Calibration plates are used in measuring applications to clean up optical distortion and ensure precise conversion from pixel to millimeter values. This takes place in the wenglor uniVision 3 software via the Image Calibration module.
In addition, a calibration plate enables simple and fast calibration in robot vision applications. This process also involves coordinate matching, thus eliminating the distortion caused by the optics. For precise calibration, the calibration plate should be completely in the camera’s visual field and cover at least half of the visual field. Paper-printed calibration patterns result in inaccurate calibration. Opaque panels (e.g. ZVZJ001) are suitable for incident light applications, transparent (e.g. ZVZJ005) for transmitted light applications.