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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
What DV standards call
level
is
the magnitude (i.e., absolute
value) of the AC coefficient.
Sign is coded separately.
When a DV VCR is in shuttle mode, it is quite likely
that a single CAA will be recovered individually, without
any of the other four CAAs of its segment. Overflow data
for the macroblock is quite likely to be missing.
However, overflow data is limited to high-frequency AC
coefficients. In shuttle playback, missing overflow coef-
ficients are replaced by zero. This causes loss of picture
detail in the reconstructed picture; however, the
absence of these coefficients
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Publisher Resources

ISBN: 9781558607927