SAR图像质量评价综述

Review on SAR Image Quality Assessment

由于特殊的成像方式,SAR图像与光学图像相比有许多不同特性,使得如何定量分析其图像质量水平成为难点,并严重影响SAR图像的应用。为此,在广泛文献调研的基础上,该文对SAR图像质量的主客观评价方法以及最新研究进展进行综述,以期更好地指导SAR图像解译工作。客观评价方面,对基本的评价指标进行了全面的归纳与总结,重点介绍以应用适合度为代表的综合客观评价方法,并讨论借鉴可见光、红外图像质量评价的SAR图像评价方法。主观评价方面,对主流的美国国家图像解译度分级标准指标的研究现状进行详细的归纳与总结。最后,分析当前SAR图像质量评价存在的问题,指出了该领域的发展趋势。

Due to the special imaging method,SAR image has many different characters from optical image,making it difficult to quantitatively measure the SAR image quality level,and the application of SAR image is severely influenced.On the basis of extensive literature investigation,this paper reviews the SAR image quality assessment methods of both objective and subjective evaluation,in order to better guide the SAR image interpretation.The objective evaluation part summarizes the basic image parameters and focuses on the introduction of comprehensive evaluation methods represented by＂application suitability＂.We also discuss SAR image assessment methods derived from visible IR sensors in detail.For subjective evaluation,different methods based on SAR NIIRS are reviewed.Finally,major problems in current research and future developments are discussed.