Depth from Focus
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| − | |[[Image:grid_0055.jpg|thumb|300px|First surfi-sculpt object]]||[[Image:wheel_0136.jpg|thumb|300px|Second surfi-sculpt object]] | + | |[[Image:grid_0055.jpg|thumb|300px|First surfi-sculpt object]]||[[Image:wheel_0136.jpg|thumb|300px|Second surfi-sculpt object]]||[[Image:BrokenSuevit1_001500.png|thumb|300px|Piece of Suevit (enamel like material from meteorite impact) from the [http://en.wikipedia.org/wiki/Ries Nördlinger Ries]]] |
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| − | |[[Image:griddv.jpg|thumb|300px|Extended depth of view for first object]]||[[Image:wheeldv.jpg|thumb|300px|Extended depth of view for second object]] | + | |[[Image:griddv.jpg|thumb|300px|Extended depth of view for first object]]||[[Image:wheeldv.jpg|thumb|300px|Extended depth of view for second object]]||[[Image:SuevitDV.png|thumb|300px|Extended depth of view for Suevit (fringes have been removed manually)]] |
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| − | |[[Image:grid1080.jpg|thumb|300px|3D reconstruction of first object [http://vision.eng.shu.ac.uk/jan/grid1.avi (742kB video)]]]||[[Image:wheel1008.jpg|thumb|300px|3D reconstruction of second object [http://vision.eng.shu.ac.uk/jan/wheel1.avi (725kB video)]]] | + | |[[Image:grid1080.jpg|thumb|300px|3D reconstruction of first object [http://vision.eng.shu.ac.uk/jan/grid1.avi (742kB video)]]]||[[Image:wheel1008.jpg|thumb|300px|3D reconstruction of second object [http://vision.eng.shu.ac.uk/jan/wheel1.avi (725kB video)]]]||[[Image:suevit20.png||thumb|300px|3D reconstruction of suevit [http://vision.eng.shu.ac.uk/jan/suevit.mpg (1.4MB video)]]] |
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| − | |[[Image:grid245.jpg|thumb|300px|Stereo picture of first object [http://vision.eng.shu.ac.uk/jan/grid.avi (2.2MB video)]]]|| | + | |[[Image:grid245.jpg|thumb|300px|Stereo picture of first object [http://vision.eng.shu.ac.uk/jan/grid.avi (2.2MB video)]]]|||| |
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Revision as of 15:50, 6 November 2005
Here are some typical microscope images (showing a surface, which has been shaped using a power beam).
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Using a focus-stack one can compute images with extended depth of focus:
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If the surface can be illuminated properly, one can even do a 3D-reconstruction of the surface:
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[[Image:suevit20.png | 300px|3D reconstruction of suevit (1.4MB video)]] |
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As the idea for the algorithm was fixed already, it was possible to implement the algorithm as a command-line tool in less than 4 days, using existing Mimas-software (exspecially the operators for boost::multi_array).
As this is a "quick hack", there's still lots of space for improvements.
Links
- german diploma thesis about depth of focus (also available as PDF)
- Mechrob-paper Focus set based reconstruction of micro-objects
