Calibration Transfer

## Calibration Transfer
Convert a generated calibration calculation to obtain calibration for another plane.
Usually used when the two planes needing calibration conversion are relatively small, and calibration can be generated by moving once to acquire four points through only one calibration object. Equivalent to the integration of N-point calibration that previously required multiple steps to complete.

## Module Principle

![](/media/202603/2026-03-13_111635_7903770.05955758469560157.png)
Input the departure image point array and arrival image point array, calculate the departure image point array as the mechanical points of the arrival plane, thereby having a one-to-one correspondence between the image point array and the mechanical point array on the arrival plane, thereby calculating the calibration, which is the integration of the previous N-point calibration.
![](/media/202603/2026-03-13_112044_7750550.09248194668361864.png)

## Usage Method

### Pre/Post-Sequence Modules
#### Departure Camera Photographing
1. Departure camera acquires image, circle extraction acquires departure image points A1, B1, C1, D1..., and records.

![](/media/202603/2026-03-13_112224_6530120.453542297288973.png)

#### Arrival Camera Photographing

2. Arrival camera acquires image, acquires arrival image points A2, B2, C2, D2 ....
3. Combine the recorded departure image points A1, B1, C1, D1 ... and arrival image points A2, B2, C2, D2 .. into arrays, generating mechanical transfer.

![](/media/202603/2026-03-13_112240_1896300.040743937818075504.png)
## Parameter Configuration Description

![](/media/202603/2026-03-13_112132_5258800.47399488888731955.png)

Calibration Data: Generated calibration.
Mechanical Departure Pose / Mechanical Arrival Pose: Departure and arrival positions of mechanical transfer.
Departure Image Point Array: Image point group captured on the calibrated plane.
Arrival Image Point Array: Image point group needing calibration.

## Precautions
1. Note that the calibration plane and the plane when using calibration are of the same height, need to consider tray, calibration object thickness, etc.
2. During the mechanical transfer process, when placing the object, object sliding may occur.
3. Points used to generate calibration should be evenly distributed in various positions of the image, especially in the case of large field of view calibration.
4. The points of the departure camera and the arrival camera must correspond one-to-one, and be the same point on the calibration object.
5. The bottom camera needs X-axis mirroring when used.
6. The plane used for calibration needs to be the same height as the plane when using calibration.

[【Attachment】Calibration Transfer Example Project.rar](/media/attachment/2026/03/%E6%A0%87%E5%AE%9A%E8%BD%AC%E7%A7%BB%E7%A4%BA%E4%BE%8B%E5%B7%A5%E7%A8%8B.rar)

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Click here to jump to the corresponding Chinese manual page: [Calibration Transfer](/doc/130)