Difference between revisions of "Stereoscopic analysis"

From GRASS-Wiki
Jump to: navigation, search
m (minor text)
(+OTB Stereo Framework; other links updated)
 
(3 intermediate revisions by 2 users not shown)
Line 49: Line 49:
 
== See also ==
 
== See also ==
  
 +
Visualization:
 
* The [[Stereo anaglyphs]] wiki page
 
* The [[Stereo anaglyphs]] wiki page
* [http://www.crssa.rutgers.edu/courses/airphoto/airphoto7/ Principles of Photogrammetry: Stereoscopic Parallax]
+
 
* [https://github.com/nasa/StereoPipeline nasa/StereoPipeline]: The NASA Ames Stereo Pipeline is a suite of automated geodesy & stereogrammetry tools designed for processing planetary imagery captured from orbiting and landed robotic explorers on other planets
+
Other approaches:
 +
* Structure from Motion (SfM): [http://www.lancaster.ac.uk/staff/jamesm/research/sfm.htm 3D surface and DEM construction from images]
 +
 
 +
Other software:
 +
* [https://www.orfeo-toolbox.org/CookBook/Applications/app_StereoFramework.html OTB Stereo Framework]
 +
* [http://gn.dronacharya.info/CivilDept/Downloads/question_papers/IVsem/GeoInformatics/Unit1.pdf Principles of Stereoscopic Parallax]
 +
* [https://github.com/NeoGeographyToolkit/StereoPipeline NASA Ames Stereo Pipeline]: a suite of automated geodesy & stereogrammetry tools designed for processing planetary imagery captured from orbiting and landed robotic explorers on other planets
 
* [http://www.efoto.eng.uerj.br/en e-Foto] is a free educational digital photogrammetric workstation for Mac, Linux, Windows; GNU GPL
 
* [http://www.efoto.eng.uerj.br/en e-Foto] is a free educational digital photogrammetric workstation for Mac, Linux, Windows; GNU GPL
* [http://hugin.sourceforge.net/ Hugin] (stiches images together into panoramas) and [http://hugin.sourceforge.net/docs/manual/Autopano-sift-C.html Autopano tools] (finds control points in overlapping image pairs)
+
* [http://hugin.sourceforge.net/ Hugin] (stiches images together into panoramas) and [https://wiki.panotools.org/Cpfind cpfind tools] (finds control points in overlapping image pairs)
 
 
  
 
[[Category: FAQ]]
 
[[Category: FAQ]]

Latest revision as of 03:10, 9 August 2020

GRASS 5

Creating a DEM from overlapping images

Stereo basic.gif

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

Viewing existing data as stereo 3D

The d.anaglyph addon module provides an easy way to create 3D anaglyphs and stereographs. It uses the m.nviz.image module to render two viewpoints, then from those two images composes the 3D image into a single PNG file. In time it should be possible to port this functionality into NVIZ itself.


Anaglyph

Red/cyan anaglyph created with the d.anaglyph module
       
Anaglyph glasses.png

Stereogram

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

"Free-view" Stereogram

  • No special viewing equipment needed: just focus into the distance or cross your eyes.
  • Here is a nice how-to-view article
  • Screenshot: (created with the d.anaglyph module)


Spearfish freeview stereogram.png

See also

Visualization:

Other approaches:

Other software: