Automatic face authorization has long been an active
research area for its wide potential applications, such as law enforcement,
security access, and man-machine interaction. Among various approaches,
Principal Components Analysis (PCA) to face imaging is now a cornerstone in face
recognition. However, 2-D face recognition methods are in general unable to
overcome the problems resulting from illumination, expression or pose
variations. The emerging trend noted by many researchers in the field of face
recognition is the 3-D technology. 3-D method is more accurate and is able to
overcome the problems of 2-D methods, as 3-D information is viewpoint and
lighting condition independent.
Researchers at Arizona State University have developed a
novel approach for 3-D Face Authentication and Recognition Based on Bilateral
Symmetry Analysis that identifies 3-D triangular facial mesh by a 3-D scanner
and extracting unique features for authentication from a database of 3-D face
scans.
This invention utilizes the ready availability of such a
data to provide a system of face authentication and recognition by real-time
scanning of an individuals face in 3-D and instantly matching it in a database
of 3D scans.
Utilizing both the mean curvature plot of the facial surface
and the curvature plot of the symmetry profile curve, three essential points of
the nose on the symmetry profile are automatically extracted. The three
essential points uniquely determine a Face Intrinsic Coordinate System.
Different faces are aligned based on the FICS. The Symmetry Profile, along with
two transversal profiles, namely the Forehead Profile and the Cheek Profile
compose a compact representation, called the SFC representation of a 3-D face
surface. The face authentication and recognition steps are finally performed by
comparing the SFC representation of the faces.
Potential Applications
- Security – Providing accesses to the designated people to
areas of high security.
- ATMS/BANKS – Provide authentication and a validity
measure for secure transactions
- Airports/Immigration – Help governments by storing a
database of current immigrants and identify them alongside
fingerprinting.
Potential Applications
- Security – Providing accesses to the designated people to
areas of high security.
- ATMS/BANKS – Provide authentication and a validity
measure for secure transactions
- Airports/Immigration – Help governments by storing a
database of current immigrants and identify them alongside
fingerprinting.
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