2D Phantoms

These contain customisable options for the 2D Phantom Analysis. Set values to 0 for automatic detection unless otherwise indicated. Available settings are:

  • 2D Type: Sets the default 2D phantom. Select from the list provided.

  • Angle override: A manual override of the angle of the phantom. 0 is pointing from the center toward the right and positive values go counterclockwise.

  • Center override: A manual override of the center point of the phantom. Format is (x, y)/(col, row).

  • Size override: A manual override of the relative size of the phantom. This size value is used to scale the positions of the ROIs from the center.

  • High contrast threshold: This is the contrast threshold value which defines any high-contrast ROI as passing or failing.

  • Low contrast threshold: This is the contrast threshold value which defines any low-contrast ROI as passing or failing.

  • SSD: The SSD of the phantom itself in mm. If set to “auto”, will first search for the phantom at the SAD, then at 5cm above the SID.

Note Not all settings have been implemented.

Hint Inverting the image sets the invert flag.