MR4 2025 Fall Release: vCAT & Advanced Force Analytics

Virtual Calibration Adjustment Tool (vCAT) — BETA. Precision When Perfect Posture Isn’t Possible. Calibration is a critical step for IMU motion capture, but ideal neutral posture isn’t always achievable. Clinical populations may have postural constraints, and even healthy athletes often carry habitual offsets like anterior pelvic tilt or knee flexion. The Virtual Calibration Adjustment Tool (vCAT) introduces a flexible, visual way to quickly refine these inaccuracies through an intuitive software-driven workflow and toolset. Noraxon is the only provider in the IMU motion capture market to offer a calibration adjustment workflow. vCAT introduces a capability that simply doesn’t exist in other inertial systems, giving researchers and practitioners a level of model correction traditionally reserved for high-end optical labs. Why It Matters. vCAT brings a modern, intuitive approach to calibration correction that allows users to correct avatar alignment using a specific frame in the recording. This improves joint-angle accuracy and offers a practical solution for assessing patients or populations who cannot stand neutrally. How It Works. Use the integrated workflow to capture specific poses or select any frame from the calibration recording to perform corrections from, Jump-start adjustments with markerless-assisted pose proposals, Manually fine-tune corrections with landmark dragging and individual segment rotations, Apply changes instantly on the avatar with no recalculation delays, Store all corrections directly in the recording’s calibration metrics, Access full undo/redo support during the correction session.