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Fusion of block adaptive and vector quantizer for efficient SAR data compression

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2 Author(s)
A. Moreira ; Inst. for Radio Frequency Technol., German Aerosp. Res. Establ., Oberpfaffenhofen, Germany ; F. Blaser

The paper proposes a new approach for efficient SAR raw data compression which consists of first compressing the raw data with the block adaptive quantizer (BAQ) and then performing a compression with vector quantizer (VQ) algorithm. This combination is computationally efficient since only one small codebook is needed for the coding which is independent from the data set. A signal-to-distortion ratio better than 12 dB and 6 dB is achieved for a data rate of 2 and 1 bit/sample, respectively

Published in:

Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International

Date of Conference:

18-21 Aug 1993