Intraoral Scanner Calibration Target With Sensor-Based Positioning

The patent employs a dynamic calibration target that moves along a predetermined path rather than using static objects. The calibration target includes a moving component that traverses through multiple positions, allowing the intraoral scanner to capture calibration data at various locations. This dynamic approach maintains calibration accuracy over time by continuously verifying the scanner's spatial coordination across different regions, while the automated movement mechanism keeps the calibration process simple and repeatable.

The calibration target is designed to be self-moving along a predetermined path without requiring external control systems. The moving component automatically traverses through calibration positions based on its own mechanical structure, eliminating the need for complex external actuators or control mechanisms. This self-service approach maintains high calibration accuracy through systematic coverage of calibration points while keeping the overall device complexity manageable by integrating the movement function within the calibration target itself.

The calibration target is segmented into multiple distinct feature portions, each with unique geometric characteristics that can be detected by sensors. These segmented features are distributed at different positions along the movement path, allowing the system to determine the calibration target's position and orientation at multiple locations. The segmentation approach improves calibration accuracy by providing rich positional information while keeping device complexity manageable through modular feature design rather than requiring complex sensor arrays.