标题： 从颈部到头部：用于头部姿态估计的生物阻抗传感 显示英文标题

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

摘要： 我们提出NeckSense，一种新颖的可穿戴系统，用于头部姿态跟踪，该系统利用多通道生物阻抗传感，采用轻质、项链式结构的柔软、干电极。 NeckSense捕捉颈部周围组织阻抗的动态变化，这些变化由头部旋转和细微的肌肉激活所调节。 为了稳健地估计头部姿态，我们提出了一种深度学习框架，将解剖学先验信息，包括关节约束和自然头部旋转范围，整合到损失函数设计中。 我们使用当前最先进的姿态估计模型作为真实值，在7名参与者上验证了NeckSense。 我们的系统在各种头部运动中通过留一法交叉验证方法实现了每顶点平均误差25.9毫米，证明了一种紧凑的、无需视线的生物阻抗可穿戴设备可以提供与最先进的视觉方法相当的头部跟踪性能。 显示英文摘要

摘要： We present NeckSense, a novel wearable system for head pose tracking that leverages multi-channel bio-impedance sensing with soft, dry electrodes embedded in a lightweight, necklace-style form factor. NeckSense captures dynamic changes in tissue impedance around the neck, which are modulated by head rotations and subtle muscle activations. To robustly estimate head pose, we propose a deep learning framework that integrates anatomical priors, including joint constraints and natural head rotation ranges, into the loss function design. We validate NeckSense on 7 participants using the current SOTA pose estimation model as ground truth. Our system achieves a mean per-vertex error of 25.9 mm across various head movements with a leave-one-person-out cross-validation method, demonstrating that a compact, line-of-sight-free bio-impedance wearable can deliver head-tracking performance comparable to SOTA vision-based methods.