Patents by Inventor Dean Mathias

Dean Mathias 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).

  • Systems and methods for sensing occupancy
    Patent number: 8831287
    Abstract: A computer implemented method for sensing occupancy of a workspace includes creating a difference image that represents luminance differences of pixels in past and current images of the workspace resulting from motion in the workspace, determining motion occurring in regions of the workspace based on the difference image, and altering a workspace environment based at least in part on the determined motion. The method also includes determining which pixels in the difference image represent persistent motion that can be ignored and determining which pixels representing motion in the difference image are invalid because the pixels are isolated from other pixels representing motion.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: September 9, 2014
    Assignee: Utah State University
    Inventors: Aravind Dasu, Dean Mathias, Chenguang Liu, Randy Christensen, Bruce Christensen
  • Systems and Methods For Sensing Occupancy
    Publication number: 20140093130
    Abstract: A computer implemented method for sensing occupancy of a workspace includes creating a difference image that represents luminance differences of pixels in past and current images of the workspace resulting from motion in the workspace, determining motion occurring in regions of the workspace based on the difference image, and altering a workspace environment based at least in part on the determined motion. The method also includes determining which pixels in the difference image represent persistent motion that can be ignored and determining which pixels representing motion in the difference image are invalid because the pixels are isolated from other pixels representing motion.
    Type: Application
    Filed: June 8, 2012
    Publication date: April 3, 2014
    Applicant: UTAH STATE UNIVERSITY RESEARCH FOUNDATION
    Inventors: Aravind Dasu, Dean Mathias, Chenguang Liu, Randy Christensen, Bruce Christensen
  • Pallet
    Patent number: D408610
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: April 20, 1999
    Inventor: Dean Mathias