Pivot Calibration

Pivot Calibration

Estimating the location of a tracked tool’s tip relative to its Dynamic Reference Frame (DRF) and localizing a specific point in a tracking system’s coordinate frame are fundamental tasks in image-guided procedures. This is typically achieved using pivot calibration. Below are 3 formulations of pivot calibrations:

• Algebraic One Step
• Algebraic Two Steps
• Sphere Fitting with no essential bias