TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Visually lossless compression of synthetic aperture radar images

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
Otsikko8th International Conference on Antenna Theory and Techniques, ICATT'11
Sivut263-265
Sivumäärä3
DOI - pysyväislinkit
TilaJulkaistu - 2011
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
Tapahtuma8th International Conference on Antenna Theory and Techniques, ICATT'11 - Kyiv, Ukraina
Kesto: 20 syyskuuta 201123 syyskuuta 2011

Conference

Conference8th International Conference on Antenna Theory and Techniques, ICATT'11
MaaUkraina
KaupunkiKyiv
Ajanjakso20/09/1123/09/11

Tiivistelmä

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.