A 2-STAGE MODELING METHOD FOR COMPRESSING BINARY IMAGES BY ARITHMETICCODING

Authors
FRANTI P NEVALAINEN O
Citation
P. Franti et O. Nevalainen, A 2-STAGE MODELING METHOD FOR COMPRESSING BINARY IMAGES BY ARITHMETICCODING, Computer journal, 36(7), 1993, pp. 615-622
Citations number
22
Categorie Soggetti
Computer Sciences","Computer Applications & Cybernetics
Journal title
Computer journal → ACNP
ISSN journal
00104620
Volume
36
Issue
7
Year of publication
1993
Pages
615 - 622
Database
ISI
SICI code
0010-4620(1993)36:7<615:A2MMFC>2.0.ZU;2-P
Abstract
A two-stage modelling schema to be used together with arithmetic codin g is proposed. The main motivation of the work has been the relatively slow operation of arithmetic coding. The new modelling schema reduces the use of arithmetic coding by applying to large white regions globa l modelling which consumes less time. This composite method works well and with a set of test images it took only about 41% of the time requ ired by a QM-coder. At the same time the loss in compression ratio is only marginal.