Structure [from] Motion
Given a set of feature tracks,
estimate the 3D structure and 3D (camera)
motion.
Assumption: orthographic projection
Tracks:
(
u
fp
,
v
fp
),
f
:
frame,
p
:
point
Subtract out mean 2D position…
u
fp
=
i
f
T
s
p
i
f
: rotation,
s
p
: position
v
fp
=
j
f
T
s
p