Patents by Inventor Navid Serrano

Navid Serrano 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).

  • Calculating noise estimates of a digital image using gradient analysis
    Patent number: 7092579
    Abstract: A method of estimating the noise in a digital image for use in subsequent image processing, includes receiving a source digital image having a plurality of pixels; selecting a pixel of interest; providing a plurality of orientations for the pixel of interest; using gradient analysis on the source digital image and the plurality of orientations to select the most suitable orientation for estimating noise for the pixel of interest; using the selected orientation in the pixel of interest to determine a noise-free pixel estimate for the pixel of interest; and repeating for other pixels of interest and using the noise-free pixel estimates to calculate a noise characteristic value representing the noise estimate for the source digital image.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: August 15, 2006
    Assignee: Eastman Kodak Company
    Inventors: Navid Serrano, Edward B. Gindele
  • Estimating noise for a digital image utilizing updated statistics
    Patent number: 7054501
    Abstract: A method of estimating noise in a digital image receiving a digital image; providing a first statistical table related to noise provided by an image source; and using the pixels of the digital image to calculate a second statistical table related to the noise provided by the image source in capturing the image. The method further includes using the first statistical table and the second statistical table to provide an updated third statistical table related to the noise provided by the image source in capturing the image; and calculating a noise characteristic table from the third statistical table for use in enhancing the digital image.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: May 30, 2006
    Assignee: Eastman Kodak Company
    Inventors: Edward B. Gindele, Navid Serrano
  • Calculating noise from multiple digital images having a common noise source
    Patent number: 6934421
    Abstract: A method for estimating a noise characteristic value for a plurality of digital images that are affected by a common noise source includes receiving a plurality of source digital images that are affected by a common noise source, each source digital image including a plurality of pixels; calculating a total number of pixels included in the source digital images; and receiving a predetermined target number of noise estimates to be calculated for the source digital images. The method also includes using the total number of pixels and the predetermined target number of noise estimates to calculate one or more pixel sampling parameters for the source digital images; using the source digital images and the one or more pixel sampling parameters to calculate a predetermined number of noise estimates; and using the noise estimates to calculate a noise characteristic value for the source digital images.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: August 23, 2005
    Assignee: Eastman Kodak Company
    Inventors: Edward B. Gindele, Navid Serrano, Jeffrey C. Snyder
  • Method of spatially filtering digital image for noise removal, noise estimation or digital image enhancement
    Patent number: 6931160
    Abstract: A method of spatially filtering a digital image includes receiving a source digital image including pixels corresponding to one or more different colors; selecting a pixel of interest in the source digital image; calculating two or more noise free pixel estimates for the pixel of interest using pixel values sampled in a local region about the pixel of interest; selecting a final noise free pixel estimate for the pixel of interest from the noise free pixel estimates; and repeating for other pixels in the source digital image to provide a spatially filtered digital image.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: August 16, 2005
    Assignee: Eastman Kodak Company
    Inventors: Edward B. Gindele, Navid Serrano
  • Method of calculating noise from a digital image utilizing color cross correlation statistics
    Patent number: 6804393
    Abstract: A method of calculating a noise characteristic value for a source digital image includes receiving a source digital image including pixels corresponding to two or more different colors; using pixel values corresponding to a first color to produce at least one color correlation term for pixels corresponding to a second color which respectively indicate the extent of the noise content in the pixel values of the second color; and using the color correlation term to calculate a noise characteristic value for the pixels corresponding to the second color.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: October 12, 2004
    Assignee: Eastman Kodak Company
    Inventors: Edward B. Gindele, Navid Serrano
  • Calculating noise estimates of a digital image using gradient analysis
    Publication number: 20030215155
    Abstract: A method of estimating the noise in a digital image for use in subsequent image processing, includes receiving a source digital image having a plurality of pixels; selecting a pixel of interest; providing a plurality of orientations for the pixel of interest; using gradient analysis on the source digital image and the plurality of orientations to select the most suitable orientation for estimating noise for the pixel of interest; using the selected orientation in the pixel of interest to determine a noise-free pixel estimate for the pixel of interest; and repeating for other pixels of interest and using the noise-free pixel estimates to calculate a noise characteristic value representing the noise estimate for the source digital image.
    Type: Application
    Filed: May 20, 2002
    Publication date: November 20, 2003
    Applicant: Eastman Kodak Company
    Inventors: Navid Serrano, Edward B. Gindele
  • Calculating noise from multiple digital images having a common noise source
    Publication number: 20030179944
    Abstract: A method for estimating a noise characteristic value for a plurality of digital images that are affected by a common noise source includes receiving a plurality of source digital images that are affected by a common noise source, each source digital image including a plurality of pixels; calculating a total number of pixels included in the source digital images; and receiving a predetermined target number of noise estimates to be calculated for the source digital images. The method also includes using the total number of pixels and the predetermined target number of noise estimates to calculate one or more pixel sampling parameters for the source digital images; using the source digital images and the one or more pixel sampling parameters to calculate a predetermined number of noise estimates; and using the noise estimates to calculate a noise characteristic value for the source digital images.
    Type: Application
    Filed: March 20, 2002
    Publication date: September 25, 2003
    Applicant: Eastman Kodak Company
    Inventors: Edward B. Gindele, Navid Serrano, Jeffrey C. Snyder
  • Method of spatially filtering digital image for noise removal, noise estimatation or digital image enhancement
    Publication number: 20030095716
    Abstract: A method of spatially filtering a digital image includes receiving a source digital image including pixels corresponding to one or more different colors; selecting a pixel of interest in the source digital image; calculating two or more noise free pixel estimates for the pixel of interest using pixel values sampled in a local region about the pixel of interest; selecting a final noise free pixel estimate for the pixel of interest from the noise free pixel estimates; and repeating for other pixels in the source digital image to provide a spatially filtered digital image.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 22, 2003
    Applicant: Eastman Kodak Company
    Inventors: Edward B. Gindele, Navid Serrano
  • Method of calculating noise from multiple digital images utilizing common noise characteristics
    Publication number: 20020126910
    Abstract: A method of enhancing one or more digital images from a plurality of digital images that are believed to be affected by a common noise source includes receiving two or more source digital images that are believed to be affected by a common noise source; using the pixels of the received source digital images to calculate a noise characteristic value that relates to the noise present in the received source digital images; and using the noise characteristic value and the received source digital images to respectively calculate enhanced digital images for the one or more of the received source digital images.
    Type: Application
    Filed: January 2, 2001
    Publication date: September 12, 2002
    Applicant: Eastman Kodak Company
    Inventors: Edward B. Gindele, Navid Serrano, Andrew Gallagher, Robert T. Gray
  • Method of calculating noise from a digital image utilizing color cross correlation statistics
    Publication number: 20020126911
    Abstract: A method of calculating a noise characteristic value for a source digital image includes receiving a source digital image including pixels corresponding to two or more different colors; using pixel values corresponding to a first color to produce at least one color correlation term for pixels corresponding to a second color which respectively indicate the extent of the noise content in the pixel values of the second color; and using the color correlation term to calculate a noise characteristic value for the pixels corresponding to the second color.
    Type: Application
    Filed: January 2, 2001
    Publication date: September 12, 2002
    Applicant: Eastman Kodak Company
    Inventors: Edward B. Gindele, Navid Serrano