Color Map Adjustment for Whole Body Scanners

This page will list the steps required to adjust the color mapping properties for scan head 0 using CyScan. Scan heads 1, 2 & 3 will be corrected in procedures that are linked to this document. You should always contact Cyberware Support before performing any calibration to ensure you have the proper tools and an understanding of the procedures.

Required Tools

In order to complete this procedure, you must have the following:

Procedure
  1. Launch CyScan.
  2. Backup your current scanner configuration. This step is very important.
  3. Pick 'Scanner | Select Device...' from the CyScan menus.
    4. [Scanner Menu]
    Scanner Menu
  4. Click one time on your Whole Body Scanner or Head & Face Scanner from the list. For the purposes of this guide, we have chosen a Whole Body Scanner.
    5. [Select Whole Body Scanner]
    Select Whole Body Scanner
  5. Click the Accept button.
    6. [Select Whole Body Scanner]
    Select Whole Body Scanner
  6. In the main CyScan window, press the Setup button.
    7. [Scan Setup]
    Scan Setup

    The Setup window will open.

    [Scan Setup Dialog]
    Scan Setup Dialog
  7. Enable the following settings in the Setup window:
    8. Texture:HiRez RGB
    Width:2000mm
    Pitch:4.0mm
    [Scan Setup Dialog]
    Scan Setup Dialog
  8. Click on the Accept button in the Setup window.
    9. [Scan Setup Dialog]
    Scan Setup Dialog
  9. Center the subject on the motion platform, facing cameras 0 & 1.
  10. In the main CyScan window, click the Scan button.
    11. [Scan]
    Scan
  11. Turn OFF the scan head view buttons for cameras 1, 2 and 3.
    12. [Scanhead Views]
    Scanhead View Buttons
  12. Select the Shaded Textured Surface button in the CyScan window.
    13. [Shaded Textured Surface]
    Shaded Textured Surface Button
  13. Activate the main CyScan window by clicking on it with the right mouse button.
  14. Enter the following command to enable the 'Utilities' menu: CTRL + SHIFT + u
  15. Select Utiliity | Texture Controls... from the menus.
    16. [Utility Menu]
    Utility Menu

    You will be presented with four (4) Texture Resampling dialogs (one dialog for each scan head).

    [Texture Control] [Texture Control] [Texture Control] [Texture Control]
    Texture Control: tr0Texture Control: tr1Texture Control: tr2Texture Control: tr3
  16. Find the dialog labeled Texture: tr0.
    17. [Texture Controls (Head 0)]
    Texture Controls (Head 0)

    This control panel is the interface to all of the color mapping controls. The pertinent controls are explained below (for a more detailed description of the various controls in this window, please consult the reference section of this user guide):

    IMPORTANT:
    It is important that you use only the sliders that are discussed in this procedure. Modification of the remaining sliders is not necessary, and may make the color alignment process extremely difficult.
  17. Set Scale M to zero (0).
    18. [Texture Controls (Head 0)]
    Texture Controls (Head 0)
  18. Set Move M (frame) to zero (0).
    19. [Texture Controls (Head 0)]
    Texture Controls (Head 0)
  19. Adjust the vertical (Y) mapping:

    20. Adjust the sliders listed below in order to get the best mapping of the color texture along the vertical (up/down) axis. After each movement of a slider, use the Process button to see if your changes are acceptable. Use very small changes until you are comfortable with the adjustment procedure.

    [Texture Controls (Head 0)]
    Texture Controls (Head 0)
    1. The Move M (meter) slider controls the up and down movement of all three (3) color channels; Red (R), Green (G) and Blue (B). Be careful to NOT use the 'Move M (frame)' slider.
    2. Press the Process button to reapply the texture map to the polygonal data with the new parameters.
    3. Repeat this step until the color map is in alignment with the polygonal data in the vertical direction.
    4. Press the Save Changes button to commit these changes to the scanner's memory.
  20. Adjust the horizontal (X) mapping:

    21. Just like the sliders above, use the Process button to verify that you're moving the texture in the correct direction and receiving appropriate results. Also, use very small changes until you are comfortable with the adjustment procedure.

    [Texture Controls (Head 0)]
    Texture Controls (Head 0)
    1. Move the Move N to a higher or lower number to adjust the color mapping along the X axis.
    2. Press the Process button to reapply the texture map to the polygonal data with the new parameters.
    3. Repeat this step until the color map is in alignment with the polygonal data in the horizontal direction.
    4. Press the Save Changes button to commit these changes to the scanner's memory.
  21. Adjust the X-axis "stretch":

    22. Very little, if any, adjustment should be needed with this parameter. Be very careful when adjusting this value, as very small changes in the value can cause extreme changes in the way that the color maps to the object.

    [Texture Controls (Head 0)]
    Texture Controls (Head 0)
    1. Move the Scale N to a higher or lower number to adjust the color mapping along the X axis.
    2. Press the Process button to reapply the texture map to the polygonal data with the new parameters.
    3. Repeat this step until the color map is in alignment with the polygonal data in the horizontal direction.
    4. Press the Save Changes button to commit these changes to the scanner's memory.
  22. Sometimes, further refinement of the variables is required. Repeat the steps in this procedure as many times as necessary to correctly map the color onto the range data.
  23. Quit CyScan.
  24. Launch CyScan (this will read in the new color mapping parameters).
  25. Take a scan with the following settings:
    26. Texture:HiRez RGB
    Width:2000mm
    Pitch:4.0mm
  26. Select Shaded Textured Surface from the CyScan window and verify the new settings.
  27. Continue to align the color for scan head 1.