Facial Scan
Facial Scan is a technology is suited for both authentication and
identification. It is based on the analysis of facial features and
has a few strengths. The most obvious is that it can be easily
integrated in an environment that already uses image acquisition
equipment. It can also be used to “search against static images
such as driver’s license photographs” [5]. In addition, it does not
always require the user’s cooperation to obtain the necessary
data. However, the technology has many drawbacks: The most
obvious drawback is the presence of many variables which
constitute an implementation challenge and which can greatly
reduce the system’s matching rate like a changes in the
environment surrounding the individual, or changes in the
individual’s physiological characteristics. Also, the mere fact
that the individual’s cooperation is not required for gathering the
data (a person’s face might be scanned without his knowledge or
consent) raises many privacy concerns.