IMU Visualization Tool

A Python-based tool for visualizing IMU (Inertial Measurement Unit) orientation data in 3D space. This tool is specifically designed for biomechanical analysis, allowing visualization of multiple IMUs simultaneously.

Features

• Real-time 3D visualization of IMU orientations
• Support for multiple IMUs (up to 4) in separate subplots
• Standard biomechanical coordinate system representation
• Comprehensive documentation of biomechanical concepts
• Smooth animation at 30 Hz display rate

Requirements

• Python 3.x
• NumPy
• Pandas
• Matplotlib
• SciPy

Installation

1. Clone the repository:

git clone https://github.com/YOUR_USERNAME/imu-visualization.git
cd imu-visualization

2. Install dependencies:

pip install numpy pandas matplotlib scipy

Usage

1. Place your IMU data files in the data/rec/ directory
2. Run the visualization script:

python vis_3D_rot_scikit_V4.py

Data Format

The tool expects CSV files in Xsens DOT format with the following structure:

• First 7 rows: Metadata
• Header row: Column names
• Data rows: Time series of quaternions and sensor data

Coordinate System

• X-axis (Red): Forward direction
• Y-axis (Green): Left direction
• Z-axis (Blue): Upward direction