Patents by Inventor Francis Kapo Tse

Francis Kapo Tse 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: 7561747
    Abstract: The image data processing system and method disclosed, processes intermediate compressed binary data representing images scanned for copy or exporting, thereby enabling storage of the copy or export file to a common memory storage device. According to an exemplary embodiment, the image data processing system comprises a binary lossless decompress module, a binary to contone restoration module, and an export processing module, the export processing module processing multiple bit image data for exporting to an image data receiving device.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: July 14, 2009
    Assignee: Xerox Corporation
    Inventors: Francis Kapo Tse, Ramesh Nagarajan, James Russell, Chia-Hao Lee, John W. Wu
  • Patent number: 7421147
    Abstract: Training sets consisting of pairs of input images and desired images can be used to produce maps intended for future use in transforming input images into final images. The maps, however, often have improper elements based on incomplete or noisy data. The noisy data and incomplete can be identified via statistics derived from the training set. The map can output a code value instead of a substitution for an improper element. An additional stage of image transformation can identify improper pixels having the code value and replace the code value with an analytic value that is more appropriate.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: September 2, 2008
    Assignee: Xerox Corporation
    Inventors: Ramesh Nagarajan, Chia-Hao Lee, Francis Kapo Tse
  • Patent number: 7352490
    Abstract: A method and system to convert an electronic image file described in a page description language containing both contone and non-contone image objects to an intermediate binary format image. The intermediate format image separately encodes the contone and non-contone image objects. The contone image objects are edge-tagged. Prior to printing, the intermediate binary format page image is separated into the contone and non-contone image objects. The contone image objects are converted back to a contone form using the edge tagging to modify the filter weights of a digital filter. The non-contone image objects are converted to contone form by means of a pattern matching scheme.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: April 1, 2008
    Assignee: Xerox Corporation
    Inventors: Francis Kapo Tse, Ramesh Nagarajan, James P. Russell
  • Publication number: 20080049238
    Abstract: A method and system for processing an image in a digital reprographic system that performs a first segmentation process upon a contone digital image to identify one of a plurality of image data types for each pixel in the contone digital image, generating tags, binarizing the contone digital image and storing the binary image as an intermediate format. This binary image is later reconstructed to generate a reconstructed contone digital image; and performing a second segmentation process upon the reconstructed contone digital image to identify areas of the reconstructed contone digital image with common image data types.
    Type: Application
    Filed: August 28, 2006
    Publication date: February 28, 2008
    Applicant: Xerox Corporation
    Inventors: Ramesh Nagarajan, Xing Li, Peter D. McCandlish, Francis Kapo Tse
  • Publication number: 20080037044
    Abstract: One embodiment is a method for suppressing background inaccuracies in binary to grayscale image conversion. A binary image is converted to a grayscale image using a neighbor map. An image enhancement function is applied to the grayscale image to supress background inaccuracies in the grayscale image. Another embodiment is method for converting a binary pixel of a binary image to a grayscale pixel of a grayscale image and suppressing noise in the grayscale image using selective filtering of the binary image. Another embodiment is a method for converting a binary image to a first grayscale image and suppressing noise in the first grayscale image to produce a noise suppressed grayscale image using selective filtering of the grayscale image.
    Type: Application
    Filed: August 8, 2006
    Publication date: February 14, 2008
    Applicant: Xerox Corporation
    Inventors: Francis Kapo Tse, Ramesh Nagarajan, John Christopher Cassidy, Chia-Hao Lee, John W. Wu