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A Future Web-Based Visible Human Explorer
Extending from the network version, the future Visible
Human Explorer can be used to access the Visible Human Project data sets
that do not even exist on the local area network. While current data sets
are smaller than 100 Gbytes in size, the future Visible Human Project data
sets could be as large as 2 terabytes if the bodies are scanned at 10 slices
per millimeter instead of 3 slices per millimeter (6,000 x 4,000 x 18,000
x 48 bits). While some users can afford the disk space for storing a few
hundred Gbytes of the current Visible Man and Visible Woman data sets,
no one could afford 2 terabytes of local disk storage. A web-based approach
is required to tackle this problem. Since the Visible Human Explorer takes
the approach that does not require the entire image to be first loaded
into memory, the size of the data set does not really matter. The only
potential problem is the bandwidth. For advanced Internet network it would
still work for this kind of data set of this size. In fact, the advantage
for the Visible Human Explorer over other image browsing systems increases
as the size of the data set increases. Again, implementing a multiple image
resolution approach at the central site would alleviate problems of response
times and bandwidth of the current Internet.
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