Patents by Inventor Nicholas P. Costen

Nicholas P. Costen 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).

  • Face sub-space determination
    Patent number: 6876755
    Abstract: A method of determining face sub-spaces includes making initial estimates of the sub-spaces, for example lighting, pose, identity and expression, using Principle Component Analysis on appropriate groups of faces. An iterative algorithm is applied to image codings to maximize the probability of coding across these non-orthogonal sub-spaces, obtaining the projection on each sub-space, and recalculating the spaces.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: April 5, 2005
    Assignee: The University of Manchester
    Inventors: Christopher J. Taylor, Timothy F. Cootes, Gareth Edwards, Nicholas P. Costen