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Centered Square
This pattern can be used to check the white luminance.
Put the optical sensor on the white square and check the
measured luminance displayed in the Measure window.
Bands with text
This pattern can be used to check if the display function is
perceptually linear (calibrated according to the DICOM display
curve).
This is the case if the text in all of the bands is legible.
Browse
Browse and select your own test pattern. MediCal LE supports
bmp, tif, jpg and gif files.
Character
This pattern can be used to check the image focus.
Check that the characters are sharp.
Contrast noise
This pattern can be used to check the video signal.
Check that there is no ghosting or smearing near the white
squares.
Geometry
This pattern can be used to check the image geometry, especially
linearity.
For linearity, check if the circles on the pattern are well-shaped
and symmetrical.
Performing quality checks with test patterns
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