Patents by Inventor Adam M. Billyard

Adam M. Billyard 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).

  • Apparatus and method for performing lighting calculations for surfaces of three-dimensional objects
    Patent number: 5563989
    Abstract: Image data representing multi-dimensional objects are processed by calculating lighting characteristics in response to lighting parameters of surfaces and the parameters of light sources.Surface highlight characteristics are produced by a non-linear process. However, the non-linear process is performed without reference to a view position.Processing highlight characteristics without reference to the view position allows characteristics to be produced without transforming the view position and without calculating additional vectors.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: October 8, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventor: Adam M. Billyard