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RESEARCH PRODUCT

A device for multimodal imaging of skin

Janis ZaharansEriks ZaharansLiene ElsteValerijs GarancisJānis SpigulisUldis Rubins

subject

Multimodal imagingCMOS sensorMaterials sciencebusiness.industryPolarizing filterlaw.inventionLED lampAutofluorescenceNarrowbandOpticslawMedical imagingbusinessLight-emitting diode

description

A compact prototype device for diagnostic imaging of skin has been developed and tested. Polarized LED light at several spectral regions is used for illumination, and round skin spot of diameter 30mm is imaged by a CMOS sensor via crossoriented polarizing filter. Four consecutive imaging series are performed: (1) RGB image at white LED illumination for revealing subcutaneous structures; (2) four spectral images at narrowband LED illumination (450nm, 540nm, 660nm, 940nm) for mapping of the main skin chromophores; (3) video-imaging under green LED illumination for mapping of skin blood perfusion; (4) autofluorescence video-imaging under UV (365nm) LED irradiation for mapping of the skin fluorophores. Design details of the device as well as preliminary results of clinical tests are presented.

yearjournalcountryeditionlanguage
2013-03-13SPIE Proceedings
https://doi.org/10.1117/12.2003510