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:
May. 25, 1999
Filed:
Nov. 25, 1996
Paul Vlahos, Tarzana, CA (US);
Arpag Dadourian, Northridge, CA (US);
George Sauve, Simi Valley, CA (US);
Ultimatte Corporation, Chatsworth, CA (US);
Abstract
The invention utilizes the fact that anyone with normal color vision has the ability look at a scene on a video display and recognize a black area if one is present; a white area if one is present, and face or flesh areas if a person is present. It is also easy to recognize blond hair, subjects that are opaque, subjects that are semi-transparent, and subjects that are bright green. The aforesaid abilities to recognize luminance and color characteristics of elements within a video scene are used in conjunction with the invention to produce ideal composite images by utilizing of a set of equations that incorporate a knowledge of color science, of video and existing compositing techniques. These equations are used to make adjustment decisions to produce the best possible composite image. The equations are used to compute certain constant values utilized in the existing compositing techniques. The equations are also used to calculate exact values of B, G, R and gamma for balancing blacks, whites, and flesh tones as well as foreground and background video levels.