EP 0795248 A2 19970917 - PALM PRINTER
Title (en)
PALM PRINTER
Title (de)
HANDTELLER-ABDRUCKVORRICHTUNG
Title (fr)
RELEVE DE L'EMPREINTE DE LA PAUME
Publication
Application
Priority
- US 9514226 W 19951103
- US 34663994 A 19941130
Abstract (en)
[origin: WO9617480A2] The present invention provides an optical system operable in eliminating parallax distortion in a captured image. Specifically, the apparatus eliminates parallax distortion in a palm print image. The apparatus includes a prism having a receiving surface and an object surface. A palm is placed on the receiving surface and a light illuminates the receiving surface so that an image representative of the palm is propagated from the object surface. The propagated image includes a plurality of segments. A lens selectively magnifies each of the segments by a different amount, as to create a plurality of magnified segments of equal length. A image recording medium then captures the magnified segments. The invention also provides a cylindrical device operable in capturing the image of the palm, where the palm may be rolled across a transparent cylinder and reflected light is captured by a recording medium representative of the palm print.
IPC 1-7
IPC 8 full level
A61B 5/117 (2006.01); G06K 9/00 (2006.01); G06T 1/00 (2006.01); H04N 1/04 (2006.01); H04N 1/393 (2006.01)
CPC (source: EP US)
A61B 5/1171 (2016.02 - EP US); G06V 40/1324 (2022.01 - EP); G06V 40/1335 (2022.01 - EP); H04N 1/393 (2013.01 - EP)
Citation (search report)
See references of WO 9617480A2
Designated contracting state (EPC)
AT DE DK FR GB IT
DOCDB simple family (publication)
WO 9617480 A2 19960606; WO 9617480 A3 19960906; AU 4142596 A 19960619; BR 9509933 A 19991130; CA 2207664 A1 19960606; CN 1167556 A 19971210; EP 0795248 A2 19970917; JP H10510075 A 19980929; MX 9703856 A 19980228; NO 972448 D0 19970529; NO 972448 L 19970725
DOCDB simple family (application)
US 9514226 W 19951103; AU 4142596 A 19951103; BR 9509933 A 19951103; CA 2207664 A 19951103; CN 95196530 A 19951103; EP 95939714 A 19951103; JP 51878995 A 19951103; MX 9703856 A 19951103; NO 972448 A 19970529