Patents by Inventor Keith Ralph Jeffery

Keith Ralph Jeffery 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).

  • Firefly detection using a plurality of buffers
    Patent number: 10755387
    Abstract: A method for determining whether a pixel of a computer-rendered image is a firefly includes: dividing a plurality of samples originating from the pixel, into first and second subsets; identifying whether the pixel is an outlier based on variance data of the first subset; identifying whether the pixel is an outlier based on variance data of the second subset. The pixel is determined as not a firefly in response to both the pixel being identified as an outlier based on the variance data of the first subset, and the pixel being identified as an outlier based on the variance data of the second subset. The pixel is determined as a firefly in response to the pixel being not identified as an outlier based on the variance data of the first (second) subset and being identified as an outlier based on the variance data of the second (first) subset.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: August 25, 2020
    Assignee: DreamWorks Animation LLC
    Inventor: Keith Ralph Jeffery
  • FIREFLY DETECTION USING A PLURALITY OF BUFFERS
    Publication number: 20200051216
    Abstract: A method for determining whether a pixel of a computer-rendered image is a firefly includes: dividing a plurality of samples originating from the pixel, into first and second subsets; identifying whether the pixel is an outlier based on variance data of the first subset; identifying whether the pixel is an outlier based on variance data of the second subset. The pixel is determined as not a firefly in response to both the pixel being identified as an outlier based on the variance data of the first subset, and the pixel being identified as an outlier based on the variance data of the second subset. The pixel is determined as a firefly in response to the pixel being not identified as an outlier based on the variance data of the first (second) subset and being identified as an outlier based on the variance data of the second (first) subset.
    Type: Application
    Filed: December 31, 2018
    Publication date: February 13, 2020
    Applicant: DreamWorks Animation LLC
    Inventor: Keith Ralph Jeffery