saito