Differences

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--- other:amass:documentation:track [2024/06/26 20:19] – created sgranger
+++ other:amass:documentation:track [2024/07/17 15:44] (current) – created sgranger
@@ Line 11: / Line 11: @@
 The ability of the //**Track**// program to reliably identify rays that belong to the same marker is strongly dependent upon the accuracy of the calibration. Rays that do not tightly intersect (have high residuals) cannot reliably be assigned to a single marker, resulting in poor tracking, “ghost markers” (caused by the program combining rays that actually come from different markers), and gaps in the marker segments. Hence, even if your experimental requirements do not call for high accuracy, the quality of the calibration is critical to effective marker trajectory generation.
-All marker (point) positions are expressed in the user distance units in the Global Coordinate System as defined by the [[Other:AMASS:Documentation:Calibrate#Reference_marker_file|reference markers]] during the system calibration.
+All marker (point) positions are expressed in the user distance units in the Global Coordinate System as defined by the [[Other:AMASS:Documentation:Calibrate_AMASS2#Reference_marker_file|reference markers]] during the system calibration.
 ==== Track parameters ====
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 The Track parameters influence the 3D reconstruction and formation of the segments.
-{{track_params_nov3d.jpg}}
+{{:track_params_nov3d.jpg}}
   * ****Predictor error**** During tracking 3D point positions are gathered into trajectories or segments, and typically five previous frames of a point’s locations are used to predict its position in the next frame. The Predictor error parameter defines how far the point’s calculated location in the next frame may be from its predicted location in order for the point to be considered to belong to the current segment. If there are no points found within the **Predictor error** distance of the predicted location the segment is terminated. Setting this value too low will result in many short segments while setting it too high may cause segment crossovers (the trajectory of two markers are swapped). The default value is 5mm.The predictor error should be set with regard to
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   * ****Display frame**** Setting this Track parameter to a valid frame number will case the //**Track**// program to pause processing at the designated frame and allow the user to examine the marker reconstruction geometry. This facility is useful in diagnosing tracking problems and also serves as a very useful teaching tool. The graphics screen displays a 3D view of all rays, calculated marker locations, ray residuals, and predicted marker positions ( drawn to scale as squares), and allows image manipulation by use of the mouse. The markers are also drawn to scale according to the size entered in the **Marker diam.** parameter, and the small circles have a radius of 1.0 mm.
-{{sview.jpg}}
+{{:sview.jpg}}
 The view may be __rotated__ and __tilted__ by dragging with the __left__ mouse button. Dragging __up-down__ with the __right__ mouse button performs __zooming__ of the view, while __left-right__ dragging changes the __lengths of the rays__ that are displayed. __Right double-clicking__ on a marker makes that marker the __center__ of the display.