"Dermoscopy images of skin lesions are often acquired by covering the skin with mineral oil, alcohol, another liquid or a gel and illuminating the area at a low angle of incidence from all directions before taking the photograph. Deeper pigment patterns are more visible in this type of image than in a clinical image because the liquid immersion and structured light effectively make the upper layers of the skin more transparent. Flash regions are the small, high reflectance areas in the image where direct reflections of the illumination source(s) cause undesirable bright spots in the image. These flash regions may be due to reflections from liquid trapped in the rough textured areas of the lesion or to reflections from bubbles in the liquid. This research focuses on the research and evaluation of algorithms to detect and remove high reflectance regions characteristic of flash"--Abstract, page iii.
Moss, Randy Hays, 1953-
Stanley, R. Joe
Stoecker, William V.
Electrical and Computer Engineering
M.S. in Electrical Engineering
University of Missouri--Rolla
x, 91 pages
© 2007 Radhika Nagane, All rights reserved.
Thesis - Open Access
Library of Congress Subject Headings
Skin -- Cancer -- Diagnosis
Skin -- Microscopy
Microscopy -- Technique
Print OCLC #
Electronic OCLC #
Link to Catalog Recordhttp://laurel.lso.missouri.edu/record=b6400749~S5
Nagane, Radhika, "Detection of flash in dermoscopy skin lesion images" (2007). Masters Theses. 5505.