Interference between different technologies

• MartyG

  • August 18, 2020 13:24
  • Edited

  Hi Amitelle1337  Yes, coded light cameras such as the RealSense SR300 / SR305 will interfere with each other.

  Microsoft's research labs once tested a "shake n sense" system for disrupting coded-light interference by using a vibrating motor (Kinect 1 was coded-light like the SR300's technology), though I do not know of anyone who got it to work with the SR300.

  https://www.microsoft.com/en-us/research/wp-content/uploads/2016/02/shake27n27Sense.pdf 

  The L515 can experience interference, though Intel's white paper document on L515 multiple-camera configuration explains that interference can be minimized / avoided if the L515s are positioned so that their projected patterns do not overlap.

  https://dev.intelrealsense.com/docs/lidar-camera-l515-multi-camera-setup 

  The 400 Series cameras do not interfere with each other but can interfere with non-RealSense infrared cameras, such as a built-in IR camera in a laptop.

  The 400 Series cameras and the T265 Tracking Camera do not interfere with each other.  This is because the T265 has an "IR-Cut" filter that prevents it from seeing the IR dot pattern projected by 400 Series depth cameras.  T265 should also be able to be paired with most depth cameras, not just RealSense ones.

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• Amitelle1337

  • August 18, 2020 17:10

  Thank you!

  Just to make sure I got everything right, I made a table for the real-sense cameras, I would like if you could verify it.

  

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• MartyG

  • August 18, 2020 21:03
  • Edited

  Stereo Depth cameras do not interfere with other Stereo Depth cameras of the 400 Series type, but my recollection is that they interfere with coded light.

  Coded light would interfere with coded light.

  I believe that any camera that emits IR (including Stereo Depth and Coded Light) would cause interference for L515 if those cameras projected their IR into the path of the L515's beam, as the L515 is sensitive to IR (including sunlight).

   

  The only pairings that will not generate interference are:

  - 400 Series and 400 Series

  - T265 and depth camera (as I said earlier, most depth cameras should work with it)

  - L515 and L515 (on the condition that their projected patterns are not overlapping)

  - T265 and T265

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• Amitelle1337

  • August 18, 2020 17:43

  Got it!

  Thank you very much!

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