Reduction of the memory requirements for the VLSI implementation of the 2D-inverse fast wavelet transform, using a space-filling curve

Author

Lafruit, Gauthier ; Schelkens, Peter ; Catthoor, Francky ; Cornelis, Jan

Author_Institution

IMEC, Leuven, Belgium

Volume

2

fYear

1996

fDate

13-16 Oct 1996

Firstpage

836

Abstract

Since wavelet based codecs seem to be a promising alternative to the classically used block-transform based codecs, it is important to take a look at the hardware implementation constraints that are imposed by such multiresolution architectures. We show that by reorganising the data order within the 2D-FWT and taking the causality relation between the 2D-FWT and 2D-IFWT into account, the memory requirements and latencies for practical 2D-FWT/2D-IFWT compression/decompression schemes are minimised by using specific 2D fractal space-filling image scan curves

Keywords

VLSI; codecs; fractals; inverse problems; wavelet transforms; 2D inverse fast wavelet transform; VLSI hardware; causality relation; codec; compression; data order; decompression; fractal space-filling image scan curve; latency; memory; multiresolution architecture; Codecs; Decoding; Image coding; Image resolution; Quantization; Random access memory; Signal resolution; Transform coding; Very large scale integration; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits, and Systems, 1996. ICECS '96., Proceedings of the Third IEEE International Conference on

Conference_Location

Rodos

Print_ISBN

0-7803-3650-X

Type

conf

DOI

10.1109/ICECS.1996.584512

Filename

584512