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Topic: Single Wall shot to a Pano via Semantic Zoom

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mwiththeat (Over 1 year ago)
Hello,

I have a wall synth and I would love to be able to zoom out and see the whole wall.

With Photosynth 1 it was possible to step back and see the whole creation - I feel this feature should also come back to Photosynth 2

Thanks

Matt
NateLawrence (Over 1 year ago)
This is your wall synth you were asking about, Matt? http://photosynth.net/preview/view/6f226d69-b3e9-4f9a-8d67-a5a6530b4cad

Your suggestion actually makes a lot of sense for the Wall synth type - way more than the other new synth types.

It reminds me of an experiment by Josh Harle from years ago.
Here's a blog post he did about it: http://tacticalspace.org/archives/camperdown/ (sadly his interactive demo is missing in action)
The accompanying synth: http://photosynth.net/view.aspx?cid=56f11824-aab7-4984-ab16-e5c7c3e116f5
And a snapshot of part of his reprojection on flickr: http://www.flickr.com/photos/joshharle/5242353417/sizes/l/in/photostream/

Greg Downing also did something similar: http://www.xrez.com/blog/photogrammetric-gigapixel-images/

This also reminds me of a request from user Huck Rorick from years back: 
https://getsatisfaction.com/livelabs/topics/keeping_or_creating_a_context_for_synth_images
NateLawrence (Over 1 year ago)
The bad news is that the Photosynth team seems pretty bent on not making the 'whole creation' part of the new Photosynth.

The new About page http://photosynth.net/preview/about says, "...the technology uses the feature points in each photo to generate 3D shapes. It does so on a per-photo basis rather than trying to generate a global 3D model for the [entire] scene."

It isn't what you're asking for, but have you found the [C] and [M] shortcut keys?

[C] will toggle Camera modes to global + back. (Zoom out to see camera positions)
[M] will toggle an overhead view Map of the camera positions.

If you want to see the point cloud in global view: 
1: pull up the debug panel with 42 
2: check the pointCloud checkbox
3: refresh the page
4: re-enter global camera and zoom out

Thanks to Henri Astre on the Photosynth team for the point cloud instructions: http://photosynth.net/discussion.aspx?cat=00581351-82d8-438d-a37b-7eadb3fb4991&dis=fc1c6324-b8dd-4571-90ea-9761e5de694b
joshharle (Over 1 year ago)
Hi Nate, Matt,

I just miraculously stumbled on this thread out of the blue, and am having a look around for the interactive wall reconstruction files. 

Just a note on the implementation, which was fairly convoluted: I used my camera re-projection tool (http://tacticalspace.org/archives/cameraexport-photosynth-to-camera-projection-in-3ds-max/) to render the wall with images, rendered close-up sections, then used Microsoft Image Composition Editor to create a Silverlight online zoom version.  I'd like to think that if I did it all again today it would be a much more elegant process!
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