8/28/2002: Twins veins

[Undertoad]

This is the kind of image they create before doing surgery on the twins where they are connected at the head.

I had no idea they could manage to put together this amount of information. Neat.

[headsplice]

anyone know how long the surgery will take? I think I heard that some twins (possibly this pair, possibly not) spent 28 or so hours under the knife. That is a freakin miracle, I don't care what anyone else says.

[Nothing But Net]

Gee, headsplice, I would have figured you to be an expert in the field!

[russotto]

Yep. I used to work for a company which did this kind of stuff. We called that kind of image "4D Compositing", among other things.

[jaguar]

I assume becase they map it like a movie from start to end of surgery? Or jsut to sound cool?

[russotto]

Originally posted by jaguar
I assume becase they map it like a movie from start to end of surgery? Or jsut to sound cool?

The internal name was "compositing", "4D" was one of the many marketing names. We had 2D modes (which showed a slice of the dataset), 3D modes (which showed surfaces, more or less -- you could show the skin surface, or the blood vessel surface, but not both. Nor strictly true; there was a transparency thing where you could do both, but no color or anything like that), and the compositing mode. In compositing mode you could take opacity ranges, assign color and transparency values to them, and show them. This image is even more than that because the transparency of the skin range clearly varies across the image, but it's the same idea.

These were static datasets -- 4D didn't imply time.