Computer Science – Performance
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.507..301v&link_type=abstract
Proceedings of the European Space Components Conference, ESCCON 2002, 24-27 September 2002, Toulouse, France. Compiled by R.A. H
Computer Science
Performance
Scientific paper
The FlexWave-II has been developed as a dedicated image compression component for spaceborn applica- tions, enabling a multitude of application scenarios, including lossless and lossy compression. The Flex-Wave-II provides scalable compression, allowing gradual enhancement or degradation of the image quality in a programmable way. A wavelet-based compression scheme has been selected because of the intrinsic scalable characteristics. Moreover the compression criteria can be tuned separately for optimal measurement and visual data compression. The FlexWave-II provides full scalability features and high processing performance. It supports push-broom image processing. The wavelet transform engine is ca- pable of computing up to 5 levels of wavelet transform with 5/3-, 9/3- or 9/7-tap wavelet filters, for image sizes as large as 1k×1k pixels. On an FPGA implementation, clocked on 41 MHz, a processing performance of up to 10 Mpixels/second was measured. The wavelet com- pression engine allows two compression modes: a fixed compression ratio mode optimised for user-defined cri- teria and a fixed quantisation mode with user defined quantisation tables.
Chirila-Rus A.
Masschelein B.
Osorio Roberto
Vanhoof B.
No associations
LandOfFree
The FlexWave-ll: a wavelet-based compression engine does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The FlexWave-ll: a wavelet-based compression engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The FlexWave-ll: a wavelet-based compression engine will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-964337