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19 August 1998
QuickTime "Revolutionizing scientific imaging"
by Ben
Wilson
Reprinted from MacCentral
Online
In the latest ground-breaking use of QuickTime
technology, a group of scientific engineers have used QuickTime VR in
conjunction with a scanning electron microscope to create a rotatable, 3D model
of a microfossil specimen. Patrick Lyons, on of the engineers who devised this
method of imaging told MacCentral, "We believe (this method) will
revolutionize the way scientific material is illustrated.
The massive importance of this step forward is
that instead of viewers only being able to see images generated by scanning
electron microscopes as flat images on a sheet of paper, they can now manipulate
an object and view it from all angles. "Instead of just a series of static
images the viewer has the ability to examine a virtual copy of the specimen. We
are not aware of any previous combined application of QuickTime VR and SEM ( in
the scientific literature." said the scientists.
The developers of this method also add that a
benefit of QuickTime VR is that with proper preparation the final movie is
relatively easy to generate. The process was as follows:
"Once the images were captured they were imported to Photoshop 4.0 to be
digitally edited. Backgrounds were removed and both brightness and contrast were
corrected. They were then exported as PICT files into Apple's QuickTime VR
Authoring Studio software package. From within this package, all the various
attributes of the final movie can be configured; i.e. starting frame, the number
of frames per second, the height and width of the movie, type and amount of
video compression. Hot Spots were created in QuickTime VR Authoring
Studio".
The products used to produce the QuickTime VR
object movie were an Apple Power Macintosh G3 with 160 megabytes of memory,
Adobe Photoshop 4.0, Graphic Converter 3.2 and Apple's QuickTime VR Authoring
Studio. The QuickTime VR, created completely on a PowerMac G3 object movie, is
approximately 650K and is available for viewing at http://www.earthsci.carleton.ca/paleo/1998_2/lyons/figure1.htm.
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