Errors in Lukas-Kanade
What are the potential causes of errors in this procedure?
•
Suppose A
T
A is easily invertible
•
Suppose there is not much noise in the image
When our assumptions are violated
•
Brightness constancy is
not
satisfied
•
The motion is
not
small
•
A point does
not
move like its neighbors
–
window size is too large
–
what is the ideal window size?