Digital Signal Processing Reference
In-Depth Information
Fig. 4.11
Block diagram of progressive MDSLVQ scheme
the centroid of the triangle lattice shown in Fig.
4.10
to get symmetrical origins of
lattice vector quantizers, which turns to produce three balanced descriptions. If only
one channel works, the reconstruction is the lattice point of the hexagon lattice.
If two arbitrary channels work, the reconstruction is the centroid of the diamond
lattice just as in Fig.
4.8
. Lastly, if all three channel work, the fine reconstruction
is the centroid of the triangle lattice. As the descriptions achieved increase, we can
obtain better reconstruction.
4.2.3
Progressive MDSLVQ Scheme
Our scheme can be depicted as in Fig.
4.11
, and the encoding and decoding methods
are explained as follows.
