Patent ID: 7796154
Filing Date: 2010-09-14
Classification: H04N

Abstract:
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: moving each slave camera in accordance with at least one known pattern; 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.