Computing device and method for calibrating star probe of image measuring machine

A method for calibrating a star probe of an image measuring machine, the star probe comprising a plurality of probe heads, the method comprising:

• configuring probe configuration information for the star probe according to a probe configuration file stored in a storage device of the image measuring machine;
• determining whether each of the probe heads needs to be calibrated according to the probe configuration information of the star probe;
• selecting one of the probe heads to be calibrated from the star probe, and calibrating a radius value of the selected probe head;
• determining whether there is a deviation between a center point of the selected probe head and a focus of a camera lens of the image measuring machine;
• calibrating the deviation between the center point of the selected probe head and the focus of the camera lens, and generating probe calibration information according to the calibrated radius value and the selected deviation;
• and
• generating a star probe model for the star probe according to the probe configuration information and the probe calibration information, and displaying the star probe model on a display device of the image measuring machine.

A non-transitory computer-readable storage medium having stored thereon instructions that, when executed by at least one processor of an image measuring machine, causes the processor to perform a method for calibrating a star probe of the image measuring machine, the star probe comprising a plurality of probe heads, the method comprising:

• configuring probe configuration information for the star probe according to a probe configuration file stored in a storage device of the image measuring machine;
• determining whether each of the probe heads needs to be calibrated according to the probe configuration information of the star probe;
• selecting one of the probe heads to be calibrated from the star probe, and calibrating a radius value of the selected probe head;
• determining whether there is a deviation between a center point of the selected probe head and a focus of a camera lens of the image measuring machine;
• calibrating the deviation between the center point of the selected probe head and the focus of the camera lens, and generating probe calibration information according to the calibrated radius value and the selected deviation;
• and
• generating a star probe model for the star probe according to the probe configuration information and the probe calibration information, and displaying the star probe model on a display device of the image measuring machine.