Milestone Basis+ 6.5 - Manual (Page 47)

Milestone XProtect Basis+ 6.5; Administrator’s Manual
The Noise Sensitivity slider determines how much each pixel must change before it is regarded as
motion. Insignificant changes, which should not be regarded as motion, are considered acceptable
noise, hence the name of the slider. With high noise sensitivity, very little change in a pixel is
required before it is regarded as motion.
Tip: If you find the concept of noise sensitivity difficult to grasp, try dragging the slider to the
left towards the High position: The more you drag the slider towards the High position, the more of
the preview image becomes highlighted. This is because with high noise sensitivity even the
slightest change in a pixel will be regarded as motion.
Areas in which motion is detected are highlighted in the preview image. Select a slider position in
which only detections you consider motion are highlighted.
As an alternative to using the slider, you may specify a value between 0 and 256 in the field next
to the slider to control the noise sensitivity setting.
Motion Sensitivity
The Motion Sensitivity slider determines how many pixels must change in the image before it is
regarded as motion.
The selected motion sensitivity level is indicated by the black vertical line in the motion level
indication bar below the preview image. The black vertical line serves as a threshold: When
detected motion is above the selected sensitivity level, the bar changes color from green to red,
indicating a positive detection.
As an alternative to using the slider, you may specify a value between 0 and 10,000 in the field
next to the slider to control the motion sensitivity setting.
Define Exclusion Regions Window
The Define Exclusion Regions window lets you disable motion detection in specific areas of a
camera’s images. Disabling motion detection in certain areas may help you avoid detection of
irrelevant motion, for example if the camera covers an area where a tree is swaying in the wind or
where cars regularly pass by in the background.
The Define Exclusion Regions window, with
an exclusion area highlighted in blue
You access the Define Exclusion Regions window by clicking the Exclude Regions... button in the
Camera Settings for [Device Name] [Camera Name] window (see page 39).
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