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Topic: Photosynth Digital Elevation Models

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sir_ivar (Over 1 year ago)
I finally had some time this week to test a proof of concept that Photosynth can create digital elevation models (DEMs).  It works relatively well but is a little complicated and requires a lot of high-end GIS application use.  So, it is possible to create geo-referenced 3D maps using this process but most people won't have access to all the tools that I used.

Here is a map of the DEM in planview:
http://70.114.146.89/~mwillis/SynthDEM.jpg

Here is a link to the original:
http://photosynth.net/view.aspx?cid=48aefb28-1057-4e82-9c64-5459d1b6c337

You can also see an animation of the data on youtube:
http://www.youtube.com/watch?v=Tuby5gNpRoY&feature=channel_page

And finally, here is a link to a Google Earth KMZ file, if you want to see how it lines up with the "real world":
http://70.114.146.89/~mwillis/Synth_DEM_by_M_Willis.kmz
sir_ivar (Over 1 year ago)
The animation in the previous post didn't really show what I was hoping to, so I made a new one.  The new one shows the 3D aspect of the DEM much better.

The link to the updated animation is here:  http://www.youtube.com/watch?v=j_Iqs8go75k
madeeds (Over 1 year ago)
This is very cool.  Is it possible to texture the DEM with the colors from the point cloud?
sir_ivar (Over 1 year ago)
madeeds, I'm working on that now.  I should have that online in a few days.
sir_ivar (Over 1 year ago)
I wasn't able to render the point cloud by color.  The GIS software just can't handle it.

I did drape the photomosaic over the SynthDEM.  You can see that here:

http://www.youtube.com/watch?v=nJgvLll57f0
douglas (Over 1 year ago)
This is awesome!!  What tools did you use to create the DEM?
tbenedict (Over 1 year ago)
That's seriously cool.  SERIOUSLY cool.

Tom
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