Patents by Inventor Byung-Tae Oh

Byung-Tae Oh 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: 7742652
    Abstract: Embodiments of the present invention comprise systems and methods for identifying and separating noise from an image.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: June 22, 2010
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Byung Tae Oh, Shijun Sun
  • Patent number: 7738690
    Abstract: Verification of areas within an image corresponding to banknotes includes dividing the image into a plurality of image sections; generating a banknote boundary map having border sections corresponding to a boundary of monetary banknotes within the image; generating a texture decision map having texture sections within a valid range according to a valid monetary banknote; determining a number of objects in the texture decision map by removing texture sections in the texture decision map that correspond to the border sections in the banknote boundary map; calculating a texture property value for each object; calculating a shape property value for each object; and further removing texture sections from the texture decision map corresponding to objects that do not have the texture property value within a first predetermined range and the shape property value within a second predetermined range.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: June 15, 2010
    Assignee: Primax Electronics Ltd.
    Inventors: Xu-Hua Liu, Byung-Tae Oh, Young-Min Kwak, Chung-Chieh Kuo, Tzu-Hung Cheng
  • Patent number: 7706593
    Abstract: A method for verifying areas within an image corresponding to monetary banknotes includes: dividing the image into a plurality of verification sections; generating a banknote boundary map having border sections corresponding to boundaries of valid monetary banknotes; generating a texture decision map from the image having texture sections each having texture values within a valid range according to a valid monetary banknote, determining objects in the texture decision map by removing texture sections in the texture decision map corresponding to border sections in the banknote boundary map; calculating a texture property value for objects according to texture feature values for each verification section; calculating shape property values for each object; and further removing texture sections from the texture decision map corresponding to objects that do not have the texture property value within a first predetermined range and the shape property value within a second predetermined range.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: April 27, 2010
    Assignee: Primax Electronics Ltd.
    Inventors: Xu-Hua Liu, Byung-Tae Oh, Young-Min Kwak, Chung-Chieh Kuo, Chen-Ning Hsi
  • Patent number: 7706592
    Abstract: A method for detecting a boundary of a monetary banknote within an image includes dividing the image into a plurality of sections; generating a color feature map containing color histogram data for each section of the image; generating a gray level feature map indicating a gray level value for each section of the image; recording border sections onto a banknote boundary map, the border sections being sections having color histogram data within a first predetermined range and gray level values within a second predetermined range; removing internal border sections enclosed by perimeter border sections from the banknote boundary map; and dilating the perimeter border sections on the banknote boundary map.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: April 27, 2010
    Assignee: Primax Electronics Ltd.
    Inventors: Xu-Hua Liu, Byung-Tae Oh, Young-Min Kwak, Chung-Chieh Kuo, Ying-Jieh Huang
  • Publication number: 20090185747
    Abstract: A method for texture synthesis for video coding with side information may be implemented by a decoder device. The method may include receiving seed texture at high fidelity. The method may also include receiving remaining portions of synthesized regions at low fidelity. The method may also include receiving marking of regions to synthesize. The method may further include synthesizing the marked regions based on the high-fidelity seed texture and the low-fidelity portions of the synthesized regions.
    Type: Application
    Filed: September 3, 2008
    Publication date: July 23, 2009
    Applicant: Sharp Laboratories of America, Inc.
    Inventors: Christopher A. Segall, Yeping Su, Byung Tae Oh
  • Publication number: 20080152247
    Abstract: Embodiments of the present invention comprise systems and methods for identifying and separating noise from an image.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Inventors: Byung Tae Oh, Shijun Sun
  • Publication number: 20080152296
    Abstract: Embodiments of the present invention comprise systems and methods for image noise characterization, parameterization, removal, reconstruction and/or re-combination with a denoised image.
    Type: Application
    Filed: July 10, 2007
    Publication date: June 26, 2008
    Inventors: Byung Tae Oh, Shawmin Lei
  • Publication number: 20080069424
    Abstract: A method for characterizing texture of areas within an image corresponding to monetary banknotes includes dividing the image into a plurality of sections; calculating a gray level for each section; selecting potential sections from the sections, the potential sections having gray levels within a predetermined range; selecting bill sections from the potential sections, the bill sections having pixels within a predefined color range and a predefined continuous color gradient range; generating a binary edge map according to gray levels of pixels within the bill sections; and calculating a texture value for each bill section according to the binary edge map.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 20, 2008
    Inventors: Xu-Hua Liu, Byung-Tae Oh, Young-Min Kwak, Chung-Chieh Kuo, Ying-Jieh Huang
  • Publication number: 20080069423
    Abstract: A color processing method for identification of areas within an image corresponding to monetary banknotes includes dividing the image into a plurality of sections; extracting color histogram data for each section; assigning a color vector for each section according to the color histogram data for the section; comparing the color vector for each section to a color lookup table to determine a probability of the section corresponding to monetary banknotes; and selecting probable sections having the probability exceeding a first predetermined threshold.
    Type: Application
    Filed: September 19, 2006
    Publication date: March 20, 2008
    Inventors: Xu-Hua Liu, Byung-Tae Oh, Young-Min Kwak, Chung-Chieh KUO, Ying-Jieh Huang
  • Publication number: 20080069427
    Abstract: A method for verifying areas within an image corresponding to monetary banknotes includes: dividing the image into a plurality of verification sections; generating a banknote boundary map having border sections corresponding to boundaries of valid monetary banknotes; generating a texture decision map from the image having texture sections each having texture values within a valid range according to a valid monetary banknote, determining objects in the texture decision map by removing texture sections in the texture decision map corresponding to border sections in the banknote boundary map; calculating a texture property value for objects according to texture feature values for each verification section; calculating shape property values for each object; and further removing texture sections from the texture decision map corresponding to objects that do not have the texture property value within a first predetermined range and the shape property value within a second predetermined range.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 20, 2008
    Inventors: Xu-Hua Liu, Byung-Tae Oh, Young-Min Kwak, Chung-Chieh KUO, Chen-Ning Hsi
  • Publication number: 20080069425
    Abstract: A method for detecting a boundary of a monetary banknote within an image includes dividing the image into a plurality of sections; generating a color feature map containing color histogram data for each section of the image; generating a gray level feature map indicating a gray level value for each section of the image; recording border sections onto a banknote boundary map, the border sections being sections having color histogram data within a first predetermined range and gray level values within a second predetermined range; removing internal border sections enclosed by perimeter border sections from the banknote boundary map; and dilating the perimeter border sections on the banknote boundary map.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 20, 2008
    Inventors: Xu-Hua Liu, Byung-Tae Oh, Young-Min Kwak, Chung-Chieh Kuo, Ying-Jieh Huang
  • Publication number: 20080069426
    Abstract: Verification of areas within an image corresponding to banknotes includes dividing the image into a plurality of image sections; generating a banknote boundary map having border sections corresponding to a boundary of monetary banknotes within the image; generating a texture decision map having texture sections within a valid range according to a valid monetary banknote; determining a number of objects in the texture decision map by removing texture sections in the texture decision map that correspond to the border sections in the banknote boundary map; calculating a texture property value for each object; calculating a shape property value for each object; and further removing texture sections from the texture decision map corresponding to objects that do not have the texture property value within a first predetermined range and the shape property value within a second predetermined range.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 20, 2008
    Inventors: Xu-Hua Liu, Byung-Tae Oh, Young-Min Kwak, Chung-Chieh KUO, Tzu-Hung Cheng