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Digital Video and HD
book

Digital Video and HD

by Charles Poynton
January 2003
Intermediate to advanced content levelIntermediate to advanced
736 pages
30h 54m
English
Morgan Kaufmann
Content preview from Digital Video and HD
Resampling, interpolation,
and decimation
17
In video and audio signal processing, it is often neces-
sary to take a set of sample values and produce another
set that approximates the samples that would have
resulted had the original sampling occurred at different
instants- at a different rate, or at a different phase.
This is called
resampling.
(In PC parlance, resampling
for the purpose of picture resizing is called
scaling.)
Resampling is an essential part of video processes such
as these:
9 Chroma subsampling (e.g., 4:4:4 to 4:2:2)
9 Downconversion (e.g., HDTV to SDTV) and upconver- ...
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Publisher Resources

ISBN: 9781558607927