Depth from Focus

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|[[Image:grid_0055.jpg|thumb|200px|First surfi-sculpt object, Leica DM LAM]]||[[Image:wheel_0136.jpg|thumb|200px|Second surfi-sculpt object, Leica DM LAM]]||[[Image:BrokenSuevit1_001500.png|thumb|200px|Piece of Suevit (enamel like material from meteorite impact) from the [http://en.wikipedia.org/wiki/Ries Nördlinger Ries, Leica DM RXA]]]||[[Image:Hair20.png|thumb|200px|Micro-camera image of a hair on top of a laser printout]]
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|[[Image:grid_0055.jpg|thumb|200px|First surfi-sculpt object, Leica DM LAM]]||[[Image:wheel_0136.jpg|thumb|200px|Second surfi-sculpt object, Leica DM LAM]]||[[Image:BrokenSuevit1_001500.png|thumb|200px|Piece of Suevit (enamel like material from meteorite impact) from the [http://en.wikipedia.org/wiki/Ries Nördlinger Ries], Leica DM RXA]]||[[Image:Hair20.png|thumb|200px|Micro-camera image of a hair on top of a laser printout]]
 
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Revision as of 16:25, 6 November 2005

Here are some typical microscope images (showing a surface, which has been shaped using a power beam).

First surfi-sculpt object, Leica DM LAM
Second surfi-sculpt object, Leica DM LAM
Piece of Suevit (enamel like material from meteorite impact) from the Nördlinger Ries, Leica DM RXA
Micro-camera image of a hair on top of a laser printout

Using a focus-stack one can compute images with extended depth of focus:

Extended depth of view for first object
Extended depth of view for second object
Extended depth of view for Suevit (fringes have been removed manually)
Extended depth of view for the hair

If the surface can be illuminated properly, one can even do a 3D-reconstruction of the surface:

3D reconstruction of first object (742kB video)
3D reconstruction of second object (725kB video)
[[Image:suevit20.png 200px|3D reconstruction of suevit (1.4MB video)]]
3D reconstruction of hair (1.4MB video)
Stereo picture of first object (2.2MB video)

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.

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