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数据板块包含受试者在步行测试过程中，安置于人体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。该数据以受试者为单位划分为多个子文件夹，每个子文件夹内均包含多组数据文件，分别对应不同传感器采集位置的IMU数据。此类文件通常涵盖以下测量内容：用于表征IMU在三维空间中姿态的方向四元数、沿x、y、z三轴的线加速度、绕x、y、z三轴的旋转角速度，以及磁力计采集的磁场读数。具体的文件与传感器布设位置会因实验设置与研究目标的不同而存在差异。IMU数据是后续处理与分析的核心输入，可用于步态事件检测、运动学计算，以及开发用于步态分析的机器学习模型等场景。