Performance Evaluation of Trellis-Coded Vector Quantization
R.J. van der Vleuten, Jos H. Weber · 2005
We propose a new construction of trellis-coded vector quantizers (TCVQs), based upon our construction of trellis-coded quantizers (TCQs). The new construction yields TCVQs with a higher performance and is simpler than the previous construction given in [1]. The performances of the new TCVQs have been determined for the memoryless Gaussian, Laplacian, and uniform sources. The experiments that have been performed for various computational complexities and vector dimensions show that, at a constant rate and complexity, the performances of the TCVQs decrease as the dimension increases. Thus, for memoryless sources, at the same rate and computational complexity, our TCQs are superior to our TCVQs.