Step 2. Set Mocap Zone

The second step in the setup process is to calibrate MOVIN TRACIN so that it can accurately understand the layout of your physical space.

Mocap Actor & Mocap Zone Setting

Motion capture actor should wear non-reflective, fitted clothing.

  • Motion capture actor should avoid wearing reflective clothing or footwear.

  • Please wear fitted clothing and tie up long hair to prevent interference.

    • Loose or dynamic elements like oversized outfits, lace or flowing fabrics, dangling jewelry, or free-moving hair may negatively affect motion capture performance.

The motion capture space must be at least 1m away from the device and completely clear of objects.

  • Keep at least 1m between the starting point of the motion capture zone and the device

  • All objects should be removed from the motion capture zone.

    • If this isn’t possible, reduce the zone size in MOVIN Studio accordingly.

  • The flatness of the floor in the motion capture zone should be checked.

  • Remove any mirrors, Scotch tape, or other reflective surfaces within the mocap zone.

  • If you're working in environments with unsuitable flooring, such as:

    • Uneven textures (e.g. carpets),

    • Highly reflective materials (e.g. marble, glass)

    • Or soft floors that transmit vibration

    We recommend using firmly secured floor mats to improve stability and tracking performance.

  • The motion capture efficiency improves when the zone is clearly distinguished from surrounding areas.

    • The center, corners, and vertices of the motion capture zone should be marked with tape.

Brief Introduction to the Display

Display of Step 2. Set Mocap Zone

Center Panel

  • First Row: Front and Side views

    • Each view displays the ground-level point cloud captured by TRACIN from the front and side perspectives.

    • A gray reference box is centered in each view, serving as the alignment boundary for accurate ground leveling.

      • Points within the gray box are shown in green, while those outside appear in red, indicating misalignment.

    • The currently selected view is highlighted with a green border.

  • Second Row: 3D view

    • A white 3D cube outlines the motion capture zone, representing the capture volume TRACIN uses to detect and record movement.

    • Points inside the capture volume are highlighted in red, signaling that the area must be cleared before starting the session.

Right Panel

  • Click “Front View” or “Side View” to select a perspective and adjust the point cloud accordingly.

  • Use the navigation buttons to move the point cloud vertically or rotate the view.

  • Adjust the Height slider to set the vertical size of the capture volume.

  • In the right panel, the floor plan of the mocap zone is outlined in yellow. Drag the border lines to resize the width and length of the capture volume.

  • Drag the circle to reposition the center of the mocap zone.

1

Drag the border lines and the circle line to define the width and length of the capture volume in the right panel.

  • The motion capture zone can be set between a minimum of 1m (width) x 1m (depth) x 1.5m (height) and a maximum of 5m (width) x 5m (depth) x 3m (height).

    • For the MT-110, the maximum size is 5m (width) x 4.5m (depth) x 3m (height).

  • The minimum distance from TRACIN to the mocap zone is 1m.

    • For the MT-110, the minimum distance is 1.5m.

  • The mocap zone can be offset from its center by a minimum of 0.5m and a maximum of 2.5m.

  • The center of the mocap zone can be positioned between 1.5m and 5.5m from TRACIN.

  • In the right panel’s floor plan, move the circular handle to adjust the center of the mocap zone, and drag the yellow border lines to set its width and depth.

2

Use the 'Height' Slider bar to adjust the height of the mocap zone.

  • If the ceiling is detected within the mocap zone, it will appear as a red point cloud as shown in the image above.

  • In this case, reduce the height using the 'Height' slider bar to exclude it.

3

Leveling: Aligning the Point Cloud with the Reference Box

Move and rotate the point cloud to align it with the gray reference box. Repeat the adjustment in both front and side views for optimal accuracy.
  • Use 'Front' and 'Side' buttons to switch to the ground's front view or side view.

  • In the right panel, use the rotation buttons to correct any tilt in the selected view.

  • Use the translation buttons to move the point cloud up or down so it is positioned within the gray reference box.

  • Red points indicate areas that fall outside the gray reference box. Repeat the adjustment until the point cloud displayed in both the front and side views is shown in green as much as possible.

4

Get rid of all objects/obstacles from your mocap zone.

  • To start the motion capture session, the mocap zone must be completely clear. Any object inside the zone will appear as red point clouds.

  • If there are objects that cannot be removed from the zone, reduce the size of the motion capture zone.

5

Click the 'save' button to store the zone setting.

  • If the point cloud remains above the gray reference box in the front or side view, or if there are still objects inside the motion capture zone, the point cloud will remain red, and you will not be able to proceed to the next step.

    • Click the ‘Edit’ button and adjust the motion capture zone to ensure no objects remain inside.

6

Click the 'Next' button in the right panel

  • The 'Next' button will only appear when there are no red point clouds inside the mocap zone.

  • Click this button to proceed to the next step.

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