The DLMT. An alternative to the DCT

Moreno González, Félix Antonio and Aledo Ortega, David (2011). The DLMT. An alternative to the DCT. In: "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.

Description

Title: The DLMT. An alternative to the DCT
Author/s:
  • Moreno González, Félix Antonio
  • Aledo Ortega, David
Item Type: Presentation at Congress or Conference (Article)
Event Title: IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society
Event Dates: 07/11/2011 - 10/11/2011
Event Location: Melbourne, Australia
Title of Book: Proceedings of IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society
Date: 2011
ISBN: 978-1-61284-969-0
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Automática, Ingeniería Electrónica e Informática Industrial [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (455kB) | Preview

Abstract

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

More information

Item ID: 13241
DC Identifier: http://oa.upm.es/13241/
OAI Identifier: oai:oa.upm.es:13241
Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6119662
Deposited by: Memoria Investigacion
Deposited on: 29 Nov 2012 08:42
Last Modified: 23 Feb 2017 17:39
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM