（2）Origin calibration

• After the 6 - point calibration is completed, the coordinate origin will be displayed in the 3D view. If you need to update the position of the origin, please open the calibration panel, click the gear button, and set the calibration axis to the Y - axis. Open the reference video calibration panel, set the calibration type to "Origin Calibration", and click the Start Calibration button.

1. Place the L - shaped rod in the field. Pay attention to align the long axis with the position that needs to be updated. When the Y - axis is upward, the long axis of the L - shaped rod is the positive direction of the Z - axis, and the short side is the positive direction of the X - axis.
2. Click the freeze frame, and then click the Marker points on the L-shaped rod in sequence in the images of each camera according to the prompts in the "Calibration Record".

3. After completion, click "Add Frame". At this time, the calibration record will prompt that the L calibration is completed. Switch to the 3D view, and the origin position has been updated.

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Change hint type Precautions:

• Click in the order prompted in the calibration record, and click the Marker points at positions "1, 2, 3, 4" in sequence.
• If you can't clearly see the Marker points of the L-shaped rod, you can use the middle mouse button to zoom in or out on the image in the reference video and then click on the Marker points.
• When clicking on the Marker points, try not to click in the wrong position or off - center. Click on the exact center of the Marker points in the image.