IMU Data

The IMU data section contains raw data obtained from inertial measurement units (IMUs) placed on different body segments of individuals during walking trials. The data is organized into sub-folders corresponding to each subject, and within each sub-folder, there are multiple files representing the IMU data captured from various sensor locations. These files typically include measurements of:Orientation Quaternions: Representing the orientation of the IMU in 3D space.Acceleration: Linear acceleration in three axes (x, y, z) Angular Velocity: Rotational velocity around three axes (x, y, z) Magnetic Field: Readings from the magnetometer.The specific files and sensor locations may vary depending on the experimental setup and research objectives. The IMU data serves as the primary input for subsequent processing and analysis, including gait event detection, kinematic calculations, and developing machine learning models for gait analysis.

本数据集的IMU数据部分包含受试者在行走测试过程中，安装于不同身体节段的惯性测量单元（Inertial Measurement Unit，IMU）所采集的原始数据。该数据集按受试者划分为多个子文件夹，每个子文件夹内包含多个文件，分别对应不同传感器部署位置采集的IMU数据。此类文件通常包含以下测量项：姿态四元数：用于表征IMU在三维空间中的姿态；加速度：三维x、y、z轴方向的线加速度；角速度：三维x、y、z轴方向的旋转角速度；磁场强度：磁力计采集的传感器读数。具体的文件构成与传感器部署位置会因实验设置与研究目标的不同而有所差异。该IMU数据可作为后续处理与分析的核心输入，涵盖步态事件检测、运动学计算以及用于步态分析的机器学习模型开发等多项任务。