Optical flow equation
•
Q:
how many unknowns and equations per
pixel?
–
•
Intuitively, what does this constraint
mean?
–
–
The component of the flow in the gradient
direction is determined
–
The component of the flow parallel to an edge
is unknown
This explains the Barber Pole illusion
http://www.sandlotscience.com/Ambiguous/barberpole.htm
(Seitz)
A:
u and v are unknown, 1 equation
