

Included are supplemental materials to the CVPR 2008 paper, Finding

People in Archive Films through Tracking, by Xiaofeng Ren at TTI-Chicago.



Nine video sequences are presented, four from Casablanca (1942), three from

Kind Hearts and Coronets (1949), and two from The Great Dictator (1940), all in

grayscale. Tracks in these sequences are indexed by color.  The videos are

encoded using the xvid/div4 codec.



There are a few things worth noting:



1. We only show (automatically selected) top-ranked tracks.  While some people

   are missed/below the threshold in these videos, we find most people with very

   few false positives.  Please refer to the paper for a complete precision-recall

   evaluation of the temporal detection performance on full-length films.



2. The focus of this work is on finding people; our tracker is fairly simple.

   While the tracker demonstrates many interesting capabilities by using face

   detection, there are many improvements possible.  For instance, if a person is

   occluded for some time, the tracker usually starts a new track when he

   re-appears. We choose not to deal with this problem because: (1) it has little

   effect on the detection performance; and (2) it concerns more of high-level

   reasoning on dynamics and person identity, hence beyond the current scope of

   this work.



Thank you for your interests and if you have any questions or comments, please contact

Xiaofeng Ren at xren@tti-c.org.















