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Operation Manual
147
Figure 5-32 Time settings (2)
Step 5 Click
Save
.
Schedule
function is only available on single-channel cameras.
5.8 Setting IVS
This section introduces scene selection requirements, rule configuration, and global configuration
for IVS (intelligent video surveillance).
Basic requirements on scene selection are as follows.
●
The target should occupy no more than 10% of the whole image.
●
The target size in the image should be no more than 10 × 10 pixels. The size of abandoned object
in the image should be no less than 15 × 15 pixels (CIF image). The target height and width
should no more less than a third of the image height and width. The recommended target height
is 10% of the image height.
●
The brightness difference of the target and the background should be no less than 10 gray levels.
●
The target should be continuously present in the image for no less than two seconds, and the
moving distance of the target should be larger than its width and no less than 15 pixels (CIF
image) at the same time.
●
Reduce the complexity of surveillance scene as much as you can. Intelligent analysis functions
are not recommended to be used in scene with dense targets and frequent illumination change.
●
Avoid areas such as glass, reflective ground, water surface, and areas interfered by branch,
shadow and mosquito. Avoid backlight scene and direct light.
5.8.1 Global Configuration
Set global rules for IVS, including anti-disturb, depth of field calibration, and valid motion parameter
for targets.
Calibration Purpose
Determine corresponding relationship between 2D image captured by the camera and 3D actual
object according to one horizontal ruler and three vertical rulers calibrated by the user and the
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