eLine Technology ETV_v7 - Manual (Page 73)

ETV System Server Software - User’s Guide Page 73
Mask Settings are used to show sections of the image where objects create motion in areas that we are not
interested in analyzing. Typically, masked areas are near the edges of the image, for example trees or traffic.
How to Mask
To do this, simply draw on the video. A semi-transparent overlay will be drawn over the video;
this marks the masked region. To clear a mask, click and draw on the masked region it.
Invert Swaps masked and clear regions.
Set All Masks the entire region.
Draw Region Click and drag to draw a rectangle which will fill in as masked area.
Clear Clears all masked regions.
Freeze Video Freezes the Video, click again to return to live video.
Obstacle Settings
Obstacle Settings are used to show sections of the image that are blocked by permanent, narrow objects
between the area monitored and the camera. When obstacle masks are configured, the analytics engine
understands that an object will disappear behind this area and then reappear on the other side. In some
situations, light fixtures, poles, or signs could be obstacles in an image. Click to highlight permanent
obstacles. The analytics engine will track objects that disappear on one side of the obstacle and then appear
on the other side.