A REDUCED LAPLACIAN PYRAMID FOR LOSSLESS AND PROGRESSIVE IMAGE COMMUNICATION

Authors
AIAZZI B ALPARONE L BARONTI S
Citation
B. Aiazzi et al., A REDUCED LAPLACIAN PYRAMID FOR LOSSLESS AND PROGRESSIVE IMAGE COMMUNICATION, IEEE transactions on communications, 44(1), 1996, pp. 18-22
Citations number
15
Categorie Soggetti
Telecommunications,"Engineering, Eletrical & Electronic
Journal title
IEEE transactions on communications → ACNP
ISSN journal
00906778
Volume
44
Issue
1
Year of publication
1996
Pages
18 - 22
Database
ISI
SICI code
0090-6778(1996)44:1<18:ARLPFL>2.0.ZU;2-8
Abstract
The Laplacian pyramid (LP) is appropriate for lossy image compression; conversely, the reduced-difference pyramid (RDP), having as many data as pixels, gives a better performance with lossless encoding. In this letter, a reduced LP is designed by discarding the anti-aliasing filt er and adopting a half-band interpolator, thus retaining three over fo ur of the LP coefficients, Lossless coding outperforms both LP and RDP , especially when dealing with medical images.