Intelligent low rate compression of speckled SAR imagery

R. Ives, P. Eichel, N. Magotra
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引用次数: 5

Abstract

This paper describes a compression technique under development at Sandia National Laboratories for the compression of complex synthetic aperture radar (SAR) imagery at very low overall bit rates. The methods involved combine several elements of existing and new lossy and lossless compression schemes in order to achieve an overall compression ratio of large SAR scenes of at least 50:1, while maintaining reasonable image quality. It is assumed that the end user will be primarily interested in specific regions of interest within the image (called "chips"), but that the context in which these chips appear within the entire scene is also of importance to an image analyst. The term "intelligent" is used to signify an external cuer which locates the chips of interest.
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斑点SAR图像的智能低速率压缩
本文描述了桑迪亚国家实验室正在开发的一种压缩技术,用于在非常低的总体比特率下压缩复杂合成孔径雷达(SAR)图像。所涉及的方法结合了现有和新的有损和无损压缩方案的几个要素,以实现大型SAR场景的整体压缩比至少为50:1,同时保持合理的图像质量。假设最终用户将主要对图像中感兴趣的特定区域(称为“芯片”)感兴趣,但这些芯片在整个场景中出现的上下文对图像分析人员也很重要。“智能”一词指的是一种能够定位感兴趣的芯片的外部cuer。
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Notice of RetractionMultichannel super high resolution. Novel channel equalization and multidimensional arbitrary pattern synthesis Improving the sidelobes of arrays fed by multiple-beam beam formers Antenna measures of merit for ultra-wide synthetic aperture radar Intelligent low rate compression of speckled SAR imagery Airborne ground moving target indication using non-side-looking antennas
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