Checkerboard alumina calibration plate diffuse reflection non-reflective 12*9 square visual optical correction plate

1. Features of the calibration board:
Adopt high-precision processing technology, low thermal expansion coefficient, high precision (±0.01mm), and various sizes can be customized.
2. Scope of application:
Research units or special high-precision calibration tools in the field of vision, 3D image measurement, 3D reverse engineering, stereo matching, 3D reconstruction, etc., mainly obtain the data of camera calibration results through calibration software.
3. Function:
In order to correct lens distortion, determine the conversion relationship between physical size and pixels, and determine the relationship between the three-dimensional geometric position of a point on the surface of a space object and its corresponding point in the image, a geometric model of camera imaging needs to be established. In other words, the distortion of the lens itself is inevitable, and the calibration is used to improve the application performance of high-precision measurement and detection to achieve satisfactory accuracy.
4. Use:
Most software supports the use of solid dots or squares as markers. In the process of high-precision camera calibration, most of the feature points are used as reference points, and the center position is accurately extracted through graphic fitting.
And eliminate the centroid caused by projection through the known calibration template parameters.

Packing: 1PC