Quality evaluation of compressed optical and SAR images: JPEG vs. wavelets

Author

Datcu, M. ; Schwarz, G. ; Schmidt, K. ; Reck, C.

Author_Institution

DRD German Remote Sensing Data Center, German Aerosp. Res. Establ., Wessling, Germany

Volume

3

fYear

34881

fDate

10-14 Jul1995

Firstpage

1687

Abstract

Presents a comparison of compression algorithms using the discrete cosine transform-DCT (JPEG) and discrete wavelet transform-DWT applied to remotely sensed images. The statistical behaviors of the DCT and DWT are addressed and the implications for the performance of the image compression algorithms are compared for optical and SAR images. These SAR images were despeckled during compression. Qualitative and quantitative results are presented

Keywords

data compression; discrete cosine transforms; geophysical signal processing; geophysical techniques; image coding; optical information processing; radar imaging; remote sensing; remote sensing by radar; synthetic aperture radar; transforms; wavelet transforms; DCT; DWT; JPEG; SAR image; compression algorithm; data compression; despeckled; discrete cosine transform; discrete wavelet transform; geophysical measurement technique; image compression; optical imaging; quality evaluation; radar imaging; radar remote sensing; wavelets; Data compression; Discrete cosine transforms; Discrete wavelet transforms; Eigenvalues and eigenfunctions; Image coding; Karhunen-Loeve transforms; Optical sensors; Quantization; Transform coding; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International

Conference_Location

Firenze

Print_ISBN

0-7803-2567-2

Type

conf

DOI

10.1109/IGARSS.1995.523997

Filename

523997