BMP Image Sequences for Elliptical Head Tracking

Below are the BMP image sequences used in the head tracking demos, stored as gzipped tar files. Unfortunately, the original sequences without the ellipse overlaid are no longer available, but the ellipse can be removed manually to yield images very close to the original (This Matlab file may help).

BMP image sequence,
as gzipped tar file Description

15.2 MB An extended sequence showing pan, tilt, and zoom control; occlusion; 360-degree rotation; and head tilting.

15.5 MB Another extended sequence similar to the previous one, also showing the overlapping of two faces. Notice the flesh-colored board in the background.

1.1 MB Simultaneous occlusion, rotation, and translation.

2.9 MB Severe occlusion of subject by another person.

1.5 MB An attempt to distract the tracker with elliptical hands. On the fourth try, the tracker was distracted.

4.1 MB Tilting, rotation, and zooming.

5.8 MB Three villains unsuccessfully trying to steal the ellipse. Notice the relatively large search range.

2.7 MB The tradeoff between the different search ranges.

Red ellipse: The tracker originally ran with a 4x4x1 range but lost the subject because he accelerated too quickly.

Blue ellipse: Off-line, with an 8x8x1 search range the tracker was not thrown off the subject but was distracted by another person.

Green ellipse: Off-line, the tracker was successful with a 16x4x1 range.

0.9 MB Jerky, back-and-forth head motion. Since the file plays in real time, it gives some indication of the tracker's actual speed.

1.5 MB The subject walking behind a cubicle.

0.9 MB Because the histogram model had little hair, the tracker failed when the subject rotated.

5.9 MB This time the villains were more successful.

2.9 MB More rotation and occlusion.

1.5 MB More rotation and distraction.

1.4 MB More rotation and distraction.

1.5 MB More rotation.

1.4 MB More rotation.

BMP image sequence, as gzipped tar file	Description
15.2 MB	An extended sequence showing pan, tilt, and zoom control; occlusion; 360-degree rotation; and head tilting.
15.5 MB	Another extended sequence similar to the previous one, also showing the overlapping of two faces. Notice the flesh-colored board in the background.
1.1 MB	Simultaneous occlusion, rotation, and translation.
2.9 MB	Severe occlusion of subject by another person.
1.5 MB	An attempt to distract the tracker with elliptical hands. On the fourth try, the tracker was distracted.
4.1 MB	Tilting, rotation, and zooming.
5.8 MB	Three villains unsuccessfully trying to steal the ellipse. Notice the relatively large search range.
2.7 MB	The tradeoff between the different search ranges. Red ellipse: The tracker originally ran with a 4x4x1 range but lost the subject because he accelerated too quickly. Blue ellipse: Off-line, with an 8x8x1 search range the tracker was not thrown off the subject but was distracted by another person. Green ellipse: Off-line, the tracker was successful with a 16x4x1 range.
0.9 MB	Jerky, back-and-forth head motion. Since the file plays in real time, it gives some indication of the tracker's actual speed.
1.5 MB	The subject walking behind a cubicle.
0.9 MB	Because the histogram model had little hair, the tracker failed when the subject rotated.
5.9 MB	This time the villains were more successful.
2.9 MB	More rotation and occlusion.
1.5 MB	More rotation and distraction.
1.4 MB	More rotation and distraction.
1.5 MB	More rotation.
1.4 MB	More rotation.

BMP Image Sequences for Elliptical Head Tracking

Last updated by Stan Birchfield on August 7, A. D. 1998