Licensing of the software module for the Abandoned object detector VI (Street) in Windows OS

Licensing of the software module for the Abandoned object detector VI (Street) in Linux OS

Video stream and scene requirements for the Abandoned object detector VI (Street)

Image requirements for the Abandoned object detector VI (Street)

Hardware requirements for neural analytics operation

To configure the Abandoned object detector VI (Street), do the following:

  1. Go to the Detectors tab.

  2. Below the required camera, click Create… → Category: Trackers → Abandoned object detector VI (Street).

By default, the detector is enabled and set to detect abandoned objects.

If necessary, you can change the detector parameters. The list of parameters is given in the table:

ParameterValueDescription
Object features
Record objects trackingYesThe metadata of the video stream is recorded to the database by default. To disable the parameter, select the No value
No
Video streamMain streamIf the camera supports multistreaming, select the stream for which detection is needed
Other
EnableYesBy default, the detector is enabled. To disable, select the No value
No
NameAbandoned object detector VI (Street)Enter the detector name or leave the default name
Background accumulationYes

By default, scene background accumulation is enabled. To disable, select the No value

No
Background sensitivity (%)100

Controls the sensitivity to object contrast.
Specify the value as a percentage that is responsible for the detector ability to distinguish the level of object contrast relative to the background. The higher the value, the object with less contrast can be detected. The value must be in the range [0, 100]

Decoder modeAutoSelect a processing resource for decoding video streams. When you select a GPU, a stand-alone graphics card takes priority (when decoding with Nvidia NVDEC chips). If there is no appropriate GPU, the decoding will use the Intel Quick Sync Video technology. Otherwise, CPU resources will be used for decoding
CPU
GPU
HuaweiNPU
Detection area sensitivityMedium levelSelect the detection area sensitivity. The Medium level of sensitivity is selected by default. Additional neural network processing is applied in this area
Low level
Detection modeCPUSelect the processor for the detector operation (see Selecting Nvidia GPU when configuring detectors)
Nvidia GPU 0
Nvidia GPU 1
Nvidia GPU 2
Nvidia GPU 3
Detection sensitivity70Specify the level of the detection sensitivity. The value must be in the range [0, 255]
Event intersection time (sec)0.01Specify the time interval in seconds during which events won't be processed after successful detection when the event results match.
The parameter determines the level of intersection between new and previous events. If the specified value is exceeded, it is considered that these events refer to the same real object. The parameter is necessary to reduce the total number of events, since the analysis is performed continuously and the duration of real events can be several seconds. You must select the required value empirically. The value must be in the range [0, 1]
Frame size change640Specify the size to which the video is compressed before analysis. The value must be in the range [480, 960]
Ignore time (sec)5Specify the time interval in seconds during which events won't be processed after successful detection. The parameter is necessary to reduce the total number of events, since the analysis is performed continuously and the duration of real events can be several seconds. You must select the required value empirically. The value must be in the range [0, 9999]
Maximum brightness255Specify the maximum brightness of an object to trigger detection. The value must be in the range [0, 255]
Maximum object height (%)100Specify the maximum object height as a percentage of the frame height to get an event from the detector. If the object height is greater than specified, there won't be any events from the detector. The value must be in the range [0, 100]
Maximum object width (%)100Specify the maximum object width as a percentage of the frame width to get an event from the detector. If the object width is greater than specified, there won't be any events from the detector. The value must be in the range [0, 100]
Minimum object area (%)0Specify the minimum object area as a percentage of the frame area to get an event from the detector. If the object area is smaller, there won't be any events from the detector. The value must be in the range [0, 100]
Number of execution threads4Specify the number of execution threads. The value must be in the range [0, 100]
Number of frames processed per second12

Specify the number of frames processed per second. The value must be in the range [0.016, 100]

Attention!

The detector operates optimally with the default value for most use cases. Changing this value may reduce the detector's performance quality.

Object filterYesBy default, the neural network object filter is disabled. To enable, select the Yes value
No
Object frame intersection0Specify the percentage of the object frame intersection that must be merged into one object. The value must be in the range [0, 100]
Person filterYesBy default, objects near people aren't ignored. To ignore objects near people, select the Yes value
No
Ratio of object height to width90Specify the maximum level of object extension to get an event from the detector. The value must be in the range [0, 100]
Saving backgroundYes

By default, saving the scene background is enabled. To disable, select the No value

Attention!

Background files are automatically saved to the directory C:\ProgramData\VideoIntellect\. The size of this folder can quickly increase, potentially filling up all available space on the C drive. It is not possible to set a limit on the maximum volume of this directory, so it’s important to periodically check its contents and clear it if necessary.

No
Scene static (%)25Specify the scene static as a percentage. The higher the value of the parameter, the lower the scene dynamics. The value must be in the range [0, 100]
Scene update threshold10Specify the scene update threshold. If the number of changes in the frame exceeds the value of this parameter, the background is updated. The value must be in the range [0, 9999]
State saving interval0Specify the state saving interval in seconds. The value must be in the range [0, 9999]
Time for detection (sec)120Specify the time in seconds after which an object is considered abandoned. The value must be in the range [0, 9999]
TypeAbandoned object detector VI (Street)Name of the detector type (non-editable field)

In the preview window, you can specify the detection areas using the anchor points (see Configuring a detection area).

Note

  • For convenience of configuration, you can "freeze" the frame. Click the button. To cancel the action, click this button again.
  • The detection area is displayed by default. To hide it, click the button. To cancel the action, click this button again.

To save the parameters of the detector, click the Apply  button. To cancel the changes, click the Cancel  button.

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