Ganz Security ZN1A-2D6DTMZ71 GXi Series VCA Interface Manual - Page 114

An example of a correctly calibrated scene, Maintenance a reset button is provided.

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Page 114 highlights

Ganz GXi Series An example of a correctly calibrated scene VCA Interface Manual V3.05.31.18 Scene Maintenance The IPT does not use a continuous scene learning algorithm. Instead, a new background model is constructed whenever there has been no movement detected for a period of time. This period of time is tied to the Stationary Object Hold-on Time parameter in the Advanced VCA Settings page. • Where the IPT is being used to monitor a scene in which people are likely to be stationary for extended periods of time, such as a very slow-moving queue, increasing the Stationary Object Hold-on Time parameter may help prevent errors in the background model. • Where the scene is such that people are not expected to ever be stationary, decreasing the Stationary Object Hold-on Time parameter may help the algorithm to adapt to changes in the background more quickly. The IPT will adapt to any changes in background. However, if it has just been installed or its position adjusted, it will take some time for automatic scene learning to activate. Correspondingly, in the Scene Maintenance page, a reset button is provided. • Using this button will temporarily override the automatic scene learning and force the IPT to construct a new model from the current visible scene. • A learning message will appear. The scene must remain empty of people for the duration that this message is displayed. • If someone enters the scene during this time, the button must be pressed again when the scene is clear, and the process repeated. 05-2018-A 113 | P a g e

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05-2018-A
Ganz GXi Series
VCA Interface Manual V3.05.31.18
113 |
P ag e
An example of a correctly calibrated scene
Scene Maintenance
The IPT does not use a continuous scene learning algorithm. Instead, a new background model is
constructed whenever there has been no movement detected for a period of time. This period of time is
tied to the Stationary Object Hold-on Time parameter in the Advanced VCA Settings page.
•
Where the IPT is being used to monitor a scene in which people are likely to be stationary for
extended periods of time, such as a very slow-moving queue, increasing the Stationary Object
Hold-on Time parameter may help prevent errors in the background model.
•
Where the scene is such that people are not expected to ever be stationary, decreasing the
Stationary Object Hold-on Time parameter may help the algorithm to adapt to changes in the
background more quickly.
The IPT will adapt to any changes in background. However, if it has just been installed or its position
adjusted, it will take some time for automatic scene learning to activate. Correspondingly, in the Scene
Maintenance page, a reset button is provided.
•
Using this button will temporarily override the automatic scene learning and force the IPT to
construct a new model from the current visible scene.
•
A learning message will appear. The scene must remain empty of people for the duration that this
message is displayed.
•
If someone enters the scene during this time, the button must be pressed again when the scene
is clear, and the process repeated.