Method for controlling privacy mask display
OwnerSung Seo, Kyun Kang +3inventors
InventorsSung Seo, Kyun Kang, Gang Lee, Mang Kim, Byung Park
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Abstract
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.
Claims18
A method for controlling a mask display, comprising:
- detecting a rotation operation in a panning direction of a monitoring camera;
- recognizing a tilt angle of the monitoring camera for the rotation operation;
- and
- differently shifting a mask overlapped with an image frame according to the recognized tilt angle.
A method for controlling a mask display, comprising:
- recognizing. a tilt angle of a monitoring camera when rotation of the monitoring camera is detected in a panning direction;
- compensating for a rotation angle of the panning direction according to the recognized tilt angle;
- and
- shifting a mask overlapped with an image frame according to the compensated rotation angle of the panning direction.
An apparatus for controlling a privacy mask display for a monitoring device, comprising:
- a monitoring camera configured to perform monitoring by pan and tilt operations;
- a privacy mask generator configured to generate a privacy mask for a requested position;
- and
- a controller coupled to the monitoring camera and the mask generator and configured to detect the monitoring camera rotation operation in a panning direction, recognize a tilt angle of the monitoring camera for the rotation operation and differently shift the privacy mask overlapped with an image frame according to the recognized tilt angle.
Dependencies are inferred from the claim text.