File Menu
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Theia Axiom - v2025
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Shortcut: Ctrl + F4
Clear all loaded data and analysis results.
Shortcut: Ctrl + O
Load video files (MP4 or AVI) for analysis. To load the videos, browse to and select the folder containing the videos. The structure of this folder must conform to the format described in .
Shortcut: Ctrl + Shift + O
Load the camera calibrations for analysis. To load the calibrations, browse to and select the file containing the calibrations for all of the cameras. The calibration file must conform to the format described in .
Open a previously saved workspace. To load the workspace, browse to and select the directory containing the workspace files (AVI, T3D, P3D).
Shortcut: Ctrl + S
Save the videos, camera calibration, and analysis results in the current workspace to a directory in a format that can be opened by Theia3D. Select the frames to include in the workspace and press the Save button. Browse to the desired save location and enter the name of the directory that will be created to store the workspace files. To overwrite the current workspace, use the dialog to select a .t3d file in the existing workspace folder. Note that this only overwites the results (T3D and P3D files) and leaves the videos untouched. In this case, all frames in the workspace must be saved. It is not possible to save to an existing workspace folder other than the currently open one.
Save the current calibration. To save the calibration browse to the desired save location and enter the desired filename.
Save the scaled 3D model. To save the scaled model browse to the desired save location and enter the desired filename. Note that if multiple people are tracked a separate model will be saved for each of them. The files are automatically named as filename_personID.tmb, where personid is automatically assigned.
Shortcut: Ctrl + Shift + S, 1
For C3D files there is an option to Save multi-subject C3D. If this option is selected, two C3D files will be created - one with the unfiltered pose and one with the filtered pose. Both files will contain all tracked subjects. If the multi-subject option is not selected, separate files will be created for each tracked subject.
For JSON files the user can select which tracked individuals and which frames of the trial to include in the output file. The JSON output files are easily readable in a text editor or used as input for a custom analysis script.
With the desired options selected, press the Save button, browse to the save location and enter the filename. The person ID and filtered tag are appended to the filename as needed.
Opens the pose data for all tracked people in Visual3D.
Shortcut: Ctrl + Shift + S, 2
Workspaces created using Theia3D v2023 or earlier versions are incompatible with subsequent versions of Theia3D (Apollo v2024 and Axiom v2025). Any such workspaces should be reproduced by re-analyzing the raw data using an updated version of Theia3D. If the raw data is no longer available, it can be extracted from the existing workspaces using the tool in Theia3D Batch.
Save the 3D pose of the tracked people. Select the person (or all people) and the frame range (or select the option to use the analysis frames) to save in the file. Files can be saved in C3D, FBX, or JSON format. The data included in the files is described in.
For FBX files there is an option to select the exported coordinate system. Preset options are available for common software programs or custom coordinate system can be defined. Saving an FBX file requires the to be used when solving the pose.
Save each of the 2D view video overlays as an AVI file. The videos saved are identical to the overlays shown in Theia3D; therefore, you should modify the options that affect the 2D visualizations in the and before saving video overlays. Select the desired frame rate and the frame range (or select the option to use the analysis frames) of the videos and click the Save button. Browse to the desired save location and enter the desired filename. One video file will be saved for each overlay and the files are automatically named as filename_cameraID.avi.
Save the 3D scene as an AVI video file. The video saved is identical to the 3D view shown in the 3D Viewer; therefore you should modify the options that affect the 3D visualizations in the and before saving before saving 3D View videos. Select the desired frame rate and the frame range of the videos and press the Save button. Browse to the desired save location and enter the desired filename.
