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The object total size shall not be more than 10% of the whole video.
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The object size on the video shall not be more than 10pixels*10 pixels. The abandoned object size shall be more than
15pixels*15 pixels (CIF resolution). The object width shall not be more than 1/3 of the video height and width. The
recommended height is 10% of the video.
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The object and the background brightness different shall be more than 10 grey levels. The object shall remain on
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the video for more than 2 seconds. The moving distance is larger than its own width and shall not be smaller than
15pixels (CIF resolution).
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The surveillance environment shall not be too complicated. The IVS function is not suitable for the environment of too
many objects or the changing light.
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The surveillance environment shall not contain glasses, reflection light from the ground, and water. Free of tree
branches, shadow, mosquito and bugs. Do not use the IVS function in the backlight environment, avoid direct sunlight.
Step 1 Select Main Menu > AI > > Parameters > IVS.
The IVS interface is displayed. See Figure 4-132.
Step 2 Select a channel from the dropdown list.
Click Add and then set corresponding rule. See Figure 4-133.
Figure 4-132
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