3D video for VR?

• MartyG

  • June 24, 2020 06:47
  • Edited

  Hi Park0kyung0won  There are no RealSense camera models with two RGB sensors.  The 400 Series cameras typically have one RGB sensor and two infrared sensors (a left and right pair).

  On the D415 model you can obtain a color stream from the left infrared imager.  On the D435 models though, both infrared sensors output monochrome color.

  Aligning the infrared channel to the color channel has traditionally been very difficult though, because one of the stream types in the alignment should be the depth stream (e.g depth to color).  Depth is already aligned to infrared because the depth frame is generated from infrared.

  A workaround emerged though where infrared to color sensor alignment could be achieved by aligning all three streams (color, depth and infrared).

  https://github.com/IntelRealSense/librealsense/issues/5093 

  It should be considered though that the D415 has a slower camera shutter than the D435 models and the new D455 (which have fast global shutters) and so trying to capture movement faster than human walking pace may result on blurring and other motion artifacts on the image.

  Regarding VL42 support: RealSense's documentation for compiling librealsense for Linux states that the Linux build configuration is presently configured to use the V4L2 backend by default.

  https://dev.intelrealsense.com/docs/compiling-librealsense-for-linux-ubuntu-guide 

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• Park0kyung0won

  • June 24, 2020 06:50

  Thank you so much for taking your time

  to write this kind kind reply

  This is so helpful!

   

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• MartyG

  • June 24, 2020 07:07

  You are very welcome!

  I would add that on the D415 model, the RGB and IR sensors use the same sensor component, so they have the same field of view (FOV) size, whereas on the D435 models the RGB and infrared sensors have different FOV sizes.

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