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visual3d:documentation:modeling:landmarks:static_pointer_landmarks_and_segments

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visual3d:documentation:modeling:landmarks:static_pointer_landmarks_and_segments [2024/06/26 20:23] – created sgrangervisual3d:documentation:modeling:landmarks:static_pointer_landmarks_and_segments [2024/07/17 15:45] (current) – created sgranger
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-====== Static_Pointer_Landmarks_and_Segments ======+====== Static Pointer Landmarks and Segments ======
  
 === Static Pointer Landmarks and Segments === === Static Pointer Landmarks and Segments ===
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 The Landmark defining the location of the Tip of a Static Pointer is done in three steps. The Landmark defining the location of the Tip of a Static Pointer is done in three steps.
  
-{{NdiTempTipDefinition.gif}}\\+{{:NdiTempTipDefinition.gif}}\\
  
  
 The first step is to use the data in the Pointer INI File to create a Landmark at the tip of the pointer relative to 3 tracking markers. It is possible to use this Landmark for determining the anatomical landmarks but it is useful to use all 6 tracking markers that are available. Visual3D uses Optimal Tracking for locating a segment in space, and it has been demonstrated in the literature that using 6 markers connected to a rigid body produces more accurate results that three markers. Additionally, Visual3D will compute the orientation of a segment using as many markers as exist in the frame (must be greater than or equal to 3 markers). Thus, if one marker is obscured the TIP Landmark can still be computed. The first step is to use the data in the Pointer INI File to create a Landmark at the tip of the pointer relative to 3 tracking markers. It is possible to use this Landmark for determining the anatomical landmarks but it is useful to use all 6 tracking markers that are available. Visual3D uses Optimal Tracking for locating a segment in space, and it has been demonstrated in the literature that using 6 markers connected to a rigid body produces more accurate results that three markers. Additionally, Visual3D will compute the orientation of a segment using as many markers as exist in the frame (must be greater than or equal to 3 markers). Thus, if one marker is obscured the TIP Landmark can still be computed.
  
-{{NdiWandSegment.gif}}\\+{{:NdiWandSegment.gif}}\\
  
  
 The Wand Segment is defined using the three markers associated with the temporary landmark, and tracked using all 6 tracking markers. The Wand Segment is defined using the three markers associated with the temporary landmark, and tracked using all 6 tracking markers.
  
-{{NdiTipDefinition.gif}}\\+{{:NdiTipDefinition.gif}}\\
  
  
visual3d/documentation/modeling/landmarks/static_pointer_landmarks_and_segments.1719433403.txt.gz · Last modified: 2024/06/26 20:23 by sgranger