A simple demo of Lucas-Kanade in pyramid (LKpyr) was created as
shown below: This demo assumes you have USB and a USB camera
installed with directShow. If you are running on Microsoft*
Windows* NT 4.0, this demo will only work if you have written your
own video capture source filter. Microsoft Windows 2000 is best
for this and all the rest of the demos.
Controls
[1] Start/Stop video capture
toggle. [2] Find a set of trackable
points (labeled by green dots) and track them. [3] Turn off the video image
and just show the tracked green points from [2]. [4] Change the size of the
video display window. [5] Adjust USB camera
parameters.
Limitations
This is just a simple, "hard coded" demo. We don't allow
you to change the pyramid depth nor allow you to adjust the
tracking parameters nor the thresholds for acceptable points
(minimum eigen value size). We do not monitor the quality of
the tracked points in this demo, thus when a point is occluded, it
often sticks near or on the occluding boundary. We will add user
parameter adjustments and point quality monitoring next rev. --
ran out of time for this demo, so sorry.
