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Video stream and scene requirements for the Person-Based Privacy Maskingbased privacy masking

Hardware requirements for neural analytics operation

To configure the Person-

...

based privacy masking detector, do the following:

  1. Go to the

...

  1. Detectors tab.
  2. Below the required camera,

...

  1. click Create…  Category: Poses Person-

...

  1. based privacy masking.

By default, the

...

detector is enabled and set to mask a person's head.

If necessary, you can change the

...

detector parameters. The list of parameters is given in the table:

ParameterValueDescription
Object features
Record mask to archiveYesBy default, the recording of the mask to the archive is
disabled
enabled. To
record mask to the archive (see Displaying information from a detection tool (mask)), select the Yes value
disable, select the No value
No
Video streamMain streamIf the camera supports multistreaming, select the stream for which detection is needed. Selecting a low-quality video stream allows reducing the load on the
Server
server
Second stream
Other 
EnableYesThe
detection tool
detector is enabled by default. To disable
the detection tool
, select the No value
No
NamePerson-
Based Privacy Masking
based privacy maskingEnter the
detection tool
detector name or leave the default name
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
are used for decoding
CPU
GPU
HuaweiNPU
Number of frames processed per second1Specify the number of frames that the
detection tool
detector will process per second. The value must be in the range
 
[0.016; 100]
TypePerson-
Based Privacy Masking
based privacy maskingName of the
detection tool
detector type (non-editable field)
Advanced settings
Number of measurements in a row to trigger detection3Specify the minimum number of frames on which the
detection tool
detector must detect objects to generate an event. The value must be in the range [1, 20]
Segmenting network file
Select

Specify a neural network file.

The standard neural networks for different processor types are located in the C:\Program Files\Common Files\AxxonSoft\DetectorPack\NeuroSDK directory.

 You

 You don't need to select the standard neural networks in this field, the system will automatically select the required one. If you use a custom neural network, specify the path to the file.

info
Note
title
NoteTo ensure the correct operation of the neural network
Attention!
  • You cannot specify the network file in Windows OS. You must place the neural network file locally, that is, on the same server where you install Axxon One.
  • For correct neural network operation on Linux OS, place the corresponding file
must be located
  • locally in the /opt/AxxonSoft/DetectorPack/NeuroSDK directory or in the network folder with the corresponding access rights.
  • If you use a standard neural network (training wasn't performed in operating conditions), we guarantee the overall accuracy of 80-95% and the percentage of false positives of 5-20% (see Data collection requirements for neural network training).
Basic settings
Neural network
Detection modeCPU

Select the

neural network

detector operation mode

 

(see

 
detection tools

detectors).

Note
titleAttention!
  • It may take several minutes to launch the algorithm
on NVIDIA GPU
  • on NVIDIA GPU after you apply the settings. You can use caching to speed up future launches (
see 
other
  • another processing resource than the CPU, this device
will carry the
  • carries most of the computing load. However, the CPU
will
  • is also
be
  • used to run the
detection tool
  • detector.
  • Starting
with 
  • with Detector Pack
 3
  •  3.11, Intel HDDL and Intel NCS aren’t supported.
  • Starting with Detector Pack 3.14, Intel Multi-GPU and Intel GPU 0-3 are supported.


Nvidia GPU 0
Nvidia GPU 1
Nvidia GPU 2
Nvidia GPU 3
Intel
HDDL
GPU
Intel NCS (not supported)
Intel Multi-GPU
Intel GPU 0
Intel
NCS
GPU 1
Intel GPU 2
Intel GPU 3
Intel HDDL (not supported)
Mask
BodyYesBy default, the
detection tool
detector masks only a person's head. To mask other parts of the body, select the Yes value for the corresponding parameters 
No
FeetYes
No
ForearmsYes
No
HandsYes
No
HeadYes
No
HipsYes
No
ShinsYes
No
ShouldersYes
No

By default, the entire frame is a detection area. 

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

Configuring the Person-Based Privacy Masking based privacy masking is complete. 

Selected body parts of all persons will be are hidden in the frame. For a user group with limited permissions to view masked video (see Creating and configuring roles Roles), the mask is displayed on the video image of the selected camera in the Detection Tools and Detectors and Hardware sections, on the layouts, in the archive, and when exporting. For the admin user group, the mask is displayed only on the video image of the selected camera in the Detection Tools Detectors and Hardware sections, and when exporting, if the View masked video checkbox is clear (see Standard video recordings export).
Image Modified