Depth from Focus

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

First surfi-sculpt object

Second surfi-sculpt object

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

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

3D reconstruction of first object

3D reconstruction of second object

Links

• german diploma thesis about depth of focus (also available as PDF)
• Mechrob-paper Focus set based reconstruction of micro-objects