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. 2014 Apr 23;9(4):e94346. doi: 10.1371/journal.pone.0094346

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© 2014 Nguyen et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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A) shows an extra mask with a 2 mm hole put in front of the lens to extend depth of focus as compared to B) an F/8 lens aperture. C) the resulting images captured at the same angle by small aperture. D) multi-focus image stacking from 31 partial-focus images captured at distances 0.25 mm apart. E)-H) show screen shots of resulting 3D models without and with texture colour.

Inline graphic — A) shows an extra mask with a 2 mm hole put in front of the lens to extend depth of focus as compared to B) an F/8 lens aperture. C) the resulting images captured at the same angle by small aperture. D) multi-focus image stacking from 31 partial-focus images captured at distances 0.25 mm apart. E)-H) show screen shots of resulting 3D models without and with texture colour.