Stereoscopic analysis

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GRASS 5

There is some old GRASS 5 software in

http://grass.osgeo.org/outgoing/grass5/ → stereo

which does this job. It awaits integration into GRASS 6.

Tutorial: http://grass.osgeo.org/gdp/stereo-grass/index.html

GRASS 6

There is a d.anaglyph addon module for an easy way to greate 3D anaglyphs for use with red/cyan glasses. It uses the m.nviz.image module to render two viewpoints, then from those composes the 3D image into a PNG file. It should be possible to port that functionality into NVIZ itself.


Anaglyph

Red/cyan anaglyph created with the d.anaglyph module
       

Stereogram

Stereogram created with the d.anaglyph module (requires stereoscope viewer)
Stereoscope viewer

"Free-view" Stereogram

  • No special viewing equipment needed: just cross your eyes.


See also