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Digital Projection M-Vision 930 Series
Reference Guide
APPENDIX F: GLOSSARY OF TERMS
Rev C February 2015
Edge tear
An artifact observed in
interlaced video
where the screen appears to be split horizontally. Edge tears appear when the video feed is out of
sync with the refresh rate of the display device.
EDID (Extended Display Identification Data)
Information stored in the projector that can be read by the source.
EDID is used on the HDMI, DVI and VGA inputs, allowing the source to automatically configure to the optimum display settings.
EDTV (Enhanced Definition Television)
A
progressive
digital television system with a lower resolution than
HDTV
.
Field
In
interlaced video
, a part of the image
frame
that is scanned separately. A field is a collection of either all the odd lines or all the even lines
within the frame.
Frame
One of the many still images displayed in a sequence to create a moving picture. A frame is made of horizontal lines of
pixels
. For example,
a 1920x1080 frame consists of 1080 lines, each containing 1920 pixels. In analog video frames are scanned one at a time (
progressive
scanning
) or split into
fields
for each field to be scanned separately (
interlaced video
).
Frame rate
The number of
frames
shown per second (fps). In TV and video, a frame rate is the rate at which the display device scans the screen to
“draw” the frame.
Frame rate multiplication
To stop low
frame rate
3D images from flickering, frame rate multiplication can be used, which increases the displayed frame rate by two or
three times.
Notes
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