14. The system of claim 13 further comprising means for locating and tracking a person in the monitored area.
13. A system for identifying predetermined persons in a monitored area, the persons having established viewing or listening habits during past days, the system comprising: an historical record of the viewing or listening habits of the predetermined persons during past days; means for forming, from the historical record, a first probability estimate that predetermined persons are present in the monitored area; means for storing a plurality of reference facial image signatures wherein each of the reference facial image signatures corresponds to a predetermined person; means for capturing a current image of the monitored area; means for extracting a current facial image signature from the current image; means for comparing the current facial image signature with the reference facial image signatures to form a second probability estimate that predetermined persons are present in the monitored area; and, means for identifying predetermined persons from the first and second probability estimates.