Checkerboard Calibration Plates

If you use the Feature Correspondence Calibration tool you may wish to use the calibration plate feature extractor provided by Cognex to create the feature correspondence list. The feature corresponder is discussed in Feature Correspondence Calibration. The Cognex feature extractor is designed to use images from a checkerboard calibration plate described in this section. You can use specifications included here to build your own checkerboard calibration plate, or you can use CAD files provided by Cognex to have a calibration plate vendor make one for you. Consult your CVL release notes for the location of these CAD files on your release media.

The following section describes the checkerboard calibration plate specifications, and the next section describes some calibration plate image requirements.