Method and apparatus for characterization of chromophore...

Details Method and apparatus for characterization of chromophore... Method and apparatus for characterization of chromophore...

2008-07-15

2008-07-15

Wu, Jingge (Department: 2624)

Image analysis

Applications

Biomedical applications

C348S077000

Reexamination Certificate

active

07400754

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.

REFERENCES:
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patent: 6081612 (2000-06-01), Gutkowicz-Krusin et al.
patent: 6215893 (2001-04-01), Leshem et al.
patent: 6587539 (2003-07-01), Oikawa
patent: 2001/0033364 (2001-10-01), Cabib et al.

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