1. A gesture recognition interface system that determines input gestures based on changes in relative locations of an input object to initiate device inputs associated with the input gestures, the system comprising: at least one light source positioned to illuminate a background surface in a first light spectrum to generate a light contrast difference between the input object and the background surface; a display device configured to display at least one calibration pattern on the background surface in a second light spectrum in response to a calibration command; at least one camera configured to receive images of the background surface in both the first light spectrum and the second light spectrum; and an automated calibration component configured to issue the calibration command and to associate features of the at least one calibration pattern in the received images with known physical locations.