CHAPTER 6 Flashcards
(9 cards)
1
Q
A
Illumination change
2
Q
A
Shape change
3
Q
A
Camera motion
4
Q
Basic Ideas
A
1- Look for distinct features in current frame.
2-For each feature
-Search for matching feature within neighbourhood in next frame.
-Difference in positions displacement.
-Velocity = displacement / time difference
5
Q
Stable (Good) Features
A
“flat”region:
no change in all
direction
“edge”:
no change along the
edge direction
“corner”:
significant change
in all directions
(uniqueness)
6
Q
READ IT
A
DONE
7
Q
READ IT
A
DONE
8
Q
Lucas-Kanade algorithm is often used with Tomasi’s feature
A
-Apply Tomasi’s method to detect good features.
-Apply LK method to compute d for each pixel.
-Accept d only for good features.
9
Q
READ IT
A
DONE
