vision-calibration 0.1.4

Python bindings for calibration-rs end-to-end camera calibration

vision-calibration-py

Python bindings for calibration-rs.

This crate exposes high-level calibration workflows from vision-calibration:

• planar intrinsics
• single-camera hand-eye
• rig extrinsics
• rig hand-eye
• laserline device

Build locally

maturin develop -m crates/vision-calibration-py/Cargo.toml

Python package

The Python package name is vision_calibration.

import vision_calibration as vc

print(vc.__version__)

# Build Python-native dataset/config objects with docstrings:
obs = vc.Observation(
    points_3d=[(0.0, 0.0, 0.0), (0.1, 0.0, 0.0), (0.1, 0.1, 0.0), (0.0, 0.1, 0.0)],
    points_2d=[(100.0, 100.0), (200.0, 100.0), (200.0, 200.0), (100.0, 200.0)],
)
dataset = vc.PlanarDataset(views=[vc.PlanarView(observation=obs)] * 3)
config = vc.PlanarCalibrationConfig(
    max_iters=80,
    robust_loss=vc.robust_huber(1.0),
)

result = vc.run_planar_intrinsics(dataset, config)
print(result.mean_reproj_error)

Runnable Python examples

Python workflow examples live in crates/vision-calibration-py/examples/ and mirror the Rust examples from crates/vision-calibration/examples/.

Install detector dependencies for real-image examples:

./.venv/bin/python -m pip install "vision-calibration[examples]"

Run all:

for f in crates/vision-calibration-py/examples/*.py; do ./.venv/bin/python "$f"; done

Run individual examples:

./.venv/bin/python crates/vision-calibration-py/examples/planar_synthetic.py
./.venv/bin/python crates/vision-calibration-py/examples/planar_real.py
./.venv/bin/python crates/vision-calibration-py/examples/stereo_session.py
./.venv/bin/python crates/vision-calibration-py/examples/stereo_charuco_session.py
./.venv/bin/python crates/vision-calibration-py/examples/handeye_synthetic.py
./.venv/bin/python crates/vision-calibration-py/examples/handeye_session.py
./.venv/bin/python crates/vision-calibration-py/examples/rig_handeye_synthetic.py
./.venv/bin/python crates/vision-calibration-py/examples/laserline_device_session.py

Notes:

• planar_real.py, stereo_session.py, stereo_charuco_session.py, and handeye_session.py run detector-based corner extraction from real images using calib-targets.
• Low-level serde payload schemas remain available in vision_calibration.types for advanced interop.