Effects of curvature and view angle on quantitative imaging of erythema and melanin content in facial port wine stain skin

Byungjo Jung; Bernard Choi; Yongjin Shin; Anthony Joseph Durkin; J. Stuart Nelson

doi:10.1117/12.528069

13 July 2004 Effects of curvature and view angle on quantitative imaging of erythema and melanin content in facial port wine stain skin

Byungjo Jung, Bernard Choi, Yongjin Shin, Anthony Joseph Durkin, J. Stuart Nelson

Author Affiliations +

Proceedings Volume 5312, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIV; (2004) https://doi.org/10.1117/12.528069
Event: Biomedical Optics 2004, 2004, San Jose, CA, United States

Abstract

In cutaneous vascular laser surgery, hemoglobin and melanin are important skin chromophores that influence treatment of port wine stain (PWS) birthmarks. A potential problem in quantitative chromorphore evaluaton is the error in image analysis associated with a number of factors, including nonuniform illumination and skin curvature. In this study, we used a mannequin head model to investigate how the accuracy of image analysis is influenced by view angle and facial curvature. Our results indicate that view angle and facial curvature affect the accuracy of the recorded color information. From this analysis, we propose that optimal view angles can be determined on an individual patient basis to analyze features on different regions of the face.

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Byungjo Jung, Bernard Choi, Yongjin Shin, Anthony Joseph Durkin, and J. Stuart Nelson "Effects of curvature and view angle on quantitative imaging of erythema and melanin content in facial port wine stain skin", Proc. SPIE 5312, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIV, (13 July 2004); https://doi.org/10.1117/12.528069

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KEYWORDS

Head

Skin

RGB color model

Imaging systems

Diffuse reflectance spectroscopy

Reflectivity

Cameras

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