3D hand profile identification apparatus
AssigneeRecognition Systems, Inc.
InventorDavid P. Sidlauskas
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Abstract
An identification system is disclosed which determines whether the claimed identity of an individual is in fact the true identity. A three dimensional image of a hand is obtained using a digitizing camera and a pair of orthogonal reflecting surfaces. The image is then compared with a previously recorded hand image for the claimed identity. If the images match, within a selectable tolerance, the person is accepted as the correct individual. If they do not match, the person is rejected. Signalling and/or control apparatus responds to the results of the comparison.
Claims8
An identification apparatus comprising:
- means responsive to retro-reflected radiation;
- a pair of orthogonally orientated retro-reflective surfaces in front of which a person's hand may be placed for retro-reflecting incident radiation from a source of radiation which is not interrupted by said hand for projecting a single image comprising a plan and profile view of said person's hand to said retro-reflected radiation responsive means;
- means in said retro-reflected radiation responsive means which is responsive to said image for providing signals corresponding to said plan and profile views;
- means responsive to said signals for providing current measurement data from said plan and profile views;
- means for comparing said current measurement data with data previously stored in a memory;
- and
- means for providing a signal when said current measurement data and said previously stored data match within a predetermined tolerance.
An identification apparatus comprising:
- a source of radiation;
- first and second orthogonally orientated retro-reflective surfaces for reflecting said radiation;
- means for propagating said radiation from said source along a first and a second axis perpendicular to said first and said second surfaces, respectively;
- and
- means responsive to the radiation reflected from each of said surfaces for providing signals corresponding to the intensity of said reflected radiation.
Dependencies are inferred from the claim text.