New Techniques inComputational photography

Marc Levoy

Computer Science DepartmentStanford University

Ó 2008 Marc Levoy

Ó 2008 Marc Levoy

Ó 2008 Marc Levoy

Other examples

fern spore(60x, autofluorescence)

zebrafish optic tectum(calcium imagingof neural activity)

mouse oocyte(40x, DIC)

Ó 2007 Marc Levoy

Axial resolution(a.k.a. depth of field)

• wave term + geometrical optics term

• ordinary microscope (16x/0.4NA (dry), e = 0)

• with microlens array (e = 125μ)

• stopped down to one pixel per microlens

eNAM

nNA

nλDOFtot

2

3.34.0

1535.02

8.225.193.31254.016

14.0

1535.02

237spots125.193.3

→ number of slicesin focal stack= 12

(geometrical optics dominates)

(wave optics dominates)