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The Abandoned object detector operates only with the Object tracker detector. If the requirements for the Object tracker are met (see | ||
Video stream and scene requirements for the Object tracker and its sub-detectors |
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The Abandoned object detector can operate only with the Object tracker detector. |
, Image requirements for the Object tracker and its sub-detectors), the following performance parameters of the Abandoned object detector are guaranteed:
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Before you create and configure the Abandoned object detector, do the following:
- Create the Object tracker detector and set its general parameters (see Configuring the Object tracker).
- Configure some parameters of the Object tracker detector as follows:
Parameter Value Description Auto sensitivity Yes If auto sensitivity is enabled, sensitivity adjustments for moving and abandoned objects are not applied. To apply manual sensitivity adjustments, it is necessary to disable the auto sensitivity Long-time abandoned object detection Yes If you enable this and the Enable filter parameter (see Configuring the Object tracker), it can reduce the number of false positives during detection Abandoned object detection Yes Objects abandoned for 10 seconds or longer will be detected Alarm on object's max. idle time in area 60 Specify the time in seconds—if the object remains idle for the time longer than the specified, it will be detected. This value must be in the range [15, 1800].
Info title Note This parameter is used only for the Long-time abandoned object detection. It is recommended to select the parameter value starting from 15.
Abandoned object detection sensitivity 20 For this parameter to work, it is necessary to first disable the Auto sensitivity parameter.
Set the sensitivity for abandoned object detector and long-time abandoned object detection in the range [1, 100].
Info title Note This parameter depends on the lighting conditions and must be chosen empirically. It is recommended to select the parameter value starting from 20.
- Save the detector parameters by clicking the Apply
button.
To create the Abandoned object detector, below the Object tracker detector, click Create... → Abandoned Object.
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| Parameter | Value | Description | |||||
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| Other | |||||||
| Enable | Yes | By default, the detector is enabled. To disable, select the No value | |||||
| No | |||||||
| Name | Abandoned Object | Enter a detector name or leave the default name | |||||
| Type | Abandoned Object | Detector type name (non-editable field) | |||||
| Basic settings | |||||||
| Maximum object height | 100 | Set the maximum height of the object that must generate an event from the detector , as a percentage of the frame size. The value must be in the range [0.05, 100] | |||||
| Maximum object width | 100 | Set the maximum width of the object that must generate an event from the detector , as a percentage of the frame size. The value must be in the range [0.05, 100] | |||||
| Minimum object height | 0,1 | Set the minimum height of the object that must generate an event from the detector , as a percentage of the frame size. The value must be in the range [0.05, 100] | |||||
| Minimum object width | 0,1 | Set the minimum width of the object that must generate an event from the detector , as a percentage of the frame size. The value must be in the range [0.05, 100] | |||||
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| Object type | Any | Select this value if it is necessary to detect both taken and abandoned objects | |||||
| Abandoned | Select a value if it is necessary to detect an object that has disappeared from the monitored area and crossed its borders | ||||||
| Taken | |||||||
By default, the entire frame is a detection area. If necessary, in the preview window, you can reduce the detection area (see Configuring a detection area) and/or set one or more skip ignore areas (see Configuring a skip the ignore area).
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