siggraph 2012 computational plenoptic imaging course - 7 schlieren imaging
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SIGGRAPH 2012 Computational Plenoptic Imaging Course - 7 Schlieren ImagingTRANSCRIPT
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This slide has a 16:9 media windowComputational Plenoptic
Imaging
Schlieren Imaging
Wolfgang HeidrichUniversity of British Columbia
Gordon WetzsteinMIT Media Lab
Ivo IhrkeSaarland University
Douglas LanmanMIT Media Lab
Ramesh RaskarMIT Media Lab
Kurt AkeleyLytro, Inc.
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Schlieren Imaging
Ima
ge
s co
urt
esy
Ga
ry S
ett
les
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Schlieren Imaging - Applications
Aeronautical
engineering
Ballistics
Ga
ry S
ett
les
NA
SA
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Schlieren Imaging – Optical Setups
NA
SA
Imp
eria
l Co
lleg
e L
on
do
n
Un
ive
rsity
of
Mis
sou
ri
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Background Oriented Schlieren (BOS)
[Atcheson et al. 2008]
Optical encoding + computational processing!
reference distorted optical flow
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Course Outline
[Atcheson et al. 2008]photograph optical flow 3D gradients refractive indices
setu
p
camera array
transparent, refractive object
high-frequency background
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Light Field Background Oriented Schlieren
[We
tzst
ein
et
al.
20
11a
,20
11b
] light field probe
transparent,
refractive object camera
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Light Field Background Oriented Schlieren[W
etz
ste
in e
t a
l. 2
011
a,2
011
b]
uniform illuminationlig
ht f
ield
pro
be
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Light Field Background Oriented Schlieren
waterclear cornstarch
[We
tzst
ein
et
al.
20
11a
,20
11b
]
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This subtitle is 20 points Bullets are blue They have 110% line spacing, 2 points before & after Longer bullets in the form of a paragraph are harder to
read if there is insufficient line spacing. This is the maximum recommended number of lines per slide (seven). Sub bullets look like this
Light Field Background Oriented Schlieren
[We
tzst
ein
et
al.
20
11a
,20
11b
]