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Proceedings Paper

Modulated lapped transforms in image coding
Author(s): Ricardo L. de Queiroz; K. R. Rao
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Paper Abstract

The class of modulated lapped transforms (MLT) with extended overlap is investigated in image coding. The finite-length-signals implementation using symmetric extensions is introduced and human visual sensitivity arrays are computed. Theoretical comparisons with other popular transforms are carried and simulations are made using intraframe coders. Emphasis is given in transmission over packet networks assuming high rate of data losses. The MLT with overlap factor 2 is shown to be superior in all our tests with bonus features such as greater robustness against block losses.

Paper Details

Date Published: 2 May 1994
PDF: 12 pages
Proc. SPIE 2187, Digital Video Compression on Personal Computers: Algorithms and Technologies, (2 May 1994); doi: 10.1117/12.174974
Show Author Affiliations
Ricardo L. de Queiroz, Univ. of Texas/Arlington (United States)
K. R. Rao, Univ. of Texas/Arlington (United States)


Published in SPIE Proceedings Vol. 2187:
Digital Video Compression on Personal Computers: Algorithms and Technologies
Arturo A. Rodriguez, Editor(s)

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