Supporting Documentation FAQ


Page Overview

Theia 3D Basics:

Link: https://youtu.be/ezhZhUZZqCA 

This tutorial video provides an overview of the basics when using Theia Markerless motion capture products, and should be your first stop in understanding Theia Markerless technology. It provides an overview of the Theia Markerless data collection and processing framework, with an overview of the main functionality of Theia3D that accomplishes this framework.


Data Collection Principles:

Link: https://youtu.be/I5cTaQjn-2c 

This Theia Markerless tutorial video describes the key factors that should be considered when setting up a capture volume and collecting data, including camera position, orientation, settings, subject, attire, and movement considerations.


Recording Intrinsic Lens Calibrations:

Link: https://youtu.be/19EWW3Qk-Cs 

This Theia Markerless tutorial video provides step-by-step instructions and tips for recording high quality intrinsic lens calibration trials, which are required to determine intrinsic lens parameters.


Recording Extrinsic Chessboard Calibrations:

Link: https://youtu.be/IgjZKh7kcHA 

This Theia Markerless tutorial provides step-by-step instructions and tips for recording high quality extrinsic chessboard calibration trials, which are required to determine the extrinsic camera system parameters and run analyses in Theia3D. This is the preferred extrinsic calibration method, over object calibration. If you are using a third-party wand calibration method, you do not need to record and process extrinsic chessboard calibrations.


Recording Extrinsic Object Calibrations:

Link: https://youtu.be/ofBnt8kGViY 

This Theia Markerless tutorial video provides step-by-step instructions and tips for recording high quality extrinsic object calibration trials. Note: This is not the recommended method of calibration, and instead we recommend that you use the chessboard calibration procedure.


Theia3D User Interface:

Link: https://youtu.be/w9gVEry6Zqc 

This Theia3D tutorial video describes the layout of the Theia3D application user interface and where its many functions and tools are located.


Organizing Videos:

Link: https://youtu.be/SjbOULS6kVs 

This Theia3D tutorial video describes how to use the Organize Videos tool within to format unorganized video data, which is the very first step in processing any markerless data in Theia3D.


Processing Intrinsic Lens Calibrations:

Link: https://youtu.be/mB5f5i6hpso 

This Theia3D tutorial video describes how to use the Lens Calibration tool within Theia3D to process intrinsic lens calibration trials.


Processing Extrinsic Chessboard Calibrations:

Link: https://youtu.be/nVTXobmJWhQ 

This Theia3D tutorial video describes how to use the Chessboard Calibration tool within Theia3D to process extrinsic chessboard calibration trials. This is the preferred extrinsic calibration method, over object calibration. If you are using a third-party wand calibration method, you do not need to record and process extrinsic chessboard calibrations.


Processing Extrinsic Object Calibrations:

Link: https://youtu.be/PhN-tF6_pG4 

This Theia3D tutorial video describes how to use the Object Calibration tool within Theia3D to process extrinsic object calibration trials. Note: This is not the recommended method of calibration, and instead we recommend that you use the chessboard calibration procedure.


Adjusting Chessboard Calibration Reference Frames:

Link: https://youtu.be/7SPj8j0WWVs 

This Theia3D tutorial video provides an overview of how to adjust a global reference frame manually, after processing an extrinsic chessboard calibration trial. This may be useful if the reference frame is in an undesired location.


Assigning Calibration Files:

Link: https://youtu.be/DY6PmVaImG8 

This Theia3D tutorial video summarizes the process for assigning calibration files to movement data using the Assign Calibration Tool in Theia3D. This is considered best practice, and is a requirement for batch processing movement trials.


Analyzing Data:

Link: https://youtu.be/oZnnwb_8zlU 

This Theia3D tutorial video provides an overview of the basic steps required to analyze a single movement trial from start to finish, using the sidebar quick tool buttons. This includes loading video data, loading a calibration trial, running the analysis, and saving analysis outputs.


Analyze Dropdown Menu:

Link: https://youtu.be/drNfF3T1REc 

This Theia3D tutorial video provides a summary of the Analyze dropdown menu and each of the individual analysis steps it contains. This can be useful when running individual analysis steps.


Display Dropdown Menu:

Link: https://youtu.be/Viy9ywxF__g 

This Theia3D tutorial video describes the visualization and display options that can be toggled using the buttons in the Display dropdown menu.


Video Enhancement Tool:

Link: https://youtu.be/mYuKrTVbUbU 

This Theia3D tutorial video describes the Video Enhancement tool and how it can be used to modify videos before processing them in Theia3D.


Saving:

Link: https://youtu.be/uxi0Q6KNvcs 

This Theia3D tutorial video provides an overview of the different saving options available in Theia3D.


Settings:

Link: https://youtu.be/POkn3jxyilE 

This Theia3D tutorial video describes the settings that can be adjusted within Theia3D, under the Settings dropdown menu.


TMBatch User Interface:

Link: https://youtu.be/1AiWndrQ5Pc 

This TMBatch tutorial video describes the layout of the TMBatch companion application user interface and where its functions and tool are located.


Managing Preferences:

Link: https://youtu.be/85dWbSFl1rM 

This TMBatch tutorial video describes the process used to modify, save, copy, and paste preferences files within the TMBatch companion application. The practices described in this video are best practices for managing preferences within TMBatch, and are critical for batch processing movement data.


Setting up a Batch:

Link: https://youtu.be/P-pDp4vEgow 

This TMBatch tutorial video provides an overview of the TMBatch companion application toTheia3D, and how to use it to batch analyze multiple movement trials. This includes the basic required steps for setting up and starting a batch analysis, including choosing the batch directory, selecting the batch output options and analysis preferences, and fine tuning the batch analysis trial list.


Theia3D Workspaces:

Link: https://youtu.be/ffG7lCPJ8k8 

This Theia3D tutorial video provides an overview of how to save, open, and navigate within Theia3D workspaces, as well as the data that they contain.


Theia3D in Visual3D:

Link: https://youtu.be/FXL1Tb8g_HM 

This Theia3D tutorial video demonstrates how movement data processed in Theia3D can be loaded and analyzed in Visual3D, including a description of the automatic Visual3D model applied, and the signals contained in Theia3D output pose .c3d files.


Saving Video Overlays:

Link: https://youtu.be/qHPaBDrJVtU 

This Theia3D tutorial video demonstrates how to save out videos from Theia3D, including modifying the visualization settings that affect the saved video. This includes saving 2D video overlays and 3D viewer videos.