Packed integer wavelet transform constructed by lifting scheme

Citation
Cj. Lin et al., Packed integer wavelet transform constructed by lifting scheme, IEEE CIR SV, 10(8), 2000, pp. 1496-1501
Citations number
11
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
ISSN journal
1051-8215 → ACNP
Volume
10
Issue
8
Year of publication
2000
Pages
1496 - 1501
Database
ISI
SICI code
1051-8215(200012)10:8<1496:PIWTCB>2.0.ZU;2-S
Abstract
A new method for speeding up the integer wavelet transforms constructed by the lifting scheme is proposed. The proposed method packs multiple pixels ( wavelet coefficients) in a single word; therefore, it can make use of the 3 2-bit or 64-bit computational capability of modern computers to accomplish multiple addition/subtraction operations in one instruction cycle. As a res ult, our method can save the decomposition/reconstruction time by up to 37 % on 32-bit machines and require much less working memory in comparison wit h the original wavelet transform algorithms.