Converting DN value to reflectance directly by relative radiometric normalization

摘要：

An automatic algorithm for relative radiometric normalization is presented. It directly normalizes the digital numbers (DN) of images band-by-band to surface reflectance. A united linear relationship from DN of target images to surface reflectance of reference images is derived and the applicable conditions are given. The iteratively re-weighted multivariate alteration detection (IR-MAD) transformation is used to select pseudo-invariant features (PIFs) automatically. The procedure is simple, fast and completely automatic. The algorithm is applied to normalize two Landsat TM images, and the result is satisfactory in both accuracy and consistency.

关键词： surface reflectance relative radiometric normalization Multivariate Alteration Detection transformation

作者: Changmiao Hu Ping Tang

作者单位: Institute of Remote Sensing Applications Chinese Academy of Sciences Beijing, China

会议类型: 国际会议

会议名称: 2011 4th International Congress on Image and Signal Processing(第四届图像与信号处理国际学术会议 CISP 2011)

会议地点: 上海

会议语种:英文

页码: 1643-1647

在线出版日期: 2011-10-15（万方平台首次上网日期，不代表论文的发表时间）