The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1998
Filed:
Jul. 23, 1996
Applicant:
Inventor:
Adam Michael Billyard, London, GB;
Assignee:
Canon Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T / ;
U.S. Cl.
CPC ...
345426 ; 345431 ;
Abstract
Image data representing multi-dimensional objects are processed, wherein the objects are represented by a plurality of polygons. Lighting characteristics for the polygons are calculated in response to data representing light sources and lighting parameters defining coefficients of specular reflection and diffuse reflection. Not all polygons have significant levels of specular reflection. Advantage is taken of this and the apparatus is arranged to process polygons having significant levels of specular reflection in accordance with a first process while processing other polygons in accordance with a second process.