1. A surveillance system comprising: a tracking module configured to process a first digital image data of at least one first image frame that is acquired through the use of a first image capturing device to track an object in the at least one first image frame and generate location information of the object being tracked using the first digital image data; a controller configured to generate a control signal based on the location information and to transmit the control signal to a second image capturing device to control the movement of the second image capturing device; and a detection module configured to process a second digital image data of at least one second image frame that is acquired through the use of the second image capturing device to detect a feature part of the object being tracked from the second digital image data.