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Proceedings Paper

Handheld erythema and bruise detector
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Paper Abstract

Visual inspection of intact skin is commonly used when assessing persons for pressure ulcers and bruises. Melanin masks skin discoloration hindering visual inspection in people with darkly pigmented skin. The objective of the project is to develop a point of care technology capable of detecting erythema and bruises in persons with darkly pigmented skin. Two significant hardware components, a color filter array and illumination system have been developed and tested. The color filter array targets four defined wavelengths and has been designed to fit onto a CMOS sensor. The crafting process generates a multilayer film on a glass substrate using vacuum ion beam splitter and lithographic techniques. The illumination system is based upon LEDs and targets these same pre-defined wavelengths. Together, these components are being used to create a small, handheld multispectral imaging device. Compared to other multi spectral technologies (multi prisms, optical-acoustic crystal and others), the design provides simple, low cost instrumentation that has many potential multi spectral imaging applications which require a handheld detector.

Paper Details

Date Published: 17 March 2008
PDF: 7 pages
Proc. SPIE 6915, Medical Imaging 2008: Computer-Aided Diagnosis, 69153K (17 March 2008); doi: 10.1117/12.770718
Show Author Affiliations
Linghua Kong, Georgia Institute of Technology (United States)
Stephen Sprigle, Georgia Institute of Technology (United States)
Mark G. Duckworth, Georgia Institute of Technology (United States)
Dingrong Yi, Georgia Institute of Technology (United States)
Jayme J. Caspall, Georgia Institute of Technology (United States)
Jiwu Wang, Beijing Bodian Optical Technology Co., Ltd. (China)
Futing Zhao, Beijing Bodian Optical Technology Co., Ltd. (China)


Published in SPIE Proceedings Vol. 6915:
Medical Imaging 2008: Computer-Aided Diagnosis
Maryellen L. Giger; Nico Karssemeijer, Editor(s)

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