Title :
The effect of codebook size on the vector quantization of SAR data
Author :
Jones, R.V. ; Vaughn, V.D. ; Frost, R.L. ; Chabries, D.M.
Author_Institution :
Unisys, Salt Lake City, UT, USA
Abstract :
The effect of the vector quantization (VQ) codebook (and codevector) size on the quality of synthetic-aperture radar (SAR) images formed from the compressed phase history data are shown. The reconstructed SAR images are compared to the original SAR image using the terrain and contrast ratios as measures of quality. Experiments indicate that image quality improves monotonically with increasing codevector size. The authors infer that compression ratios of 10:1 may be feasible for many applications
Keywords :
codes; data compression; encoding; radar systems; radar theory; SAR data; SAR images; codebook size; codevector; compressed phase history data; compression ratios; contrast ratios; image quality; synthetic-aperture radar; terrain ratio; vector quantization; Aperture antennas; History; Image coding; Image resolution; Layout; Radar antennas; Radar imaging; Speckle; Synthetic aperture radar; Vector quantization;
Conference_Titel :
Radar Conference, 1988., Proceedings of the 1988 IEEE National
Conference_Location :
Ann Arbor, MI
DOI :
10.1109/NRC.1988.10945
