infra red tracking question

    Jun 13 2006 | 12:20 am
    Hi all,
    I'm doing a project involving motion-tracking using a camera which tracks an infra-red beam. No problems there, as long as you are only tracking one thing.
    My question is: is it possible to motion track two or more different things (people, in this case) using IR at the same time? I need to be able to distinguish between the two people. In other words, it's important to know that person A is at one particular x-y coord and that person B is at another, and to follow their movements separately. Is this possible using IR?
    Hope this question makes sense. Thanks in advance for your help.