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Advances in Visual Data Compression and Communication
book

Advances in Visual Data Compression and Communication

by Feng Wu
July 2014
Intermediate to advanced content levelIntermediate to advanced
513 pages
16h 40m
English
Auerbach Publications
Content preview from Advances in Visual Data Compression and Communication
i
i
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i
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i
356 16 DCast: Distributed Video Multicast
the same channel (if assuming that S X is available to the encoder) [417]. Actu-
ally, according to the theorem by Kochman and Zamir [417] (the existence of good
lattice), the coset value C of each subband has the same variance with the prediction
residue S X of each subband, that is,
σ
2
C
i
= E{C
2
i
} = E{(S
i
X
i
)
2
}. (16.43)
Thus, the coset value and the prediction residue have the same variance in frame
level, that is,
σ
2
C
= E{(S X)
2
} = σ
2
SX
. (16.44)
Therefore, Eq. (16.41), Eq. (16.42), and Eq. (16.44) implies
D = σ
2
ˆ
CC
α
coset
σ
2
SX
P
coset
n
coset
N
0
1
. (16.45)
This means D is proportional to the prediction ...
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Publisher Resources

ISBN: 9781482234138