NDLI: Evaluation of compressed synthetic aperture radar imagery

Content Provider	IEEE Xplore Digital Library
Author	Kuperman, G.G. Penrod, T.D.
Copyright Year	1994
Description	Author affiliation: Armstrong Lab., Wright Res. & Dev. Center, Wright-Patterson AFB, OH, USA (Kuperman, G.G.)
Abstract	Three widely employed image compression techniques (Discrete Cosine Transform, DCT; Block Truncation Code, BTC; and Vector Quantization, VQ) were applied to 23 high resolution synthetic aperture radar images (SAR). Image quality metrics (Impulse Response, IPR, and Contrast Ratio, CR) were applied to the original (uncompressed) and the processed (compressed/reconstructed) images. Image fidelity measurements (Signal-to-Noise Ratio, SNR, and Mean Square Error, MSE) were also made to compare the two image sets. A constant false alarm rate (CFAR) automatic target cuer (ATC) algorithm, employing the Target-to-Background Interference Ratio, TBIR, statistic, was used to quantify scene clutter. Twelve trained and experienced imagery analysts served as subject matter experts in assessing the image interpretability of the two image sets. The study demonstrated the sensitivity of the IPR measurement to compression technique. Neither of the image fidelity measures were found to be useful predictors of either image quality or image interpretability. Significant changes in the expected FAR and image interpretability ratings were, however, found to be caused by the compression process.<>
Starting Page	319
Ending Page	326
File Size	638311
Page Count	8
File Format	PDF
ISBN	0780318935
DOI	10.1109/NAECON.1994.332875
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-05-23
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image coding Discrete cosine transforms Image quality Intellectual property Vector quantization Image resolution Signal resolution Synthetic aperture radar Chromium Image reconstruction
Content Type	Text
Resource Type	Article

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