Thesis (doctoral)--Stockholm University, 1995. / Additional abstract page laid in. Includes bibliographical references (p. [151]-172).

Zugl.: Wuppertal, Univ., Diss., 2009

Thesis (Masters) -- California Institute of Technology, 2010. / Title from home page (viewed 04/19/10). Advisor names found in the thesis' metadata record in the digital repository. Includes bibliographical references.

Thesis (M.A.)--University of North Carolina at Wilmington, 2006. / Includes bibliographical references (leaf: [41])

Thesis (M.Sc.Eng.)-University of KwaZulu-Natal, Durban, 2009. / Full text also available. Scroll down for electronic link.

Thesis (M. A.)--University of Hong Kong, 2005. / Title proper from title frame. Also available in printed format.

Thesis (M. Phil.)--University of Hong Kong, 2006. / Title proper from title frame. Also available in printed format.

Th. 3e cycle--Inform.--Rennes 1, 1979. N°: 585.

The author felt that a short history of world income taxes including the earlier American eras would provide a strong foundation on which to build the development of the present Federal income tax structure. With this end in view, chapter one is devoted to this background. The rates of taxation and the amounts of income on which these rates are effective have, of course, varied from year to year. The problems arising in connection with these categories are discussed in the second chapter from the standpoint of the different returns filed. The third chapter presents the varied complex problems that arise in the completion of income tax returns. There are many in this connection but the author has attempted to show only the more important. The accountant has been, naturally, a very influential factor in the development of income taxes, especially in connection with their relation to business. This has been shown in chapter four. The final chapter brings out the conclusions drawn from this study along with some brief summary statements.

[pt] Essa dissertação propõe um codificador de imagens adaptativo baseado em sub-bandas para baixas taxas de bits. O espectro de freqüência bi-dimensional é decomposto em 10 sub-bandas de maneira hierárquica através de um banco de filtros QMF de 9 coeficientes. Uma técnica de redução de irrelevância é usada para descartar vetores nas sub-bandas de número 2 a 10. Os vetores remanescentes nessas sub-bandas são classificadas em bordas ou texturas e codificados por ECVQ (Entropy Constrained Vector Quantization) multi-estágios. Já a primeira sub-banda é codificada por ADPCM com preservação de bordas. Um algoritmo ótimo de alocação de bits determina a distribuição adequada de bits entre as sub-bandas. Os resultados mostram excelentes desempenho para baixas taxas, sendo melhores que os obtidos pelo padrão JPEG e vários outros trabalhos apresentados na literatura recente. / [en] This dissertation proposes an adaptative subband coder for low bit rate coding os still images. The bi-dimension frequency spectrum is decomposed in 10 subbands by means of a 9-coefficient QMF filter bank. Vector in subbands 2 to 10 are discarded by a new technique for irrelevancy reduction. The remanining vectors are classified in one of two classes, edges and textures, and coded by multistage ECVQ (Entropy Constrained Vector Quantization). The first subband is coded by an edge preserving ADPCM. An optimal bit allocation procedure is used to distribute bits along the subbands. The results obtained show excellent performance for low bit rate coding, outperforming JPEG and many other coders recently presented in literature.