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Tip

Video stream and scene requirements for the Crowd estimation VA

Image requirements for the Crowd estimation VA

Hardware requirements for neural analytics operation

To configure the Crowd estimation VATo create the detection tool, do the following:

  1. Go to the
    2. Detection Tools
  2. Detectors tab.

  3. Below the required camera, click Create… → Category: Retail → Crowd

    4. Estimation

  4. estimation VA.

By default, the detection tool detector is enabled and set to count crowds of people.

If necessary, you can change the settings of the detection tool detector parameters given in the table:

an eventThe Estimation
ParameterValueDescription
Object features
Record mask to archiveYesBy default, the recording of the mask to the archive is disabled. To record the sensitivity scale of the detection tool detector to the archive (see Displaying information from a detection tool detector (mask)), select the Yes value
No
Video streamMain streamIf the camera supports multistreaming, select the stream for which detection is needed
Other
EnableYesBy default, the detection tool detector is enabled. To disable, select the No value
No
NameCrowd Estimation estimation VAEnter the detection tool detector name or leave the default name
Decoder modeAuto

Select a processing resource for decoding video. When you select a GPU, a stand-alone graphics card takes priority (when decoding with NVIDIA 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
Mode



CPU

Select the a processor for the operation—CPU or NVIDIA GPU operation (see Selecting Nvidia GPU when configuring detection toolsdetectors).

Note
titleAttention!

If you specify other processing resource than the CPU, this device will carry the most of computing load. However, the CPU will also be used to run the detection tooldetector.

Nvidia GPU 0
Nvidia GPU 1
Nvidia GPU 2
Nvidia GPU 3
Number of alarm objects1

Specify the number of objects at which an event occurs. The value must be in the range [0; , 10000]

Number of frames processed per second0.1017

Specify the number of frames for the detection tool detector to process per second. The value must be in the range [0.016; , 100]

Trigger upon count
Greater than or equal to threshold to threshold value

Select when you want to generate

events.

The Crowd

estimation VA will generate events from the threshold value set in the Number of alarm objects field

Less than or equal to threshold value
Change in readings
TypeCrowd Estimation estimation VAName of the detection tool detector type (non-editable field)

By default, the entire frame is the detection area. In the preview window, you can specify the detection areas using the anchor points points Image Modified (see Configuring the Detection Zonea detection area).

To save the parameters of the detection tooldetector, click the Apply Image Modified button. To cancel the changes, click the Cancel Image Modified button.

It is possible to display the sensor and the number of objects in the monitored area in the Surveillance window on the layout (see Displaying the number of detected objects).

Image Modified