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:
Nov. 27, 2012
Filed:
Mar. 29, 2010
Dana S. Smith, Dana Point, CA (US);
Dana S. Smith, Dana Point, CA (US);
Sharp Laboratories of America, Inc., Camas, WA (US);
Abstract
A system and method are provided for color gradient object tracking. A tracking area is illuminated with a chromatic light source. A color value is measured, defined by at least three attributes, reflected from an object in the tracking area, and analyzed with respect to chromatic light source characteristics. A lookup table (LUT) is accessed that cross-references color values to positions in the tracking area, and in response to accessing the LUT, the object position in the tracking area is determined. The LUT is initially built by illuminating the tracking area with the light source. A test object is inserted into the tracking area in a plurality of determined positions, and the reflected color value is measured at each determined position. The color value measurements are correlated to determined positions. As a result, a color gradient can be measured between a first determined position and a second determined position.