User's Manual

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Figure 5-89 Smart plan (2)
Step 5 Click Save.
5.5.5 IVS
Basic Requirements for the Scene
● The target size shall not exceed 10% of the image.
● The pixel of the target shall be no less than 10×10; the pixel of abandoned object shall be no less
than 15×15 (CIF image); the width and height of the target shall be no more than 1/3 of the image.
It is recommended that the height of the target is 10% of the image.
● The brightness difference between the target and the background is no less than 10 gray values.
● The target shall be present in the image for no less than 2 consecutive seconds, and the moving
distance shall be larger than its width and no less than 15 pixels (CIF image).
● Try to reduce the complexity of monitoring scenes. It is not recommended to enable IVS in scenes
with dense targets and frequent light changes.
● Try to avoid the following scenes: scenes with reflective surfaces such as glass, bright ground or
water; scenes that disturbed by tree branches, shadows or winged insects; scenes that against
light or under direct light exposure.
Before using the function, you need to set presets in advance. For setting methods, see "5.3.2.1
Preset."