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SAR image data compression using a tree-structured wavelet transform
DOI:10.1109/36.911112.png)
摘要
En 中文
SAR image compression is very important in reducing the costs of data storage and transmission in relatively slow channels. In this paper, we propose a compression scheme driven by texture analysis, homogeneity mapping and speckle noise reduction within the wavelet framework. The image compressibility and interpretability are improved by incorporating speckle reduction into the compression scheme. We begin with the classical set partitioning in hierarchical trees (SPIHT) wavelet compression scheme, and modify it to control the amount of speckle reduction, applying different encoding schemes to homogeneous and nonhomogeneous areas of the scene. The results compare favorably with the conventional SPIHT wavelet and the JPEG compression methods.
Keyword:
image texture
synthetic aperture radar (SAR)
SAR image data compression
speckle reduction
set partitioning in hierarchical trees (SPIHT)
wavelets
期刊
IF:
8.6
论文数:
2.1W
被引数:
10.7W
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