How can i calibrate with the most accuracy?

How can I accurately calibrate 2 Azure Kinect devices on my own? Is it necessary to perform both internal and external calibration or is one sufficient? Should I use Aruco or Charuco markers, or both? Thank you.

@KimElven, when using Depthkit Studio and just two sensors (no external cameras), you only need a calibration fiducial with ArUco markers as specified in our Depthkit Studio Hardware Requirements documentation.

Do get an accurate calibration, make sure you capture sensor alignment samples from various positions around the volume - always facing the chart directly toward the midpoint between the two sensors. I usually capture around 25-30 samples per pair of neighboring sensors.

Then, adjust the calibration refinement sliders until the metrics are as high as possible.