The DLMT. An alternative to the DCT

Moreno González, Félix Antonio y Aledo Ortega, David (2011). The DLMT. An alternative to the DCT. En: "IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society", 07/11/2011 - 10/11/2011, Melbourne, Australia. ISBN 978-1-61284-969-0. pp. 2192-2197.

Descripción

Título: The DLMT. An alternative to the DCT
Autor/es:
  • Moreno González, Félix Antonio
  • Aledo Ortega, David
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society
Fechas del Evento: 07/11/2011 - 10/11/2011
Lugar del Evento: Melbourne, Australia
Título del Libro: Proceedings of IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society
Fecha: 2011
ISBN: 978-1-61284-969-0
Materias:
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Automática, Ingeniería Electrónica e Informática Industrial [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

In the last recent years, with the popularity of image compression techniques, many architectures have been proposed. Those have been generally based on the Forward and Inverse Discrete Cosine Transform (FDCT, IDCT). Alternatively, compression schemes based on discrete “wavelets” transform (DWT), used, both, in JPEG2000 coding standard and in the next H264-SVC (Scalable Video Coding), do not need to divide the image into non-overlapping blocks or macroblocks. This paper discusses the DLMT (Discrete Lopez-Moreno Transform). It proposes a new scheme intermediate between the DCT and the DWT (Discrete Wavelet Transform). The DLMT is computationally very similar to the DCT and uses quasi-sinusoidal functions, so the emergence of artifact blocks and their effects have a relative low importance. The use of quasi-sinusoidal functions has allowed achieving a multiresolution control quite close to that obtained by a DWT, but without increasing the computational complexity of the transformation. The DLMT can also be applied over a whole image, but this does not involve increasing computational complexity. Simulation results in MATLAB show that the proposed DLMT has significant performance benefits and improvements comparing with the DCT

Más información

ID de Registro: 13241
Identificador DC: http://oa.upm.es/13241/
Identificador OAI: oai:oa.upm.es:13241
URL Oficial: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6119662
Depositado por: Memoria Investigacion
Depositado el: 29 Nov 2012 08:42
Ultima Modificación: 23 Feb 2017 17:39
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