详细信息
文献类型:期刊文献
中文题名:EO-1 Hyperion高光谱数据的预处理
英文题名:Preprocessing of EO-1 Hyperion Hyperspectral Data
第一作者:谭炳香
机构:[1]中国林科院资源信息所
年份:2005
期号:6
起止页码:36-41
中文期刊名:遥感信息
外文期刊名:Remote Sensing Information
收录:CSTPCD;;CSCD:【CSCD_E2011_2012】;
基金:国家863课题"遥感数据森林资源定量应用"(编号:2002AA133050)资助
语种:中文
中文关键词:高光谱;遥感;EO-1;Hyperion;大气纠正
外文关键词:hyperspectral remote sensing; EO-1 ; hyperion; atmospheric correction
分类号:P237.3
摘要:针对EO-1 Hyperion高光谱遥感数据的特点,在图像质量检查的基础上,对Hyperion图像进行了未定标和受水汽影响波段的去除、坏线修复、条纹去除、Smile效应降低、大气纠正等预处理,获得了较好质量的图像,为图像的进一步分析和实际应用提供了保障。结果表明图像大气纠正后光谱优化处理能进一步提高图像的质量。
EO-1's Hyperion sensor provides a new class of earth observation data for improved Earth surface characterization. Hyperion acquires data in pushbroom mode with two spectrometers, one in the visible and near infrared(VNIR)range and another in the shortwave infrared(SWIR)range. Although data has been radiometricly corrected, but preprocessing of Hyperion data is required before analysis. The preprocessing for Hyperion data includes: (1) Remove of zeroed bands and strongest water vapour bands; (2) Re-calibration, because the data were scaled by 40 for the VRIN and 80 for the SWIR; (3) Fixing of bad pixels; (4) Remove of dark vertical strips; (5) Hyperion Smile reduction; (6) Atmospheric correction and smooth of spectral bands; (7) Geometric correction. After the preprocessing 176 bands out of a total of 242 bands were ready for further analysis.
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