Re: stitching multi-viewpoint panoramas
- On 04/01/2009, at 8:54 PM, "Jeffrey Martin" wrote:
> http://www.vrlog.net/2009/01/how-to-photograph-and-stitch-very-long-Nice work indeed. It's a 2006 article though...
> nice work. Rick Szeliski is involved of course ;))
Back in late 2006 I cooked up one of these linear-pano babies of a
250m stretch of shops about to be demolished, so I have a bit of
experience about making these things. @ 80x shots and @ 100 hours in
Some issues I faced which I think automated systems are going to have
a hard time solving:
o Lots of parked cars, not just one or two. What happens when a
parked car in shot #5 pulls out in #8?
o How do you align overhead power-lines (which criss-cross all over
the place) or road markings or shadows, ie. things not in the
"dominant plane". What about parallax errors with clouds visible
behind and through power lines?...
o How do you get the sky to be consistently blue, and not filled with
occasional blue blobs (like the single blue-sky Agawala et. al.
o How will it cope with dodging cars and trucks on an incredibly busy
So... nice effort from Aseem Agarwala (et al.), but I think these
panoramas will continue being rare because they take such an
incredibly huge amount of work in photoshop to pull off believably.
That said, Agawala (et al.)'s supermarket aisle sample is pretty
cool... now if only they learned how to do a colour balance :?)
Blue Mountains Australia
- Agawala (et al.)'s supermarket aisle sample is pretty
> cool... now if only they learned how to do a colour balance :?)The supermarket aisle example is quite cool but it does have a lot of
> Andrew N.
errors too if you look closely. But even with those errors, it would
be wonderful if their approach was commercialized as it would probably
allow those 100's of hours to turn into 10's of hours.