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. 14, 2015
Filed:
Sep. 27, 2011
Pascal Gautron, Cesson Sevigne Cedex, FR;
Jean-eudes Marvie, Cesson Sevigne Cedex, FR;
Pascal Gautron, Cesson Sevigne Cedex, FR;
Jean-Eudes Marvie, Cesson Sevigne Cedex, FR;
Thomson Licensing, Boulogne, Billancourt, FR;
Abstract
A method for estimation of the quantity of light received at a point P of a virtual environment that comprises several first points lit by a light source, these first points forming a plurality of groups each comprising at least one first point is disclosed. In order to improve the display while minimizing the required calculation time, the method estimates the quantity of incident light received at point P by estimating a surface including point P grouping at least some of the points of the virtual environment, estimating a first group of points contributing to the lighting of point P by reflection of the incident light received from the light source based on occlusion information associated with the surface including point P and estimating the quantity of incident light received by the first group of point based on reflectance information associated with such group.