DS1092-121
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Advice for correct auto tracking use
General warnings
•
The tracking function should mainly be used in indoor environments. Outdoor use is highly problematic: the
variety of objects (leafs, flags, litter, etc.) which may be moved by the wind makes use unreliable.
•
Provide the best lighting possible in the detection zone: in poor lighting conditions, the inevitable presence of
noise on the image makes greyscale variations extremely critical. In poor lighting conditions, Easy Dome IV may
easily loose the tracked object.
•
If IR illuminators are use, remember that:
o
Easy Dome IV must be programmed to operate in B/W because the Slow Shutter will make tracking
unreliable in colour mode
o
the lighting entirely covers the frame where motion is tracked, possibly by restricting the range of
action of the Easy Dome IV in Tracking mode.
•
Avoid background objects in the frame which could trick the motion detector, such as for example Venetian
blinds, gates, doors with grid and objects with very marked, contrasting contours. A chequerboard background
is certainly the worst condition for satisfactory operation.
•
Do not use the privacy zone function in frames where auto tracking is used: the privacy zone can trick the auto
tracking function.
•
Do not use the auto tracking function if the object to be tracked and/or monitored moves too fast.
•
Take into account the fact that, during day/night switching, tracking may be affected by the sudden change of
viewing from colour to B/W.
Similarly, in very poor lighting conditions, the presence of greater image noise may also affect tracking
reliability.
In both cases, the
TARGET LOST SETUP
option permits automatic restore of the correct operating conditions in
the case of loss of the target object.
Recommended control parameters
TARGET SIZE: select SMALL particularly in poor lighting conditions to improve performance.
SENSITIVITY: most false alarms are caused by the tracking of unexpected objects. For this reason, it is preferable to
select low sensitivity.
ZOOM SETTING: it is advisable to use the lowest possible zoom values. Excessive detail makes object tracking difficult
(the movement must be fastener and consequently the risk of loosing the object is much higher).
WAIT TIME: particularly, in the case of poor lighting conditions or frames with interference, it is preferable to set the
lowest possible time to prevent the Easy Dome IV from constantly tracking unexpected objects (e.g. “video noise” in the
frame).
TRACKING SPEED: the AUTO setting should always be preferred, unless the object to be tracked does not always
move at low, constant speed.
BOUNDARY LIMIT: it is strong advised to delimit the tracking zone, avoiding to include unnecessary parts in the frame.
Summary of Contents for Easy Dome IV 1092 Series
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