Kinesis

MyoKinesis is the first release of MyoSapiens SDK, focusing on human motion retargeting - mapping motion capture data onto unified, anatomically consistent human kinematics.

What is Motion Retargeting?

Motion retargeting is the process of transferring motion data from one character or format to another while preserving the motion's essential characteristics. MyoKinesis handles the complex task of:

• Rig normalization - Converting between different skeleton structures
• Joint mapping - Mapping markers to standardized joint definitions
• Anthropometric scaling - Adjusting for different body sizes and proportions
• Motion preservation - Maintaining the quality and characteristics of the original motion

Key Features

Unified Skeleton Representation

MyoKinesis outputs a standardized skeletal representation that works across different tools and engines. This means:

• Consistent joint definitions - Same joint names and hierarchy regardless of input format
• Anatomically accurate - Based on human biomechanics and physiology
• Engine agnostic - Works with Unity, Unreal, Blender, and other tools

Input Format Support

Currently supports:

• C3D files - Standard motion capture format
• Markerset XML - Configuration files defining marker-to-joint mapping

Future releases will support additional formats.

Output Format

Produces .npz files (NumPy compressed archive) containing standardized joint angles and joint names. See File Formats for complete details on the output format.

Use Cases

MyoKinesis is useful for:

• Animation pipelines - Convert mocap data for use in animation software
• XR avatars - Drive realistic avatars in virtual and augmented reality
• Robotics/agent simulation - Create human-like motion for robots and AI agents
• Performance analysis - Standardize motion data for biomechanical analysis
• Fitness and sports apps - Analyze and visualize human movement
• Game development - Retarget motion to game character rigs

How It Works

1. Upload - Upload your C3D motion capture file and markerset configuration
2. Process - MyoKinesis processes the data, mapping markers to joints and applying anthropometric scaling
3. Output - Download standardized joint angles ready for use in your application

See the Retargeting Tutorial for a complete walkthrough.

Next Steps

• Retargeting Tutorial - Complete workflow example
• Retarget Parameters - Configuration options
• File Formats - Input and output format details
• Why MyoSapiens? - Learn about our approach