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:
Aug. 13, 2013
Filed:
Nov. 18, 2010
Pascal Gautron, Cesson Sevigne Cedex, FR;
Jean-eudes Marvie, Cesson Sevigne Cedex, FR;
Cyril Delalandre, Cesson Sevigne Cedex, FR;
Pascal Gautron, Cesson Sevigne Cedex, FR;
Jean-Eudes Marvie, Cesson Sevigne Cedex, FR;
Cyril Delalandre, Cesson Sevigne Cedex, FR;
Thomson Licensing, Issy les Moulineaux, FR;
Abstract
The invention relates to a method for estimating the quantity of light scattered by a heterogeneous participating media. In order to optimise the display while minimising the required calculation time, the method comprises steps for selecting at least one level of spatial subdivision of said media from among a plurality of hierarchic levels of spatial subdivision according to at least one item of error information representative of an attenuation difference in said media according to at least one direction between two consecutive hierarchic levels, and estimating the quantity of light scattered by sampling of said media along at least one scattering direction, the sampling being a function of at least one selected spatial subdivision level.