D455 with strobed light

• MartyX Grover

  • April 07, 2021 11:58
  • Edited

  Hi Alessio Stella  I do not have information regarding use of strobe lights with D455 specifically, though its use with the global-shuttered D435 has been discussed in the links below.

  https://github.com/IntelRealSense/librealsense/issues/2000#issuecomment-403839230

  https://github.com/IntelRealSense/librealsense/issues/5788

   

  Given that the D455 has a global shutter on its RGB sensor whilst the D435 RGB is a slower rolling shutter, I understand that the information in those links may not match completely the experience on D455.

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• Alessio Stella

  • April 07, 2021 12:53

  Thanks. To use a strobed light proficuosly I would need a pin that give the info on when to turn the lights on, in sync with the RGB exposure. I guess that is not available, even inside on the board (not recommended, I understand)?  I understand it's a little problematic.

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• MartyX Grover

  • April 07, 2021 13:26
  • Edited

  I recall a RealSense user who wanted to explore the possibility of analyzing exact 'strobe length' by connecting an oscilloscope to one of the set of hardware sync pins that are accessible on the outside of the camera (there is a small removable cover on the top of the 400 Series cameras).

  https://support.intelrealsense.com/hc/en-us/community/posts/360033769593/comments/360008495654

  RealSense users have tended to use the Sync pin (pin 5) for signals, since other pins such as the power pin produced too much noise.

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