2. Authentication based on the physiological or behavioral
characteristics of people
It is a pattern recognition system at establishes a
person’s identity by comparison of data .
It’s authentication is "automatic", "real-time", "non-
forensic" subset of the broader field of human
identification.
3. Biometric systems:
o Verification
o Identification
Biometric devices:
o Positive Identification
o Negative Identification
5. It aims to discriminate individuals by the way they
walk
It is unobtrusive.
It depends on how the silhouette shape of an individual
changes over time in an image sequence
6.
7.
8. Silhouette Representation
2D silhouettes are changed
into an associated sequence
of 1D signals
di=((xi-xc)2+(yi-yc)2)1/2
9.
10. Subject to the effects of different types of
clothes.
Lack of generality of viewing angles.