Polartechnics Limited

David Varvel

Victor N Skladnev

Richard L Thompson

Stephen Rowe

Andrew Batrac

Leanne Bischoff

Peter West

Alex Gutenev

Roger Caffin

Scott Menzies

Hugues Talbot

A system for collecting, storing and displaying dermatological images for the purpose of monitoring and diagnosis of skin conditions and skin cancers, including melanoma. A hand-held unit illuminates a section of the patient's skin, and an imaging device generates imaging signals from light derived from a skin section. Pairs of light output ports in the hand-held unit are arranged such that their intensity distributions overlap at their half-intensity levels so that the resulting summation of their intensities has a flat central region. Three image stores are maintained, one for lesion images, one for 'nearby skin' images, and one for reference-white images. The 'nearby skin' images are used by the system software to automatically determine the skin/lesion border. The reference white images are used to set the dynamic range of the instrument and to compensate for lighting irregularities. Two images of the same lesion taken at different times may be displayed simultaneously so that changes in the lesion may be determined. The calibration system is designed so that image data taken on any of multiple machines built to the same specification will be corrected back to a common reference standard to ensure absolute accuracy in colour rendition.

System and method for examining, recording and analyzing dermatological conditions

Growing community of inventors

Cherrybrook, Australia

David Varvel