Method of detecting anomalies of the skin, more particularly mel

Details Method of detecting anomalies of the skin, more particularly mel Method of detecting anomalies of the skin, more particularly mel

1991-08-14

1994-11-15

Sykes, Angela D.

Surgery

Truss

Pad

356390, A61B 600

Patent

active

053638549

ABSTRACT:
An apparatus for detecting anomalies of the skin, more particularly melanomae, includes a light source for illuminating a two-dimensionally extending examination region of the skin, successively, with ultraviolet light range and with visible light. A camera records a fluorescence picture of the examination region having signal values F(x,y) at its picture points x,y in response to the illumination with ultraviolet light and a reference picture having signal values R(x,y) at its picture points x,y in response to the illumination with visible light. A memory stores the signal values of at least one of the fluorescence picture and said reference picture, and a processor responsive to the memory produces an output picture having respective signal values A(x,y) at its picture points x,y which are formed from respective quotients F(x,y)/R(x,y) of the signal values of the fluorescence and reference pictures at the same picture points. Various filters are provided positioned or positionable between the light source and the examination region or in front of the camera.

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patent: 5003977 (1991-04-01), Suzuki et al.
patent: 5097135 (1992-03-01), Mikano et al.

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