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Preface
21
years ago it
was a joint idea with Hans Rottenkolber to organize a workshop
dedicated to the
discussion of the latest results in the automatic processing of fringe
patterns. This idea was promoted by the insight that automatic and high
precision phase measurement techniques will play a key role in all
future
industrial and scientific applications of optical metrology. A couple
of months
later more than 50 specialists from East and West met in East Berlin,
the
capital of the former GDR, to spend 3 days with the discussion of new
principles of fringe processing. In the stimulating atmoshere the idea
was born
to repeat the workshop and to organize the meeting in an olympic
schedule. And
thus meanwhile 20 years have been passed and we have today Fringe
number six.
However, such a workshop takes place in a dynamic environment.
Therefore the
main topics of the previous events were always adapted to the most
interesting
subjects of the new period. In 1993 the workshop took
place in Bremen and was dedicated to new principles of optical shape
measurement, setup calibration, phase unwrapping and nondestructive
testing,
while in 1997 new approaches in
multi-sensor metrology, active measurement strategies and hybrid
processing
technologies played a central role. 2001, the first meeting in the 21st
century, was focused to optical methods for micromeasurements, hybrid
measurement technologies and new sensor solutions for industrial
inspection. In
2005 the fifth workshop was organized in Stuttgart,
the capital of the state of Baden-Würthemberg and the centre
of a region with a
long and remarkable tradition in machine construction, vehicle
manufacturing
and optics. Thus after Berlin 1989, Bremen 1993, 1997 and 2001, Stuttgart was the third Fringe city
where international experts met each other to
share new ideas and concepts in optical metrology. And this will be
continued
in 2009.
This
volume
contains the papers presented during FRINGE 2009. The focus of this
meeting is especially directed to digital
wavefront engineering, resolution
enhanced technologies, 4D methods addressing applications from
macro to nano considering dynamic changes, sensor fusion and new advances in the
unification of modeling, simulation and experiment. Since optical metrology
becomes
more and more important for industrial inspection, sophisticated sensor systems and their applications
for the solution of challenging measurement problems are chosen again
as one of
the central topics of the workshop. This extended scope was honored by
a great
response on our call for papers. Scientists from all around the world
offered
more than 150 papers. This enormous response demanded a strong revision
of the
papers to select the best out of the overwhelming number of excellent
papers.
The strong limitation of the number of papers which can be presented
orally and
discussed effectively during a workshop without holding parallel
sessions was
again an impotant orientation.
The
papers
presented in this workshop are summarized under 5 topics:
1.
New Methods and
Tools for
Data Acquisition and Processing
2.
Application
Enhanced
Technologies
3.
4D Optical
Metrology over a
Large Scale Range
4. Hybrid
Measurement Techniques
5.
New
Optical Sensors and Measurement Systems
As
in the
former workshops, each topic is introduced by an acknowledged expert
who gives
an extensive overview and a report of the state of the art. The
classification
of all submitted papers into these topics was again a difficult job
which often
required compromises. We hope that our decisions will be accepted by
the
audience. On this occasion we would like to express our deep thanks to
the
international program committee for helping us to find a good solution
in every
situation.
The
editors
would like to express their thanks to all the authors who spent a lot
of time
and effort in the preparation of their papers. Our appreciation also
goes to Eva
Hestermann-Beyerle and Birgit Kollmar-Thoni from Springer Heidelberg for providing excellent
conditions for the publication. Our deep thanks
is directed to the members of the ITO staff. The continuous help given
by
Katharina Bosse-Mettler, Katja Costantino, Gabriele Grosshans, Heiko
Bieger,
Valeriano Ferreras Paz, Erich Steinbeißer and Michael Warber
was the basis for
making a successful FRINGE 2009.
Finally, our special thanks and appreciation goes to all friends and
colleagues
for sharing with us again the spirit of the Fringe workshops.
Looking
forward
to FRINGE 2013.
Stuttgart and Warsaw, September 2009
Wolfgang
Osten
and Malgorzata Kujawinska
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