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. 15, 2008
Filed:
Apr. 07, 2004
Byungjo Jung, Irvine, CA (US);
Bernard Choi, Huntington Beach, CA (US);
Anthony J. Durkin, Costa Mesa, CA (US);
J. Stuart Nelson, Laguna Niguel, CA (US);
Byungjo Jung, Irvine, CA (US);
Bernard Choi, Huntington Beach, CA (US);
Anthony J. Durkin, Costa Mesa, CA (US);
J. Stuart Nelson, Laguna Niguel, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
A digital imaging system provides color information of an entire port wine stain or other skin condition with a single image in CIE L*a*b* color space (L*, a*) derived from RGB pixel data (R, G, B). Cross-polarization optics produce marked reduction in specularly reflected light in the images. A patient positioning device allows for repeatable positioning of the patient's head or body portion. The digital nature of the system provides a near real-time mapping of melanin and erythema or other skin chromophore metrics. The cross-polarized diffuse reflectance color digital imaging system obtains subsurface skin color information and acquisition of facial images in a reproducible fashion at a fixed distance from an illumination source at optimized angles of view depending on the region of interest being imaged.