Method and Apparatus for Palmprint Identification
A method of palmprint identification includes analyzing an area from an image of a palm to obtain texture data for the skin surface with the area. The texture data is compared to reference information in a database to determine the identity of an individual. An apparatus for capturing an image of a palm includes an enclosure with a window in it, and an image sensor and light source disposed within the enclosure and arranged to capture an image through the window. Protuberances are provided on the surface. The protuberances are arranged to be in known juxtaposition to a hand suitably placed on the window for capture of an image that includes the palm area of the hand.
Patent Number: JP4246154A
Application Number: JP199127958A
Inventor: ICHIKAWA HAJIME
Priority Date: 28 Jan 1991
Priority Number: JP4246154A
Application Date: 28 Jan 1991
Publication Date: 2 Sep 1992
IPC Current: C03B001100 | C03B001108 | C03B004000 | C22C003800 | C22C003812
Assignee Applicant: Olympus Optical Co Ltd
Title: MOLDING DIE FOR OPTICAL ELEMENT
Usefulness: MOLDING DIE FOR OPTICAL ELEMENT
Summary: USE The casting mould has excellent oxidn. resistance, departing performance, minor glass attaching resistance, high mechanical strength and long life
Novelty: Mould for casting optical element comprises iron@, tungsten@, molybdenum@ and dispersed titanium nitride and vanadium carbide for excellent resistance to oxidn.
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電腦系統
09.05.2005
2004-538660
4246154
ZHANG David
IP-061
日本
