Multispectral liveness determination
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 26, 2009
Grant Date -
Dec 1, 2005
app pub date -
Apr 25, 2005
filing date -
Jun 1, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Methods and systems are provided for determining a liveness state of purported tissue. The purported tissue is illuminated under a plurality of distinct optical conditions during a single illumination session. Light scattered from the purported tissue is received separately for each of the plurality of distinct optical conditions. A multispectral image of the purported tissue is derived from the received light. It is verified that the derived multispectral image is consistent with living tissue.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully