On Tuesday, July 22, 2003, at 04:03 AM, Bruce Anderson wrote:
Hello Joe, etc,
I can answer a few issues on the Vatican contents. They are being
delivered and shown using the Zoom technology from iseemedia
(www.iseemedia.com). The technology originated from Live Picture Inc,
then to be MGI Software, and now iseemedia.
The images are being 'streamed' from an image server, to a java applet
client. Different to shoing in say quicktime, or the ptviewer, the
image data is being shown on demand in real time, vs the whole image
being downloaded all at once. Thus an extrememly large image/panorama
can be shown over small bandwidths. This was a pre-requisit for the
vatican as they wanted to show high detail, but reach users down to
33k lines in places such as Africa, etc. I am unsure of the
resolutions, however from my eye they would be in the range of about
10,000x2000 pixels. The contents in Quicktime would mean several MB to
dl.
Anyone doing this in QT I hope would use Zoomify, which can deliver
spectacular, high-rez panos using a tiled retrieval mechanism not
dissimilar to the LP technology (except without a dedicated server app)
- in fact, the founder of Zoomify worked at LP on the same product (LP
Image Server), IIRC.
I'm a current user of the Zoom Image Server and it can do great things
- we have over 600GB of images online (internally) which are delivered
to various apps, on different platforms, and aside from the actual
zooming, the server provides scaled renditions of 50MB+ images in
realtime to about 12 different presentation sizes (ranging from 38px
high to about 1600px on the long side). I don't use the pano
capabilities though.
The contents are not cubicn or spherical. This is in line with their
concept of having panoramas to give a general view of the room, and
high res 2d images of the art seperately to zoom in on. Even if cubic
was there, it would be best as a seperate option, rather than a
replacement to the current contents. Also the requirement was high
detail being shown in the panoramas. Unless a special system is
employed then using wider/fisheye lenses will bring in loss of detail
in the distortion.
I'm unsure of the panorama and equipment used. It was not a roundshot
though I know that, as Photovista was used to stitch the panoramas
together.
- R
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