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Visually lossless compression of synthetic aperture radar images

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publication8th International Conference on Antenna Theory and Techniques, ICATT'11
Pages263-265
Number of pages3
DOIs
Publication statusPublished - 2011
Publication typeA4 Article in a conference publication
Event8th International Conference on Antenna Theory and Techniques, ICATT'11 - Kyiv, Ukraine
Duration: 20 Sep 201123 Sep 2011

Conference

Conference8th International Conference on Antenna Theory and Techniques, ICATT'11
CountryUkraine
CityKyiv
Period20/09/1123/09/11

Abstract

A task of visually lossless but, in fact, lossy compression of synthetic aperture radar (SAR) images corrupted by intensive speckle is considered. A method based on discrete cosine transform (DCT) applied in 8×8 blocks is proposed. The method is adapted to spatial DCT spectrum of speckle and its multiplicative nature. It is shown that the proposed method allows providing compression ratio (CR) of about 3.2⋯3.5 for simulated and real life SAR images which is sufficiently larger than for image lossless comp ression tech niqu es.