Decomposed Pyramid Vector Quantization by Using Barnes-wall Lattice
نویسنده
چکیده
The decomposed pyramid vector quantization (DPVQ) by using 16-dimensional Barnes-Wall lattice is presented and also its fast algorithm. DPVQ is motivated by a geometric structure of the memoryless Laplacian source of vectors. Its quantization vectors are the points that lie on the surface of 16-dimensional pyramid and also are points of BarnesWall lattice, which is an optimum one for this dimension according to minimization of the quantization noise.
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تاریخ انتشار 2013