Intruder detection through trajectory analysis in monitoring and surveillance systems

A security monitoring system comprising:

• at least one camera for monitoring a path of an individual inside and/or outside a structure;
• a recorder for recording the monitoring of the individual;
• trajectory analysis means for computing a trajectory of the path of the individual from the recorded monitoring;
• comparison means for comparing the trajectory against known trajectories;
• and
• an alarm system for transmitting an alarm signal based on the comparison, wherein the at least one camera is a video camera and the recorder records video segments of the path of the individual inside and/or outside the structure.

A security monitoring system comprising:

• at least one camera for monitoring a path of an individual inside and/or outside a structure;
• a recorder for recording the monitoring of the individual;
• trajectory analysis means for computing a trajectory of the path of the individual from the recorded monitoring;
• comparison means for comparing the trajectory against known trajectories;
• an alarm system for transmitting an alarm signal based on the comparison;
• a database for storing image data for each authorized individual of the structure;
• and
• a recognition system for comparing images of the individual from the at least one camera with the stored image data in the database and for determining if the individual is one of the authorized individuals.

A method for monitoring a structure, the method comprising the steps of:

• monitoring a path of an individual inside and/or outside the structure;
• recording the monitoring of the individual;
• computing a trajectory of the path of the individual from the monitoring;
• comparing the trajectory against known trajectories;
• determining whether to transmit an alarm signal based on the comparison;
• storing image data for each authorized individual of the structure;
• and
• comparing images of the individual from at least one camera with the stored image data in a database and determining if the individual is one of the authorized individuals.