Overview
Could you explain
exactly what Insight is?
Really
what we are, more than anything, is an interface between archaeologists
(loosely, people who study real things) and the people who are, often
unbeknowst to them, innovating whole new approaches to looking at real
things. Instead of making sketches or taking pictures, for instance, people
are now able to make 3D representations of objects, whether it’s a clay jug from a Turkish wreck or an entire mosque; we've done
both. We feel this kind of innovation has very striking possibilities for
what is sometimes called the “cultural heritage” field, as a whole. An
amazing sequence of technological development (digital photography, laser
scanning, video projection, QTVR, 3D on the web) has come about in the last
ten years, and we believe that all of these innovations have immediate
applications to archaeology.
Still,
connections between new tool-makers and tool-users are hardly ever made, for
several reasons. First, these new tools almost always come out of the
big-money world of industry, and are completely out of reach for researchers
and academics. So our response here is to provide these expensive new
techniques to researchers without charge. The second reason has more to do
the fact that archaeologists and computer people are sometimes polar
opposites, and so it isn’t going to occur to either group to reach out to
the other. Very simply archaeologists and computer people aren’t usually
very aware of each other, which is a shame. We work to cross-pollinate the
disciplines, since there is a very great reward on both sides.
Our head Egyptologist,
Dr. Philippe Martinez (philippe@insightdigital.org)
is a case in point. He has an extensive background in archaeology, but has
also been able to work very successfully with technology. The results are
incredible to see. So, in many ways Philippe is himself acting like an
interface, a translator. We try to help connect people, groups, ideas. By
occupying those borderlands we also become an interface between the 21st
century (where computers are pretty common) and the 19th century
(when drawings were the primary mode for describing things)
Do you develop the software and 3-D technology yourself?
Yes, we
do write computer code ourselves to help make the connection between
existing software packages—and we’re happy to share any code we have. We
are also currently working with commercial hardware and software vendors to
help develop faster, easier workflows for our extremely challenging
production situations. For instance, this January, 2003, we will take a
brand new laser scanning control system to Egypt that was created with the
cooperation of Minolta Corp., who is providing the laser scanner and its
control architecture, and Geometry Systems Inc. (GSI), who is writing custom
code to control the scanner according to our detailed specifications.
Altogether, we use a whole constellation of research code and commercial
applications. For our more cinematic images, we use software from the movie
industry (Alias|Wavefront’s Maya, Apple’s Shake). Over the years we’ve been
lucky enough to collaborate with some of the finest research minds in the
field of computer science. Wherever possible, we openly endorse their
spectacular work. Stanford’s Dr. Marc Levoy has been unstinting in his
support, allowing us access to a brilliant suite of code first developed for
his well-known Digital Michelangelo Project. Also deserving of mention is
the remarkable Dr. Paul Debevec at the Institute for Creative Technology (ICT),
who has so successfully raised the bar for those who are attempting to
create accurate, beautiful pictures of ancient sites.
Why is there a need to record and preserve data from
archaeological sites?
Dramatic
examples include the destruction of the Bamiyan Buddhas by the Taliban, the
recent damage to Machu Picchu at the hands of an American film crew, or the
wholesale, organized theft of Khmer antiquities in Cambodia. In these
cases, we have absolutely lost part of the cultural record of humanity, and
in each of these cases, the losses are clearly felt around the world.
If these
sites had been documented with 3D scanning, it would actually be possible to
continue to study these sites and pay them virtual visits. It is even
possible to recreate physical proxies from 3D data, which has incredibly
exciting implications. It is possible, even, to imagine returning head to
the decapitated Young Memnon in the British Museum, or return copies of the
Elgin marbles to the Parthenon centuries after they were removed by the
British.
Fundamentally, many imperiled sites are deteriorating dramatically. Good
archaeological work takes time, and so while resources are spent documenting
certain sites, equally deserving sites are forced to go without study. The
risk, of course, is that there may not be much left to record for posterity
if and when the neglected sites are finally slated for documentation. So in
these cases we are working on ways to quickly document and publish a site as
a hedge against that site’s ultimate disintegration.
Seems like documentation is ahead of preservation, due to
financial, political and other obstacles.
That’s
right, good documentation is often a necessary prerequisite for physical
preservation—whether you consider a shellmound in Emeryville, California or
a soon-to-be-flooded temple in China. The need for documention before
presevation is well illustrated by a Sufi Monument in Cairo that we scanned
for the American Research Center in Egypt (ARCE). ARCE was already planning
to restore the monument, and before they broke ground, they needed good
documentation of the site. The first reason for wanting documentation is
just as a reference document: ARCE was studying the past plans for the
building and this was in effect a high-resolution, accurate ground plan made
in the year 2000. And having good ground plans of the building as it
stands, as opposed to how it was drawn hundreds of years ago, is very
valuable for the restoration team as they begin work. But even deeper, they
wanted monitor how quickly the limestone facades of the monument were being
eaten away by Cairo’s acid rain. By documenting a precise state of the
facade in 3D, it becomes possible to look and compare the exact state
of the building in 2000 to its state in the future. You can even put these
3D views together, creating a time lapse animation where you can actually
see the disintegration of the surface over time. The idea for this
application came directly from ARCE, and it’s really an example of how
creative people can be once they have a new tool to work with.
Please highlight a few of the projects that Insight has/is
working on
One
current project, and another good example of the link between documentation
and restoration, is our project to digitally reconstruct a colossus of
Ramsses II in Thebes. In this case a decree had gone out from Madame
Mubarak (Egyptian President Hosni Mubarak’s wife) that this ruin, destroyed
by Christians in antiquity, should be rebuilt. Literally hundreds of pieces
remain in situ, but the task of putting the pieces together is, in the
understated language of computer people “non-trivial”. Dr. Christian
Leblanc, who is in charge of the site, had led an extensive effort to sort
out the massive remains of the colossus on the ground. But what was really
needed was a way to fit this jigsaw puzzle together in 3D space, if the real
colossus was ever to be properly reassembled.
So what
we did in this case was to exhaustively document the most valuable fragments
in 3D, which entailed spinning them around on steel caster plates in front
of our laser scanning equipment. The whole endeavor took an enormous amount
of effort from our team, and on the part of the French workmen at the site.
But once we had those fragments in our 3D software, we were able to test-fit
different possibilities and ultimately develop a reconstruction of the
colossus. Now our reconstruction can serve as a roadmap for reconstruction,
and in fact can help a committee reach a consensus about whether or not the
colossus should in fact be rebuild. And we also made new discoveries
that surprised everyone as we went along—among them, the fact that this
colossus is certainly among the largest ever built in Egypt.