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Equipment

What you need before installing Go2Kin.

Cameras

  • Up to 4 GoPro cameras. Developed and tested with the Hero 12 Black; any model supporting the Open GoPro HTTP API (Hero 9 or later) should work.
  • One battery and one SD card per camera.

🚧 TODO: recommended SD card spec (capacity, speed/endurance rating) and battery notes — e.g. does the camera charge over USB while connected?

Tripods and mounting

  • One tripod (or wall/truss mount) per camera.
  • Cameras must not move between extrinsic calibration and recording — mounts should be stable and hard to knock.

🚧 TODO: recommended tripod models, typical heights, and camera placement guidance for a 4-camera volume (photo/diagram of a working lab layout).

USB cables

  • One data-capable USB cable per camera, long enough to reach from each tripod to the PC. Cheap charge-only cables will not work.

🚧 TODO: recommended cable length, models and sellers — pull from Ryan's email.

🚧 TODO: confirm whether a (powered) USB hub works, or whether four separate ports on the PC are required.

PC

  • Windows 11 (tested on Windows 11 Enterprise LTSC 2024).
  • NVIDIA GPU strongly recommended. Pose estimation runs via CUDA; it will run on CPU, but far too slowly to be realistically usable.
  • Plenty of disk space on a fast drive — multi-camera video adds up quickly. See Create the data folder.

🚧 TODO: minimum/recommended specs — GPU model and VRAM, RAM, free disk per hour of collection.

Calibration board

A printed charuco board, generated from the Calibration tab (default size A1) and mounted on a rigid, flat surface.

  • Measure the actual printed square size — printers don't always scale exactly — and use the measured value in the board config.
  • Highly recommended: also print the "inverted" image and make a double-sided board (see the Caliscope documentation).

🚧 TODO: how to get a good board built — print shop vs in-house, mounting material (foam board / dibond / acrylic), matte lamination, approximate cost, and a supplier that has worked well.

Other

  • Nothing special is needed for synchronisation — two loud hand claps at the start of each recording do the job.
  • A tape measure, for positioning the board at the lab origin.

🚧 TODO: lab environment tips if relevant (lighting, background, flooring).