Setting a Collision Warning Model

You can display a warning on an obstacle shown in viewpoint images by setting a mask model called a “collision warning model” on the surface of the obstacle so that the MREAL user does not collide with an obstacle such as a wall, step, or desk.

Preparation

A dedicated modeling marker is required to set a mask model. If you do not have a modeling marker, print a modeling marker with the following procedure.

  1. Select [Collision Warning Model] in [Option Settings] of the MREAL Configuration Tool window.

  2. Click [Add] in the following window.

  3. Click [Open] of [1. Preliminary Preparation].

    • The modeling marker (PDF file) is displayed.

  4. Print the modeling marker.

    • After printing, affix cardboard or similar material to the back.

  5. Place the modeling marker.

    • Place the modeling marker with its indicators aligned with the front of the obstacle.

Mask Model Settings

  1. Click [Start Tool] of [2. Add Collision Warning Model].

    • The Object Modeling Tool window appears. For details on the Object Modeling Tool window (Preview window / Settings panel), see “Object Modeling Tool Window”.

  2. Set a new mask model.

    • Select [Warning Model] in [Attributes] on the Settings panel.

      Select [Shape] and [Size] to match the shape and size of the obstacle.

  3. Capture an image for configuration.

    • While checking the MREAL Display image in the Preview window, ensure that both the obstacle and modeling marker are shown within the window at the same time.

    • Click [Grab] on the Settings panel to capture an image. We recommend capturing multiple images while changing the direction.
    • Click [][] in [Display Grabbed Images] to select the image for which to configure the settings of the mask model. The selected image is displayed in the Preview window.
    • Capture the image while camera tracking is in a stable state.

  4. Adjust the mask model.

    • If you click [New] on the Settings panel, a mask is displayed on a surface of the obstacle.

    • Move (A), (B), and (C) (in the clicked state) in the following window to adjust the size of the mask so that it covers the obstacle.

    • If the mask needs to be rotated, operate [Orientation] on the Settings panel.
    • You can adjust the position and size of the mask by entering numerical values in [Edit Model].
    • Enter the distance at which to display a warning in [Display Distance Setting].
    • Click [Apply] then [OK].

  5. Click [OK] in the MREAL Configuration Tool window.

    • To add a mask model, repeat the work from step 2.

Caution

  • In the following cases, delete and create new mask models.
    • When the tracking method has been changed
    • When the position, size, or other attribute of the obstacle has been changed
    • When marker or sensor calibration has been performed
  • Rename or delete a collision warning model in the window of step 2 in “Preparation”.

Object Modeling Tool Window

Preview window

  • You can enlarge/reduce the image by operating the icons at the bottom of the window. Clicking [] switches to full screen display. Pressing the [Esc] key on the keyboard returns the image to its original size.

Settings panel

  • (1) Select the attributes of the mask model.

    • Warning model: Display a warning when the MREAL user approaches the obstacle (display color is red).
    • Masking model: Correctly display the front-back relationship between the object for which the mask model is set and the 3D CG (display color is blue).
    • Warning + masking model: Set the front-back relationship of the CG image and set the warning mark at the same time (display color is green).

  • (2) When starting creation of a mask model, click [New] and select the shape (plane/cuboid/cylinder) and size of the mask model.

  • (3) Click [Grab] to capture images to use for creating the mask model. If you operate [Display Grabbed Images], the captured images are displayed in the Preview window.

  • (4) Display a list of the placed mask models, and delete or rename them.

  • (5) Set the size and position of the mask model by entering numerical values.

  • (6) Operate this when you need to rotate the mask model.

  • (7) Set the distance at which to display a warning.

  • (8) Apply the settings to the mask model being edited.