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:
Oct. 16, 2001
Filed:
Oct. 15, 1999
Applicant:
Inventors:
Bo Tao, Sunnyvale, CA (US);
Ingeborg Tastl, San Jose, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/222 ; G06K 9/00 ;
U.S. Cl.
CPC ...
H04N 5/222 ; G06K 9/00 ;
Abstract
The apparatus for and method of estimating the illumination closely approximates an illumination of a corresponding image. This apparatus for and method of estimating the illumination utilizes appropriate linear models to represent the illumination spectral power distribution of the illumination and the spectral surface reflectance. The linear model of the illumination spectral power distribution, L(n), is represented by: