Peter O'Byrne wrote:

>Thanks for the help Steve, Colin & Keith. Quicktime is now running and
>iTunes is nowhere to be seen. Chong-Yee, your photos are interesting,
>and certainly easier on the eye than the system in use 25 years ago,
>which required matched right & left slides to be viewed
>simultaneously.

Hi, Peter,

It's one of a number of ways of depicting objects in 3D. The advantage is no 
glasses and full colour. The image is also not static as it is with traditional 
stereoscopic dual-colour images - you get to see around the sides and the back 
of the object. The disadvantage is that you need a computer - you can't print 
VR objects in a book!

>Is there anyway of extending the view so we can see from above ?

Yes, absolutely. See the medium size and large size images of bird specimens at 
http://nlbif.eti.uva.nl/zma3d/index.html.

You can even do a full all-angles view, which can be very impressive Apple 
makes good use of these to show off their iPods at 
http://www.apple.com/ipodnano/gallery/qtvr.html for example (sorry, we seem to 
always come back to iTunes!).

The problem is that you need a setup that allows the object to be rotated and 
photographed from above for such "multi-row" objects. The rigs can be very 
expensive, in the thousands of dollars to tens of thousands. I'm using a 
relatively low cost setup for my single-row objects comprising a webcam and a 
turntable. I too would love to see up-down views of the orchids.

Now, if I won the lottery...wait, I need to start buying lottery tickets first!

Regards,

Chong-Yee

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