The BMP image sequences used in the head tracking demos are available as a single file: headtracker_sequences.zip (64 MB). Alternatively, to download an individual sequence, click on one of the links below.
Unfortunately, the original sequences without the ellipse overlaid were never saved, so the sequences above were obtained by removing the ellipse using a median filter. Some artifacts around the perimeter of the head are visible.
from: http://www.ces.clemson.edu/~stb/research/headtracker/seq/
椭圆人头跟踪bmp图像序列 BMP Image Sequences for Elliptical Head Tracking
原文:http://www.cnblogs.com/GarfieldEr007/p/5535948.html