期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2000
卷号：XXXIII Part B7(/1-4)
页码：1447-1451
出版社：Copernicus Publications
摘要：Calibrated airborne multispectral imagery has been used to retrieve and map biophysical parameters, specifically biomass, in a rice crop (Oryza sativa). Considerable amounts of image preprocessing, including correcting for image shear, camera misalignment and geometric and radiometric distortion was required. Conversion of image pixel digital numbers (DNs) to ground reflectance (R) was also necessary to combine data extracted from multi-temporal imagery, as was rectification to map coordinates using a selection o f ground control points (GCPs). This paper outlines the processes undertaken to generate calibrated surface reflectance data within the growing season of a single rice crop to support the retrieval and subsequent mapping of crop biomass at four stages during the gro wing season
关键词：Data pre-processing; Data calibration; Surface reflectance retrieval; Airborne imagery; Multi spectral ; high resolution imagery; Quantitative biomass estimation; Rice
