Motion detection : get result

Answered

Julien ROMANO

March 24, 2022 06:09

Hi,

reading a lot of post about motion detection,

I see on my several systems that AI box don't classify correctly during dark scene (front light of car etc)

I would like to use motion detection to make a first trigger to switch on lights near camera and after AI box classify, 

but motion detection trigger (even with smaller number setting) with rain (long red lines), so lights will always blinking during night (switch off after a timer)

is it possible to get the "matrix" of all activated squares by motion detection to make my own detection algo ? Is it possible to set a "volume"/number of activated square (like 70% of the cam picture) ?

 

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  Norman

  • Network Optix team

  March 24, 2022 07:56

  Hi Julien ROMANO,

  Currently, there are no default options to create dependencies in the rules. The current only option is the use of a 3rd party application like Node-RED as mentioned in THIS topic.

  The matrix for the server side motion detection is based on 2 values.

  The first value is about how much average pixel light should be changed in motion square to detect motion and the second value is about how much motion squares should be to detect motion, and dependent on the first value.

   

   

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  Julien ROMANO

  March 24, 2022 17:04

  Hi Norman

  thank you for your quick answer !

  yep, I already use node-red. On the article, there is no link or info about how get matrix for server side motion detection. I don't get any info on HTTP API doc.

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  Norman

  • Network Optix team

  March 25, 2022 07:53

  Hi Julien ROMANO,

  The is no public matrix available for the motion detection.

  You should create 2 rules to begin with;

  Rule 1: Motion Detection >>> Do HTTP request, aimed at the Node-RED server
  Rule 2: Generic Event from AIBox >>> Do HTTP request, aimed at the Node-RED server

  Create the dependency in Node-RED, and if both criteria are met; send an HTTP request from Node-RED to Nx.

  Rule 3: Generic Event from Node-RED >>> the desired Action.

   

   

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  Julien ROMANO

  April 13, 2022 20:28

  hi Norman

  ha ok, but why use motion AND AI to trigger an action : AI is far enough efficient to detect human/car (only on lighting)

  If i use motion to switch on lights, my house will be blinking all the night : I need to be more precise.

  I would like get triggered by Nx if 70% (or other value) of motion on the picture

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