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Vicon calibration supported

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David PAGNON 2023-08-22 12:52:00 +02:00 committed by GitHub
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@ -242,13 +242,14 @@ N.B.: Markers are not needed in Pose2Sim and were used here for validation
If you already have a calibration file, set `calibration_type` type to `convert` in your `Config.toml` file.
- **From Qualisys:**
- Export calibration to `.qca.txt` within QTM
- Copy it in the `calibration` folder
- Copy it in the `calibration` Pose2Sim folder
- set `convert_from` to 'qualisys' in your `Config.toml` file. Change `binning_factor` to 2 if you film in 540p
- **From Optitrack:** Exporting calibration will be available in Motive 3.2. In the meantime:
- Calculate intrinsics with a board (see next section)
- Use their C++ API [to retrieve extrinsic properties](https://docs.optitrack.com/developer-tools/motive-api/motive-api-function-reference#tt_cameraxlocation). Translation can be copied as is in your `Calib.toml` file, but TT_CameraOrientationMatrix first needs to be [converted to a Rodrigues vector](https://docs.opencv.org/3.4/d9/d0c/group__calib3d.html#ga61585db663d9da06b68e70cfbf6a1eac) with OpenCV. See instructions [here](https://github.com/perfanalytics/pose2sim/issues/28)
- **From Vicon:**
- Not possible yet. [Want to contribute?](#how-to-contribute)
- Copy your `.xcp` Vicon calibration file to the Pose2Sim `calibration` folder
- set `convert_from` to 'vicon' in your `Config.toml` file. No other setting is needed.
### Calculate from scratch