Theia

Theia is a 3D & Animation tool that provides markerless motion capture using AI. It streamlines motion capture workflows with accurate data and zero instrumentation for research, sport, and movement assessment.

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At a glance

Pricing

Paid · Enterprise · Custom

Free tier

API

Skill level

Technical

About

What is Theia?

Theia3D is an AI-powered markerless motion capture software designed to reconstruct 3D human movement from synchronized multi-camera video. It eliminates the need for physical markers, offering a fast, accurate, and non-invasive solution for biomechanics, sports science, and research labs. The software tracks 124 keypoints with high precision (<1cm, 3°) and integrates seamlessly with existing workflows, including Visual3D, by exporting standard .c3d files. Theia3D supports various hardware setups and can be used in both lab and outdoor environments, provided adequate lighting and camera synchronization. It is validated by peer-reviewed research, ensuring comparable kinematic and kinetic results to traditional marker-based systems. Theia3D simplifies the entire motion capture process from calibration to analysis, making it accessible for a wide range of professionals.

Best used for

Ideal for biomechanics researchers who need to conduct detailed 3D motion analysis, sports scientists who want to optimize athlete performance, and professionals assessing functional movement. Especially valuable for those requiring accurate data without the constraints of traditional marker-based systems, enabling natural movement capture in diverse environments.

Common actions

capture motion

analyze biomechanics

track human movement

assess performance

integrate data

Capabilities

Key features

Markerless motion capture
3D human pose estimation
124 keypoint tracking
.c3d file export
Visual3D integration
Multi-camera support
Deep learning algorithms

Target Audience

professordata scientistresearcherfitness coach

Integrations

visual3d

Pricing & Plans

Paid · Enterprise · Custom

Not publicly disclosed. Check theiamarkerless.com for current pricing.

FAQs

How many cameras are required for accurate results with Theia3D?

Theia3D requires a minimum of six synchronized cameras for research-grade accuracy. However, for larger capture volumes or more dynamic movement studies, eight or more cameras are recommended to ensure optimal data quality and comprehensive coverage of the subject's movement.

Can Theia3D be used outdoors for data capture?

Yes, Theia3D is designed to function effectively in both laboratory and outdoor environments. It has been successfully utilized in settings like sports fields and natural running trails, provided there is adequate lighting and proper camera synchronization to maintain data integrity.

What kind of computer hardware is recommended for optimal performance with Theia3D?

For optimal performance, Theia3D requires a system equipped with a modern NVIDIA GPU (such as the GeForce RTX 50 Series), a multi-core processor, and sufficient storage for large multi-camera video files. A dedicated SSD and a high-speed network are also recommended to handle data processing efficiently.

Does Theia3D integrate with other biomechanics software like Visual3D?

Yes, Theia3D is specifically designed for direct integration with Visual3D. The software outputs standard .c3d files that automatically open in Visual3D with pre-mapped biomechanical models, allowing for immediate analysis and reporting without additional conversion steps.

Is Theia3D validated by scientific research?

Yes, Theia3D has undergone validation through multiple peer-reviewed studies. These studies compare its accuracy against traditional marker-based systems, demonstrating that Theia3D achieves comparable kinematic and kinetic results across various applications, including gait, running, and clinical populations.

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