Published October 7, 2025 | Version v1
Conference proceeding Open

From Neck to Head: Bio-Impedance Sensing for Head Pose Estimation

Authors/Creators

Description

We present NeckSense, a novel wearable system for head posetracking that leverages multi-channel bio-impedance sensing withsoft, dry electrodes embedded in a lightweight, necklace-style formfactor. NeckSense captures dynamic changes in tissue impedancearound the neck, which are modulated by head rotations and subtlemuscle activations. To robustly estimate head pose, we propose adeep learning framework that integrates anatomical priors, includ-ing joint constraints and natural head rotation ranges, into the lossfunction design. We validated NeckSense on 7 participants usingthe current state-of-the-art pose estimation model as ground truth.Our system achieves a mean per-vertex error of 25.9 mm across var-ious head movements with a leave-one-person-out cross-validationmethod, demonstrating that a compact bio-impedance wearable candeliver head-tracking performance comparable to state-of-the-artvision-based methods.

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_ISWC25_From_Neck_to_Head__Bio_Impedance_Sensing_for_head_pose_monitoring (8).pdf

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Additional details

Funding

European Commission
STELEC - Sustainable Textile Electronics 101162257

Dates

Available
2025-10