Material: alumina, non-reflective surface Optical Float Glass.
Main Features:
High precision processing technology, low thermal expansion coefficient, high precision (±0.01mm).
High precision calibration tool for vision field
Three-dimensional image measurement, three-dimensional reverse engineering, three-dimensional matching, three-dimensional reconstruction, etc. mainly obtain the data of camera calibration results through calibration software.
Function:
For the correction of lens distortion, determine the physical size and conversion relation between pixels, and determine the space objects, at some point on the surface of the three-dimensional geometry and the interrelation between the corresponding points in the image, need to establish the geometric model of camera imaging, for precision measurement, distortion of lens itself is inevitable, calibration is used to improve the performance of the high precision measuring and application testing order to achieve the achieve satisfactory precision
Usage:
Most software supports solid dots or squares as landmarks. In the process of high-precision camera calibration, feature points are mostly used as reference points to accurately extract the center position through graph fitting. The centroid caused by projection is eliminated by known calibration template parameters.