Method for controlling privacy mask display

摘要

A method for controlling a privacy mask display. If a monitoring camera performs a panning operation such that a privacy mask overlapped with a monitored image frame should be shifted, a current tilt angle is recognized. The privacy mask can be differently shifted for the same panning operation according to the recognized current tilt angle, for example, on the basis of different privacy mask shift values for different tilt angles. Therefore, embodiments of methods and apparatus can prevent a specific or designated object displayed in the monitored image frame from being exposed to others because of pan/tilt operations (Fig. 1).