A COMPARISON OF 2 IMAGE COMPRESSION TECHNIQUES FOR SOFTCOPY PHOTOGRAMMETRY

Authors
NOVAK K SHAHIN FS
Citation
K. Novak et Fs. Shahin, A COMPARISON OF 2 IMAGE COMPRESSION TECHNIQUES FOR SOFTCOPY PHOTOGRAMMETRY, Photogrammetric engineering and remote sensing, 62(6), 1996, pp. 695-701
Citations number
8
Categorie Soggetti
Geosciences, Interdisciplinary",Geografhy,"Photographic Tecnology","Remote Sensing
Journal title
Photogrammetric engineering and remote sensing
ISSN journal
00991112 → ACNP
Volume
62
Issue
6
Year of publication
1996
Pages
695 - 701
Database
ISI
SICI code
Abstract
This paper discusses the basics of digital image compression and expla ins the conceptual differences of various approaches. Two techniques, the standard JPEG algorithm and the newly developed Hierarchical Predi ctive Coding (HPC) approach, are described in detail. They are compare d with respect to geometric quality, loss of information, compression ratio, and compression speed. JPEG yields better compression ratios; h owever, it is significantly slower than HPC.