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Spot on.

There's a lot of current work going on that effectively splits computer vision into multiple parallel tasks for better results but uses previously well known techniques (PTAM is another good example).

As an aside, I read through the paper and it doesn't look like this could track, say, your index finger separately from other fingers if, for a moment, your hand was occluded. This pretty much bars using this exclusively in a Minority Report style interface (you would need hand pose tracking like the stuff Kinect does). Though, I'm just re-iterating your point that this isn't the second coming of computer vision.

That being said, there are some really good ideas here.

I don't understand why everyone seems to have such a hardon for Minority Report-style systems. Gorilla arm pretty much rules that out from the start, and a tablet is more natural anyway.

A trackpad with a separate screen would be optimal (so you don't have to look at your hands).

Gorilla arm would prevent people from using that kind of system to replace mouse and keyboard, but I don't see why it could not work for some applications. I can think of several use cases where I would like a UI that does not require me to touch the hardware (think cooking or watching videos in the bath tub).

Minority Report is tremendously well-remembered as an interface concept and almost forgotten as a Spielberg movie. The Wikipedia article's longest section is "Technology."

By now, it's practically a 145-minute tech concept video with a plot starring Tom Cruise.

Yes using 2d displays in minority report was a huge mistake, but imagine it in 3d. Also that doesn't mean that you will have to keep your arms out before your eyes. Ideally you don't have to sit before your computer the whole day and use only a keyboard and a mouse, when you can have so much more freedom. Think of opening a book, ironing, or placing lego blocks etc.

Tony Stark, Iron Man: JARVIS --- that was his greatest invention - without JARVIS he couldn't have made his later generation suits.

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