1. A method for acquiring multi-scale images, the method comprising: monitoring a field of view using a master camera; identifying a plurality of predefined regions of interest within the field of view; associating a slave camera with each one of the regions of interest, each slave camera comprising a moveable and controllable camera; for each region of interest: directing the master camera and the slave camera associated with that region of interest to a common position within that region of interest; generating tracking data on a common object located at the common position for both the master camera and the slave camera; using the tracking data from the master camera and the slave camera to generate a homography between the master camera and the slave camera; determining a height proportionality between the master camera and the slave camera for the common object; moving each slave camera in accordance with at least one known pattern; tracking points along the known pattern while the slave camera is moving; estimating the motion of the slave camera using the tracked points; and comparing the estimated motion of the tracked points to actual point locations from the known pattern and deriving the control parameters for each slave camera from the comparison of estimated points to actual points; using the master camera to identify an object of interest moving through the field of view; predicting future movement of the object of interest; identifying the predefined regions of interest that are overlapped by the predicted future movement; identifying slave cameras associated with the identified overlapped predefined regions of interest, and setting pan, tilt and zoom parameters for each identified slave camera so that a field of view associated with each identified slave camera is equal in size to its associated overlapped predefined region of interest; and using the homography, height proportionality and control parameters derived from the comparison of estimated points to actual points for each identified slave camera to track future movement of the object of interest through the identified overlapped predefined regions of interest.