Landsat-8姿态抖动对多光谱影像配准影响  

Impact Analysis of Multispectral Image Registration for Landsat-8 Caused by Satellite Attitude Jitter

作　　者：李山山[1] 冯钟葵[1] 彭嫚[1] 

机构地区：[1]中国科学院遥感与数字地球研究所,北京100094

出　　处：《遥感信息》2016年第3期9-15,共7页Remote Sensing Information

基　　金：国家自然科学基金(41301383)

摘　　要：鉴于遥感器姿态数据的准确性对影像几何定位的重要性,该文对Landsat-8卫星成像过程中,姿态抖动对多光谱影像配准的影响进行评价和分析。首先介绍了美国地质调查局(USGS)对Landsat-8卫星姿态抖动处理方法;其次,从Landsat-8陆地成像仪(OLI)的多光谱影像入手,基于蒙特卡洛数值模拟及Landsat-8真实影像,定量分析了姿态数据高频抖动对Landsat-8OLI数据波段间配准造成的误差;最后,通过模拟改变卫星姿态测量频率,进一步分析卫星抖动处理在不同频率时对抖动误差去除的适应性。Landsat-8卫星姿态抖动配准精度评估及处理方法的适应性分析,可为提高国产卫星姿态抖动处理能力及多光谱影像配准精度提供有益借鉴。Error of multispectral images registration caused by attitude jitter during imaging processing of Landsat-8 was assessed in this paper.Firstly,a framework of jitter detection and compensation for Landsat-8satellite provided by USGS was introduced.Secondly,the evaluation for jitter processing was proposed based on Operational Land Imager(OLI)multispectral images using parallax between two different bands in the Monte Carlo synthetic and real Landsat-8images.Finally,applicability of the processing technique was further studied with different measuring frequency of the attitude.The research provides the helpful reference for the processing of the attitude jitter and improving registration accuracy of multispectral imagesfor Chinabuilt satellites.

关 键 词：Landsat-8 姿态抖动 影像配准 波段视差 蒙特卡洛 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]