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visual3d:documentation:third-party:vicon:vicon_nexus [2025/11/04 15:31] – wikisysopvisual3d:documentation:third-party:vicon:vicon_nexus [2025/11/05 21:11] (current) – [Step 2 - Visual3D] wikisysop
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-====Step 1a - Static Calibration====+====Step 1a - Static Calibration Trial====
 **1. Marker Placement** \\ **1. Marker Placement** \\
   * Place the desired markers on the subject (either a custom marker set or a commonly used community-defined set).    * Place the desired markers on the subject (either a custom marker set or a commonly used community-defined set). 
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   * Vicon Labeling Skeleton Template is a Vicon Nexus file type to describe the relationship between segments, joints, and marker sets.    * Vicon Labeling Skeleton Template is a Vicon Nexus file type to describe the relationship between segments, joints, and marker sets. 
  
-{{:visual3d:documentation:third-party:vicon:loading_skeleton_with_arrow.png?300}} +{{:visual3d:documentation:third-party:vicon:step1a3.png?300|}} 
  
 Below are two different viewing options in Nexus that visualize the marker set and the VST. The recorded static trial shows markers in both the 3D Perspective and Subject Viewer, containing the markers, segments, and joints defined by Vicon.   Below are two different viewing options in Nexus that visualize the marker set and the VST. The recorded static trial shows markers in both the 3D Perspective and Subject Viewer, containing the markers, segments, and joints defined by Vicon.  
  
-{{:visual3d:documentation:third-party:vicon:vsk.png?850}}+{{:visual3d:documentation:third-party:vicon:step1a32.png?850|}} 
  
 **4. Reconstruct the Static Calibration Trial**\\ **4. Reconstruct the Static Calibration Trial**\\
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   * Once satisfied, run the following two steps in the pipeline to scale the subject and create a Vicon Labeling Skeleton file([[https://help.vicon.com/space/Nexus216/11602491/Calibrate+a+labeling+skeleton#CalibrateStatic|VSK]]) and to automatically label the markers.     * Once satisfied, run the following two steps in the pipeline to scale the subject and create a Vicon Labeling Skeleton file([[https://help.vicon.com/space/Nexus216/11602491/Calibrate+a+labeling+skeleton#CalibrateStatic|VSK]]) and to automatically label the markers.  
  
-{{:visual3d:documentation:third-party:vicon:pipeline.png?400|}}+{{:visual3d:documentation:third-party:vicon:step1a5.png?400|}}
  
  
 **6. Export as a C3D File** \\   **6. Export as a C3D File** \\  
   * From the **Tools** tab, select the appropriate export command. To integrate with Visual3D, export the static trial as a **[[visual3d:tutorials:real_time:biofeedback:c3d|C3D file]]**.   * From the **Tools** tab, select the appropriate export command. To integrate with Visual3D, export the static trial as a **[[visual3d:tutorials:real_time:biofeedback:c3d|C3D file]]**.
 +
 +
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 ====Step 1b - Dynamic Trial==== ====Step 1b - Dynamic Trial====
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 **4. Export as a C3D File** \\   **4. Export as a C3D File** \\  
   * From the **Tools** tab, select the appropriate export command. To integrate with Visual3D, export the static trial as a **[[visual3d:tutorials:real_time:biofeedback:c3d|C3D file]]**.   * From the **Tools** tab, select the appropriate export command. To integrate with Visual3D, export the static trial as a **[[visual3d:tutorials:real_time:biofeedback:c3d|C3D file]]**.
 +
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 ===== Step 2 - Visual3D ===== ===== Step 2 - Visual3D =====
- 
- 
 Once the static file has been properly labeled and scaled to the subject, the C3D file can be imported into Visual3D for further processing, analysis, and visualization.   Once the static file has been properly labeled and scaled to the subject, the C3D file can be imported into Visual3D for further processing, analysis, and visualization.  
- 
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   * From the **Model** menu, select **Create → Hybrid Model from C3D file**.   * From the **Model** menu, select **Create → Hybrid Model from C3D file**.
   * Select *Static.c3d* and click **Open**. \\    * Select *Static.c3d* and click **Open**. \\ 
-{{:CreateStatic.jpg}}+{{:visual3d:documentation:third-party:vicon:step21.png?600|}} 
  
 **2. Build the Model** \\   **2. Build the Model** \\  
   * In the **Model** tab, build the model based on the marker set used.     * In the **Model** tab, build the model based on the marker set used.  
   * In this example, the [[visual3d:tutorials:modeling:plug-in_gait_lower_limb|Plug-In Gait Lower Limb tutorial]] was used as instruction to build the lower body model.   * In this example, the [[visual3d:tutorials:modeling:plug-in_gait_lower_limb|Plug-In Gait Lower Limb tutorial]] was used as instruction to build the lower body model.
- 
- 
  
 **3. Save Model Template (.mdh file)** \\   **3. Save Model Template (.mdh file)** \\  
   * Go to **Model → [[visual3d:documentation:pipeline:model_commands:save_model_template|Save Model Template]]** to save the model as an `.mdh` file.     * Go to **Model → [[visual3d:documentation:pipeline:model_commands:save_model_template|Save Model Template]]** to save the model as an `.mdh` file.  
  
-{{:DSX_KneeMDH_SaveMDH.png?300|}} +{{:visual3d:documentation:third-party:vicon:step23.png?300|}}
  
  
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 \\ \\
 \\ \\
-{{:visual3d:documentation:third-party:vicon:applytomotionfile.png?300|}}+{{:visual3d:documentation:third-party:vicon:step25.png?300|}} 
 + 
 +**6. Validate the Origin Location within a C3D File** \\  
 +Once the dynamic files have been imported, you can verify the file’s origin to ensure it was created in Vicon.\\ 
 +In the [[visual3d:documentation:visual3d_signal_types:data_tree_syntax|Datatree]], under the **Manufacturer** folder, the Company, Software, and Version Label fields are listed for the C3D file. In this example from Nexus, these details confirm that the file originated from Vicon, specifically Vicon Nexus. 
 +{{:visual3d:documentation:third-party:vicon:datatreenew.png?300|}}
  
-**6. Analysis** \\  +**7. Analysis** \\  
 Analysis can begin once the model template has been applied to the motion files.   Analysis can begin once the model template has been applied to the motion files.  
 Within the **Models** tab, or using the [[visual3d:documentation:pipeline:model_based_data_commands:compute_model_based_data|Compute Model Based Data Pipeline]], computations such as joint angles can be performed (e.g., knee joint angles).   Within the **Models** tab, or using the [[visual3d:documentation:pipeline:model_based_data_commands:compute_model_based_data|Compute Model Based Data Pipeline]], computations such as joint angles can be performed (e.g., knee joint angles).  
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 |LINK_MODEL_BASED]]. Seen below, the skeletal model beside the calculated right knee signal |LINK_MODEL_BASED]]. Seen below, the skeletal model beside the calculated right knee signal
  
-{{:visual3d:documentation:third-party:vicon:finishedtutorial.png|}}+{{:visual3d:documentation:third-party:vicon:borderfinal.png?850|}}
  
-By following these steps, you can efficiently transition from marker-based data collection in Vicon Nexus to biomechanical modeling and analysis in Visual3D. Ensuring accurate labeling, calibration, and export will produce reliable and reproducible results for your motion capture workflow. 
  
 +
 +By following these steps, you can efficiently transition from marker-based data collection in Vicon Nexus to biomechanical modeling and analysis in Visual3D. Ensuring accurate labeling, calibration, and export will produce reliable and reproducible results for your motion capture workflow.
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visual3d/documentation/third-party/vicon/vicon_nexus.1762270265.txt.gz · Last modified: by wikisysop