A computer implemented method and system for multi-occupant motion tracking and monitoring may include partitioning out of a controlled space one or more interior regions, tracking one or more occupants within the controlled space by collecting a sequence of images of the controlled space, determining from the sequence of images one or more contiguous pixel groupings corresponding to non-persistent motion (referred to as blobs), and generating one or more bounding boxes that encompass each of the contiguous pixel groupings.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH/DEVELOPMENT
 This invention was made with government support under Grant Number EE0003114 awarded by the U.S. Department of Energy. The U.S. government has certain rights in the invention.
 This application claims priority to U.S. Provisional Application No. 61/509,567 entitled "APPARATUS AND METHOD FOR MULTI-OCCUPANT MOTION TRACKING" filed on 19 Jul. 2011 for Ran Chang et al., the entirety of which is herein incorporated by reference. This application is also related in subject matter to PCT Application No. PCT/US12/41673, entitled "SYSTEMS AND METHODS FOR SENSING OCCUPANCY", filed on Jun. 8, 2012 for Aravind Dasu et al., the entirety of which is herein incorporated by reference.