Thesiss

Residual vector quantization (RVQ) is investigated in context of quantization cell shapes and is found to produce oblong cell shapes. The presence of these oblong cell shapes are in part responsible for the degradation in performance of RVQ compared to vector quantization (VQ). …

The vanishing moment of wavelets and associated multi-resolution framework yield an efficient representation of smooth functions with wavelet approximation. However as pointed out in many papers, the similar result cannot be expected for the piecewise smooth functions with large…