2011-04-18
Photosynth for iPhone- quick thoughts
Microsoft Research have been working on Photosynth for ages. If you’ve not heard of it, here’s the Wikipedia cheat sheet:
Photosynth is a software application from Microsoft Live Labs and the University of Washington that analyzes digital photographs and generates a three-dimensional model of the photos and a point cloud of a photographed object.
Today saw the launch of an iPhone app building on that research.

It’s not the first stitcher (Autostitch has been available for a couple of years at least), nor is it the first live stitcher (360 and Panoramatic both came out last year, I think), but it is notable for being free (unlike the three previously mentioned apps), and for having a particularly slick UI.
When taking a panorama with Photosynth, after taking the first shot (by simply tapping the screen), any movement of the phone/camera is reflected on screen. Once the centre of the image (represented by a green dot) gets outside the dotted line marking the edge of the panorama, a new shot is taken, extending it outwards. This continues until you mark the stitch as done.
Then there’s a short wait while the final image is rendered (and saved to the camera roll, although there’s no notification of this). While that’s happening, you can edit a title, but not description, let alone tags. Oddly, you can “add nearby businesses”. Once it’s complete, you can share to Facebook, Photosynth or Bing. Sadly, email, Flickr and Twitter are missing- but then there is a copy you can work with.
Generally, this is very good for a version one. Although I had one crash while stitching, the image was saved anyway. I miss the option that 360 offers of stitching to a white (rather than black) background, and more share options would be nice. I also suspect I take better source photographs when I’m shooting individual photos, but a bit of patience would fix that. Overall, it’s definitely worth downloading and playing with.