Processing masks define where Symphony can track objects. By default, the entire scene is covered in the yellow mask, meaning everything in the field of view of the camera will be analyzed. In some cases you may want to remove certain portions of the screen from analysis (such as a neighbor's property, or a swaying tree which is causing false alarms).
• Select the Analyze option to define the yellow mask.
• Select the Ignore option to erase areas of the yellow mask where objects should be ignored.
• The Size slider adjusts the pen thickness.
When privacy masks are defined, operators can validate alarms but cannot identify people in live or historical video. Privacy masks are transmitted with decorations in live and historical video streams with every key frame (or every eighth frame for MJPG). They are also saved to disk.
Privacy masks are permission-driven. Users denied the View Private Video permission will always see the privacy mask applied. System administrators granted the permission will never see applied privacy masks.
You can define dynamic and static privacy masks per device for cases where privacy is a concern.
Static
|
Static privacy masks blur the area of a drawn region for static areas such as entrance ways. |
Dynamic |
Dynamic privacy masks dynamically blur motion tracking boxes for moving objects such as people walking. |
% Surrounding Object |
Percentage of the area the privacy blur is applied to beyond the tracking box. Applies only to dynamic privacy masks. |
Mask Delay (seconds) |
Number of seconds to remember the position of tracked objects and continue blurring their previous position. Applies only to dynamic privacy masks. |
Blur Amount |
Amount of blur applied to the area. Applies to both static and dynamic privacy masks. |
Drawing Mode |
Highlight areas that you want to Hide or Show. Use the Size slidebar to change the size of the drawing tool. |