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Face
recognition
for enhanced
security.
Cognitec Systems - the face recognition company
FaceVACS®: Face Recognition Technology
FaceVACS
®
Face Recognition Technology
Cognitec’s patented FaceVACS® tech-
FaceVACS® technology handles pose,
Performance, i.e. the accuracy and
nology has been developed and
mimic, aging variance as well as vari-
reliability of the recognition engine, is
refined since 1995. Actually, it has
ances coming from a new hairdo,
key to the quality of face recog-nition
been proven that FaceVACS® techno-
glasses or temporary lighting changes.
systems. The Face Recognition Vendor
logy is best in class.
The independency can never be 100%
Test 2002 (www.frvt.org) initiated by
based on the nature of biometrics,
the US Government has tested systems
The FaceVACS® technology has been
however algorithmic leadership, opti-
of 10 vendors (including Cognitec) in
made to safely recognize persons
mizing and fine tuning over a very
one of the largest evaluations perfor-
independent of variances that appear
long period caused the best of class
med so far. Results published in
to human faces.
variance independency, i.e. caused the
March 2003 have confirmed the in-
excellent verification and identifica-
dustry-leading performance of our
tion results.
FaceVACS® technology.
Any kind of image data source is used for input,
it is either a still image,a video stream
or a connection to a face image database.
Face Finder
Normalization: Based on the found face and
eyes positions, the image is scaled, rotated and
finally presented at fixed size.
Preprocessing: Standard techniques applied like
histogram equalization, intensity normalization.
The images are analyzed to determine the position
and size of one or more faces. The eyes centers are
located and marked. Images including eyes positions are taken as Primary Facial Data.
Preprocessor
Feature extraction
Characteristics of the face are extracted and
represented as a vector in n-dimensional space,
where similarity of faces is the distance of two
vectors. The vectors represent the Secondary Facial
Data and are used for fast comparisons.
Comparison
Secondary Facial Data can be stored in a central
database or on a token storage device,
like a smartcard.
RESULT
IDENTIFICATION MODE: The presented data is used to scan a database for
most similar faces. The most similar reference data is taken as an evidence of
the person's identity.
In case the Secondary Facial Data is stored on a
smartcard, only verification is possible.
VERIFICATION MODE: The presented facial data is compared to data read from
the database or token. Based on the similarity threshold the identity is
confirmed.
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FaceVacs®-SDK: Software Development Kit for integrators
FaceVACS -SDK
®
Software Development Kit for integrators
Main features:
Applications
. Based on the proven FaceVACS®
Applications for face recognition
face recognition technology
. State of the art face recognition
technology can be found in many
government and industry areas be-
API for easy integration of
cause this technology is the most
biometric technology into a broad
convenient and natural way of
range of applications
recognizing people, and at the same
. Support for biometric operations:
time it is one of the most reliable bio-
Cognitec's Face Recognition SDK
enrollment, verification and
metric methods. FaceVACS®-SDK allows
delivers face recognition to a broad
identifications from image streams
the integration of this technology into
range of applications and allows to
(live video) and image collections
devices and software systems wherever
(image databases)
authentication or identification of
use this innovative technology
as a biometric authentication model.
. C++ interface to support modern
FaceVACS®-SDK uses modern tech-
paradigms of software develop-
Cognitec provides complete solutions
niques of programming with
ment
for physical access control, time &
consistent, logically clear programming interfaces. It covers the basic
functions (use cases) of Enrollment,
Verification, Identification and defines
abstractions to support user defined
applications. Additionally, FaceVACS®-
. Abstract interfaces to support
persons is required.
attendance, border control, database
easy adaptation to various video
scanning, and video surveillance, des-
streaming hardware and databases
cribed on the following pages.
. Detailed documentation including
API reference and user guide
. Fully documented examples
Examples of other application areas
include access to computers, networks, and software systems; access to
SDK supports the finding of human
illustrating the main use cases and
mobile devices; check-in and boarding
faces and eyes in images.
providing hints how to create
at airports; access to self-service
customized implementations
terminals like ATM’s; etc. Some of
. Suite of tools to perform biometric
evaluations on data residing in
these applications are being developed
by our partners using FaceVACS®-SDK.
SQL databases: e.g. generation of
identification match lists and
similarity matrix data.
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FaceVacs®-Entry: Edition Access Control
FaceVACS - Entry
®
Edition Access Control
FaceVACS®-Entry adds face recognition
to conventional access control systems.
At the access point, the face of every
person is captured by a video camera,
the facial features are extracted and
compared with the stored features.
Only if they match, access is permitted.
For high security areas, a combination
with card terminals is possible, so that
each card can only be used by its
owner. Flexible communication interfaces enable easy integration into
existing access control or time &
attendance systems. Terminals with
FaceVACS®-Entry can be networked
together, so that after central enrolment, the face data are distributed
automatically to all terminals.
In addition, visual control by security
personnel is supported. All facial images
taken by the terminal can be stored in
Main features:
. Based on the proven FaceVACS®
face recognition technology
. Recognition time of less than
a second
. Easy integration into existing
access control systems
. Combination with card readers,
keypads, and cameras of many
manufacturers
. Modular software architecture
allows distribution of functions
within the network
. Visual control is possible at
predefined events
. Online and offline enrolment
. Logging of events including facial
images
. “Live check“ for high fraud
protection.
a log for later visual inspection via a
standard browser.
4
FaceVacs®-Entry: Edition Border Control
FaceVACS - Entry
®
Edition Border Control
The capabilities of FaceVACS®-Entry
allow to apply the software to border
control systems as well. There is a fast
increasing demand from immigration
and customs organizations to automate the border control process,
at the same time ensuring secure
checking of travel documents, and
verifying the identity of the passport
holder by a biometric system. The
ICAO (International Civil Aviation
Organization) has validated face
recognition as the best suited biometric method for this type of application
and is setting standards for storing
and using biometrics with travel
documents.
FaceVACS®-Entry seamlessly integrates
into existing border control systems. It
helps to check travelers securely and
efficiently. The biometric similarity
grade can be fine tuned to optimize
the balance between automatic pro-
Main features:
. Based on the proven FaceVACS®
face recognition technology
. Recognition time of less than a
second
. Easy integration into existing
border control infrastructure
. Easy integration of travel
document readers
. Interface to proven watch-list
monitoring systems available
. Modular software architecture
allows distribution of functions
within the network
. Visual control is possible at
predefined events
. Logging of events including facial
images, if required
. Supports encryption of templates
for privacy reasons
. Supports digital signature of
templates.
cessing by the system and the delegation to border control officers for
further inspection. Specifically for frequent travelers with strong biometric
information stored on their travel
documents or airline cards, the border
crossing procedure becomes more
convenient and faster.
5
FaceVacs®-DBScan: Photograph matching in large databases
FaceVACS -DBScan
®
Photograph matching in large databases
Main features:
. Based on the proven FaceVACS®
face recognition technology
. Outstanding speed of 500.000
matches per second on a single
standard Intel processor
. Scalable to networked configurations of computers
A common problem with databases of
. Flexible and comfortable match
facial images is that the same person
list handling that allows sorting,
may have duplicate entries with diffe-
rearranging, browsing, filtering
rent photos of the same face and
under different names. FaceVACS®DBScan can help to identify these
duplicates. Images from different
sources can be very quickly compared
to the images stored in the database,
resulting in a match list of the most
similar faces.
Beyond the high inspection throughput of the software that runs on standard hardware, the face recognition
quality is key. The excellent inspection
and matching results fit to the user’s
growing requirements and reduce the
operational cost to a minimum.
and more
. Interactive enrollment
. Batch mode enrollment
. Trusted image authorization
support
. Face image quality management
. Management of multiple face
images per person
. Interactive enrollment inspection
and failure correction to improve
the reference base quality
. Extensible and flexible management of additional person related
data
. Auditable configurable journal for
revision purposes and for general
usage/quality reports.
6
FaceVacs®-Alert: Computer-assisted video surveillance
FaceVACS -Alert
®
Computer-assisted video surveillance
Main features:
. Automatic face tracking
. Detection of multiple faces in a
crowd
. Easy integration into video
surveillance systems
. Support of IQEye3® camera with
integrated face finder
. Highlighting of match lists on
An important application area for
automatic face recognition is the
comparison of faces against data
stored in a database. Like this, unwanted persons or persons listed in a
database can be identified in video
images.
surveillance monitors
. Threshold for identification and
match list length
. Enrollment from scanned-in photo
. Enrollment from recorded video
. Enrollment from live camera
. Enrollment from image database.
The video camera used for this
purpose could be mounted hidden at
the entrance of a sports stadium or in
an airport. A wide-angle lens could
cover a large range of view. All faces
visible will be automatically detected
and their facial features matched
against the database. If the similarity
with an entry is large enough, a quiet
alarm can be issued. At a surveillance
monitor, the found entries can be
compared visually with the live image.
All events are logged so that they can
also be evaluated later.
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Cognitec Systems GmbH, based in
Cognitec’s technology and products
Dresden, Germany, develops and
build upon the extensive knowledge
markets the well-established and
of our scientists and software engi-
world-leading FaceVACS® face recog-
neers who have been working with
nition software.
face recognition systems for years. We
© Cognitec Systems GmbH, March 2003, rev. 01
About Cognitec Systems
make this knowledge available to our
Cognitec’s software experts have been
customers in order to apply face
developing face recognition technology
recognition to your problems. We also
since 1995. This software technology
offer to customize our products to
is able to recognize persons in video
special needs. Technical support for
images or on photos from their
our customers is an essential part of
characteristic facial features. In various
our offering.
independent evaluation tests,
FaceVACS® has proven to be one of
We at Cognitec are focused on face
the leading products on the market.
recognition technology and applica-
Industry and government customers
tion. Our commitment is to deliver the
use FaceVACS® for physical access
best performance available on the
control since 1996. The installation of
market.
the SmartGate system at Sydney
International Airport in 2002 was a
major step towards a solution for
automatic border control using
Cognitec’s software. Software companies all over the world have started
developing applications using our
software development kit.
For further information please visit
www.cognitec.com
or contact
Cognitec Systems GmbH
An der Flutrinne 12
D-01139 Dresden
[email protected]
phone:
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+49-351- 8 62 92-0
fax: +49-351- 8 62 92-10