Ben - That's a lot of shots. Can you do some tests to determine the minimal required number that still produces decent stitches? Would 25% overlap be sufficient? We could try to indicate the angle for the next photo with icons, but I feel like 8 shots or so is the maximum we could require before the icons looked nearly the same in any 3 adjacent positions.
Here's another thought....I know this is probably pushing things a lot on our little machine, but how long would a single diff take to determine the angle between a previously taken photo and a newly taken one. I envision snapping the first photo 'A' in the sequence, and then having onscreen instructions tell the kid to 'swivel to the right'. Then, if you could grab a still every second in the background while she swivels, lets say, and determine its overlap with the previous photo A, we could switch the onscreen controls to indicate 'stop here and take photo B' and so on, with live feedback. If they move too fast and you can't find any overlap, we can switch and say 'swivel back to the left.' Depending on the speed you can do this at, we could even have a little horizontal "meter" with a ball in it, and they just have to get the ball to the center, like a level, to line up the next shot. It wouldn't be smooth, but at least it would be obvious. What do you think? - Eben On 6/20/07, Benjamin M. Schwartz <[EMAIL PROTECTED]> wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Samuel Klein wrote: > do we have a way of telling or > estimating the XO's swivel angle from hardware? The stitcher determines the angle from the images themselves. I'm not aware of any helpful hardware. Eben Eliason wrote: > Ben, what's the viewing > angle of the camera? Is 6 shots sufficient? The horizontal viewing angle is about 45 degrees. That means that 16 shots are required if successive frames overlap by 50%. I took 16 frames using the Capture activity in a minute or two. Good interface design will be required to make this process painless. Obviously, panoramas less than 360 degrees require fewer shots. - --Ben -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGeWoPUJT6e6HFtqQRAkVMAJ9gYHH/TOzbDMfkPuBuC7mZYok7NQCcCyno r4JLcs80t69NCv9F1IkzNFo= =X1MI -----END PGP SIGNATURE-----
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