Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005.
DOI: 10.1109/icassp.2005.1415425
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Fast Encoding Method for Vector Quantization Based on a New Mixed Pyramid Data Structure

Abstract: VQ is a famous signal compression method. The encoding speed of VQ is a key problem for its practical application. In principle, the high dimension of a vector makes it very expensive computationally to find the best-matched template in a codebook for an input vector by Euclidean distance. As a result, many fast search methods have been developed in previous works based on statistical features (i.e. mean, variance or L 2 norm) or multi-resolution representation (i.e. various pyramid data structures) of a vecto… Show more

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