Glossary
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Gamma 2.2
This is a gamma function with a gamma value of 2.2, which is
approximately the natural gamma of most CRT displays.
Imaging board head
An imaging board or graphics board converts the digital data
from the computer into analog video voltages.
Most of the common imaging boards contain just one set of
video and sync outputs. However, some high-end boards, like
some of the BarcoMed boards, contain two sets of video and sync
outputs. This is called a dual head imaging board. It is like two
complete imaging boards implemented on one single unit.
A dual head board in the computer behaves exactly as if two
separate boards were installed.
DICOM
DICOM stands for Digital Imaging and Communications in
Medicine. It is a standard developed by the American College of
Radiology (ACR) and the National Electrical Manufacturers
Association (NEMA).
The standard specifies how digital image data can be moved
from system to system.
In addition, Supplement 28 Part 14 specifies a function that
relates pixel values to displayed Luminance levels and is called
Grayscale Display Function Standard.
CIE
CIE stands for Commission Internationale d'éclairage
(International commission on illumination), an organization
devoted to international cooperation and exchange of
information on all matters relating to the science and art of
lighting.
The CIE display curve in MediCal LE is based on the CIE 1976
standard.
