Patents by Inventor Steven Pigeon

Steven Pigeon 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).

  • Compression of partially-masked image data
    Publication number: 20040114820
    Abstract: Wavelet coding of partially-masked image information may be made faster by either of two embodiments of the present invention. In a first embodiment, quick convergence is obtained by performing wavelet encoding in stages, each stage associated with a predetermined wavelet scale. By advancing the stages from finest scale to coarsest scale, coefficients of masked wavelets are identifies early in the coding process. In a second embodiment, quick convergence is obtained by introducing overshoot techniques when masked coefficients are identified, modified and image data is reconstructed therefrom.
    Type: Application
    Filed: November 26, 2003
    Publication date: June 17, 2004
    Inventors: Leon Bottou, Steven Pigeon
  • Compression of partially-masked image data
    Patent number: 6728411
    Abstract: Wavelet coding of partially-masked image information may be made faster by either of two embodiments of the present invention. In a first embodiment, quick convergence is obtained by performing wavelet encoding in stages, each stage associated with a predetermined wavelet scale. By advancing the stages from finest scale to coarsest scale, coefficients of masked wavelets are identifies early in the coding process. In a second embodiment, quick convergence is obtained by introducing overshoot techniques when masked coefficients are identified, modified and image data is reconstructed therefrom.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: April 27, 2004
    Assignee: AT&T Corp.
    Inventors: Leon Bottou, Steven Pigeon
  • Compression of partially-masked image data
    Patent number: 6343154
    Abstract: Wavelet coding of partially-masked image information may be made faster by either of two embodiments of the present invention. In a first embodiment, quick convergence is obtained by performing wavelet encoding in stages, each stage associated with a predetermined wavelet scale. By advancing the stages from finest scale to coarsest scale, coefficients of masked wavelets are identifies early in the coding process. In a second embodiment, quick convergence is obtained by introducing overshoot techniques when masked coefficients are identified, modified and image data is reconstructed therefrom.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: January 29, 2002
    Assignee: AT&T Corp.
    Inventors: Leon Bottou, Steven Pigeon
  • Compression of partially masked still images
    Patent number: 6058214
    Abstract: Wavelet coding of partially-masked image information may be made faster by either of two embodiments of the present invention. In a first embodiment, quick convergence is obtained by performing wavelet encoding in stages, each stage associated with a predetermined wavelet scale. By advancing the stages from finest scale to coarsest scale, coefficients of masked wavelets are identifies early in the coding process. In a second embodiment, quick convergence is obtained by introducing overshoot techniques when masked coefficients are identified, modified and image data is reconstructed therefrom.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: May 2, 2000
    Assignee: AT&T Corp.
    Inventors: Leon Bottou, Steven Pigeon