Errors in Lukas-Kanade
What are the potential causes of errors in this procedure?
•Suppose
ATA
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?