基于极化相似性参数的多极化SAR图像变化检测方法

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中图分类号：TP751.1 文献标志码：A 文章编号：2095-2945（2025）27-0028-06

Abstract：Inthispaper，thepolarizationsimilarityparametersbetweenlakeandiceimagesandtypicallakeandicetargets arecalculatedbycalculatingthecoherencematrixofmulti-polarizationSARdata.Thepolarizationsimilarityparametersare introducedintolakeandicechangedetectioninmulti-polarizationSARimages，andachangedetectionmethodbasedon wavelettransformandadaptive weightweightingisproposed.Inthispaper，thismethodisaplied’tolakeandicechange detectioninSentinel-1AIWdual-polarizationSARimages.Whilemaintainingalowfalsealarmrate，itefectivelyreducesthe misseddetectionrate，improvestheaccuracyofchangedetection，andefectivelyimprovestheproblemsofmisseddetectionand a large number of false alarms in traditional unipolar images in lake and ice change detection.

Keywords：multipolarization; SAR；polarization similarity parameter； change detection; wavelet transform

极化合成孔径雷达（PolarimetricSyntheticAper-tureRadar，简称极化SAR）具有全天时、全天候的优点，对地物结构和特性较为敏感，可广泛应用于灾害评估、城市规划、环境监测等方面。（剩余6483字）