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Version: 2.0 (alpha)

Find and read your output

Every recording, calibration or motion capture, gets its own folder in freemocap_data/recordings in your home folder. To jump to a recording's folder, open it in the Playback tab and click Open folder in file explorer.

What's in a recording folder​

freemocap_data/recordings/
└── {recording_name}/
├── synchronized_videos/ # Original videos, one per camera
│ └── timestamps/ # When each frame was captured
├── annotated_videos/ # Videos with the tracked points drawn on
├── output_data/ # The motion capture data
│ ├── *.npy
│ ├── *.csv
│ └── freemocap_data_by_frame.parquet
├── saved_data/ # A second copy of the data, split by body part
├── 3d_models/ # FBX and BVH files, after a Blender export
├── tracker_schema.json # Which points were tracked and how they connect
├── {name}_camera_calibration.toml
├── {name}_info.json # Camera settings used for the recording
└── {name}.blend # The Blender scene, after a Blender export
A processed recording's folder open in Finder, showing the 3d_models, annotated_videos, output_data, saved_data and synchronized_videos folders, the calibration file, the Blender scene and tracker_schema.json
A processed recording's folder in Finder, after a Blender export.FreeMoCap 2.0.0-alpha.25
  • synchronized_videos/ holds your original footage, lined up in time across cameras.
  • annotated_videos/ holds the same footage with the tracked points drawn on top. It's the quickest way to check tracking by eye.
  • output_data/ holds the motion capture data in three formats: .npy for Python, .csv for spreadsheets, and freemocap_data_by_frame.parquet, which has every point of every frame in one table. See array shapes and units for what each file holds.
  • saved_data/ holds a second copy of the data, split by body part into csv/ and npy/ folders, with the trajectory names and metadata in info/. Two README files in the folder explain how it is laid out.
  • {name}_camera_calibration.toml is the calibration used for this recording.
  • {name}.blend and 3d_models/ appear only after a Blender export.

Other locations​

WhatWhere, in your home folder
All recordingsfreemocap_data/recordings/
Your latest calibrationfreemocap_data/calibrations/last_successful_camera_calibration.toml
Log filesskellylogs_data/logs/

Next steps​