Title:
Handheld Erythema and Bruise Detector
Handheld Erythema and Bruise Detector
Author(s)
Kong, Linghua
Sprigle, Stephen
Duckworth, Mark G.
Yi, Dingrong
Caspall, Jayme J.
Wang, Jiwu
Zhao, Futing
Sprigle, Stephen
Duckworth, Mark G.
Yi, Dingrong
Caspall, Jayme J.
Wang, Jiwu
Zhao, Futing
Advisor(s)
Editor(s)
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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.
Sponsor
Date Issued
2008
Extent
Resource Type
Text
Resource Subtype
Proceedings
Post-print
Post-print