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Proceedings Paper

Polarized light imaging with a handheld camera
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Paper Abstract

Polarized light imaging can facilitate clinical mapping of skin cancer margins and can potentially guide clinical excision. A real-time hand-held polarized-light system was built to image skin lesions in the clinic. The system consisted of two 8-bit CCD cameras (Camera 1 and Camera 2) mounted on the camera assembly and illuminated the patient’s skin. Light was polarized parallel to the source-patient-camera plane. The light, reflected from the patient, was collected with an objective lens mounted on the beam splitter and divided into a horizontal (H) and vertical (V) component. The H component was collected by Camera 1, and the V component was collected by Camera 2. A new image was generated based on the polarization ratio (H - V)(H + V) and displayed. This image was sensitive to the superficial skin layer and some early clinical examples are presented. A web version of this paper is available at the following web site: optics.sgu.ru/SFM/2002/internet/Jessica/.

Paper Details

Date Published: 13 October 2003
PDF: 10 pages
Proc. SPIE 5068, Saratov Fall Meeting 2002: Optical Technologies in Biophysics and Medicine IV, (13 October 2003); doi: 10.1117/12.518788
Show Author Affiliations
Jessica C. Ramella-Roman, Oregon Medical Laser Ctr. (United States)
Oregon Health and Science Univ. (United States)
Kenneth Lee, Oregon Health and Science Univ. (United States)
Scott A. Prahl, Oregon Medical Laser Ctr. (United States)
Oregon Health and Science Univ. (United States)
Steven L. Jacques, Oregon Medical Laser Ctr. (United States)
Oregon Health and Science Univ. (United States)


Published in SPIE Proceedings Vol. 5068:
Saratov Fall Meeting 2002: Optical Technologies in Biophysics and Medicine IV
Valery V. Tuchin, Editor(s)

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