Barco MediCal LE, Инструкция по установке и эксплуатации

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Performing quality checks with test patterns
10
Pre-defined test pattern description
SMPTE
The SMPTE pattern is a universal pattern with which you can
check geometry, focus, white luminance, bandwidth and display
curve.
We suggest to check on display curve. Therefore, check the
patches with the 5% gray square on black and the 95% white
square on white. The gray squares should be visible if the system
is calibrated according to the DICOM display function.
To measure the patches, put the optical sensor on a patch and
check the measured luminance displayed in the Measure
window.
Briggs
This pattern can be used to check if the display function is
perceptually linear (calibrated according to the DICOM display
curve). The pattern consists of rectangles including small squares
that are 5% darker.
The small squares in each of the rectangles should be visible if
the system is calibrated according to the DICOM display function.
Grid
This pattern can be used to check the image geometry (size,
position, linearity) and focus.
Check if the lines of the pattern are:
• straight
• at an equal distance apart
• sharp