Patents by Inventor Lawrence Shao-Hsien Chen

Lawrence Shao-Hsien Chen 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: 20110110596
    Abstract: Aspects of the present invention relate to systems, methods and devices for detection of text in an image using an initial text classification result and a verification process.
    Type: Application
    Filed: January 17, 2011
    Publication date: May 12, 2011
    Inventors: Toyohisa Matsuda, Richard John Campbell, Lawrence Shao-hsien Chen
  • Publication number: 20110096993
    Abstract: Aspects of the present invention relate to methods and systems for segmenting a digital image into regions. A frequency-of-occurrence of image values may be determined excluding a portion of pixels in a digital image. An image value associated with a peak in the frequency-of-occurrence of image values may be identified and associated with an image label. Pixel locations may be labeled based on the associated labels and image values. Additionally, unreliable pixels may be determined and labeled based on the associated labels and image values, and an unreliable pixel may be assigned a label after multiple scan passes of a classification map.
    Type: Application
    Filed: December 30, 2010
    Publication date: April 28, 2011
    Inventors: Richard John Campbell, Toyohisa Matsuda, Lawrence Shao-hsien Chen
  • Patent number: 7876959
    Abstract: Aspects of the present invention relate to systems, methods and devices for detection of text in an image using an initial text classification result and a verification process. In particular, a support region of a candidate text pixel in a text-candidate map may be expanded to produce a revised text-candidate map. Pictorial regions in the image may be discriminated based on an entropy measure using masking and the revised text-candidate map, and the revised text-candidate map may be refined based on the pictorial regions.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: January 25, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Toyohisa Matsuda, Richard John Campbell, Lawrence Shao-hsien Chen
  • Patent number: 7864365
    Abstract: Aspects of the present invention relate to methods and systems for segmenting a digital image into regions. A frequency-of-occurrence of image values may be determined excluding a portion of pixels in a digital image. An image value associated with a peak in the frequency-of-occurrence of image values may be identified and associated with an image label. Pixel locations may be labeled based on the associated labels and image values. Additionally, unreliable pixels may be determined and labeled based on the associated labels and image values.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: January 4, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Richard John Campbell, Toyohisa Matsuda, Lawrence Shao-hsien Chen
  • Patent number: 7835035
    Abstract: A software-controlled method for minimizing color toner use during printing of a color page by a color printer including (a) examining the image data for such a page to identify different pre-selected categories of page-contained image elements, (b) associating, with identified different-categories of such elements, specific, respective, pre-determined color-toner usage rules, and (c) following the associating step, outputting the elements to the printer along with instructions that the printer use, in the printing of such elements, the correct, respectively associated color-toner usage rule(s). From a structural point of view, the invention includes examining structure, associating structure, and output structure designed to perform the basic core methodology steps of the invention.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: November 16, 2010
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Ronnie Neil Patton, Ching-Wei Chang, Richard John Campbell, Lawrence Shao-hsien Chen
  • Publication number: 20100014774
    Abstract: Aspects of the present invention are related to systems and methods for automatically determining the content boundaries in a digital image.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 21, 2010
    Inventors: Lawrence Shao-hsien Chen, John E. Dolan
  • Publication number: 20090180694
    Abstract: A method and apparatus for determining an orientation of a document including Korean text are presented. A binarized pixel image is created from the document image. Contiguous pixels are grouped and labeled using a bounding box. A spanning stroke may be detected from a group of the contiguous pixels. The orientation of the document is determined by comparing counts associated with spanning strokes in the left, right, top, and bottom halves of the bounding boxes.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 16, 2009
    Applicant: SHARP LABORATORIES OF AMERICA, INC.
    Inventor: Lawrence Shao-Hsien Chen
  • Publication number: 20080205753
    Abstract: Embodiments of the present invention comprise systems and methods for refining text-detection results for a digital image.
    Type: Application
    Filed: February 27, 2007
    Publication date: August 28, 2008
    Inventors: Lawrence Shao-hsien Chen, Jon M. Speigle, Ahmet Mufit Ferman, Richard John Campbell
  • Publication number: 20080170247
    Abstract: A software-controlled method for minimizing color toner use during copying of a color page by a color copier including (a) examining such a page to identify different pre-selected categories of page-contained image elements, (b) associating, with identified different-categories of such elements, specific, respective, pre-determined color-toner usage rules, and (c) following the associating step, outputting the elements to the copier along with instructions that the copier use, in the copying of such elements, the correct, respectively associated color-toner usage rule(s). From a structural point of view, the invention includes examining structure, associating structure, and output structure designed to perform the basic core methodology steps of the invention.
    Type: Application
    Filed: January 16, 2007
    Publication date: July 17, 2008
    Inventors: Ronnie Neil Patton, Ching-Wei Chang, Richard John Campbell, Lawrence Shao-hsien Chen
  • Publication number: 20080170246
    Abstract: A software-controlled method for minimizing color toner use during printing of a color page by a color printer including (a) examining the image data for such a page to identify different pre-selected categories of page-contained image elements, (b) associating, with identified different-categories of such elements, specific, respective, pre-determined color-toner usage rules, and (c) following the associating step, outputting the elements to the printer along with instructions that the printer use, in the printing of such elements, the correct, respectively associated color-toner usage rule(s). From a structural point of view, the invention includes examining structure, associating structure, and output structure designed to perform the basic core methodology steps of the invention.
    Type: Application
    Filed: January 16, 2007
    Publication date: July 17, 2008
    Inventors: Ronnie Neil Patton, Ching-Wei Chang, Richard John Campbell, Lawrence Shao-hsien Chen
  • Publication number: 20080056573
    Abstract: Embodiments of the present invention comprise systems, methods and devices for detection of text in an image using an initial text classification result and a verification process.
    Type: Application
    Filed: September 6, 2006
    Publication date: March 6, 2008
    Inventors: Toyohisa Matsuda, Richard John Campbell, Lawrence Shao-hsien Chen
  • Publication number: 20070291120
    Abstract: Embodiments of the present invention comprise methods and systems for identifying uniformly colored regions in a digital image.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 20, 2007
    Inventors: Richard John Campbell, Toyohisa Matsuda, Lawrence Shao-hsien Chen
  • Publication number: 20070291288
    Abstract: Embodiments of the present invention comprise methods and systems for segmenting a digital image into regions.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 20, 2007
    Inventors: Richard John Campbell, Toyohisa Matsuda, Lawrence Shao-Hsien Chen
  • Publication number: 20070206857
    Abstract: Embodiments of the present invention comprise systems, methods and devices for detection of pictorial regions in an image using a masking condition, an entropy measure, and region growing.
    Type: Application
    Filed: June 15, 2006
    Publication date: September 6, 2007
    Inventors: Richard John Campbell, Ahmet Mufit Ferman, Toyohisa Matsuda, Lawrence Shao-hsien Chen
  • Patent number: 6304264
    Abstract: An animation wireframe is modified with three-dimensional (3D) range data having a corresponding shape surface. The animation wireframe is scaled in a first direction based on distances between feature pair within the 3D range data and corresponding distances within the generic animation wireframe. The location of a first animation wireframe point is adjusted in a second direction to coincide with a point on the shape surface.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: October 16, 2001
    Assignee: AT&T Corp.
    Inventors: Lawrence Shao-Hsien Chen, Joern Ostermann
  • Patent number: 5969721
    Abstract: An animation wireframe is modified with three-dimensional (3D) range and color data having a corresponding shape surface. The animation wireframe is vertically scaled based on distances between consecutive features within the 3D range and color data and corresponding distances within the generic animation wireframe. For each animation wireframe point, the location of the animation wireframe point is adjusted to coincide with a point on the shape surface. The shape surface point lies along a scaling line connecting the animation wireframe point, the shape surface point and an origin point. The scaling line is within a horizontal plane.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: October 19, 1999
    Assignee: AT&T Corp.
    Inventors: Lawrence Shao-Hsien Chen, Joern Ostermann