1 July 1998 Polarized video imaging of skin
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Proceedings Volume 3245, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VIII; (1998) https://doi.org/10.1117/12.312307
Event: BiOS '98 International Biomedical Optics Symposium, 1998, San Jose, CA, United States
Abstract
A method for imaging the superficial epidermal and papillary dermal layers of the skin is needed when assessing many skin lesions. We have developed an imaging modality using a video camera whose mechanism of contrast is the reflectance of polarized light from superficial skin. By selecting only polarized light to create the image, one rejects the 95% of diffusely reflected light from the deeper dermis. The specular reflectance (or glare) from the skin surface is also avoided in the setup. The resulting polarization picture maximally accents the details of the superficial layer of the skin and removes the effects of melanin pigmentation from the image. Fore example, freckles simply disappear and nevi lose their dark pigmentation to revel the details of abnormal cellular growth. An initial clinical study demonstrated that the polarization camera could identify the margins of sclerosing basal cell carcinoma while the eye of the doctor underestimated the margin estimate. The camera identified an 11-mm-diameter lesion while the unaided eye identified a 6-mm- diameter lesion.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Steven L. Jacques, Kenneth Lee, "Polarized video imaging of skin", Proc. SPIE 3245, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VIII, (1 July 1998); doi: 10.1117/12.312307; https://doi.org/10.1117/12.312307
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