Quantization Techniques
Mostrando 13-14 de 14 artigos, teses e dissertações.
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13. IMAGE COMPRESSION USING WAVELET TRANSFORM AND TRELLIS CODE VECTOR QUANTIZATION WITH ENTROPY CONSTRAINT / COMPRESSÃO DE IMAGENS USANDO TRANSFORMADA WAVELET E QUANTIZAÇÃO VETORIAL CODIFICADA EM TRELIÇA COM RESTRIÇÃO DE ENTROPIA
This dissertation presentes a low bit rate image coder using a 10 sub-band image decomposition base don the wavelet transform. Some blocks of coefficients of the high frequency sub-bands are discarded by a technique of irrelevancy reduction. The remaning blocks are classified into edges and non-edges, and coded by ECTCVQ (Entropy- constrained Trellis Vector
Publicado em: 1998
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14. Estrategias de detecção e diagnostico de falhas em sistemas dinamicos
Analytical redundancy for fault detection and diagnosis of dynamic systems, FDD, has been approached by several methodologies, state estimation, parameter estimation, expert systems, and pattern classification and recognition being typical examples. In particular, pattern classification and recognition methods adopt probabilistic, heuristic, neural, and fuzz
Publicado em: 1997