What kind of logic is motion detection?

Answered

Permanently deleted user

February 09, 2022 10:21

Hi, Support team.

I appreciate for your support.
I have a one question stated in the title.
I would like to know the difference in the sensitivity of motion detection.

Currently, I can select the degree from 0 to 9, but it is difficult to set because I do not know what kind of logic is used to detect it.

This was found by experimenting with human movements, but for example, even with the same sensitivity, the smaller the area of the setting area, the slower the detection sensitivity.

Can you tell me what kind of logic is used for motion detection?

If that is difficult, please give an example of 0-9 each and the relationship between the area of the set area and the sensitivity.

Sincerely,
Kai

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• 

  Norman

  • Network Optix team

  February 09, 2022 10:43 Edited

  Hi @...,

  The logic behind the motion detection is an algorithm that combines multiple requirements:

  • Contrast of the moving object
  • Volume of the moving object

  Since these are variables that are depending on the field of view, point of view and light levels, it is close to impossible to give some guidance that is useful, since these variables are different for each camera.

  I'll ask our technical writer if they can create a more detailed description of the motion detection algorithm, but in general, motion detection is used to reduce storage, while false positives are accepted.
  
  If false positives aren't acceptable, better solutions should be used like 3rd party (in-camera) analytics, AI based applications or, the most reliable option, physical PIR and/or laser and/or radar detectors. 

  JIRA-DOC-504

   

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  Permanently deleted user

  February 09, 2022 12:23

  Hi, Norman
  
  Thank you for your answer.
  I see.. Yeah, I got a rough outline.

  Also, I understand that the basic usage is to reduce the amount of stored data.

  Yes, I would like you to tell me mainly about sensitivity numbers and how to use them if there is something like a use case.
  
  
  Thank you,
  Kai
  
  

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