摘要
机载扫描系统在很多方面具有比较大的自由度,由此引起图像的各种畸变,使图像质量降低。为了提高解析和判读效果,需要对由航空扫描仪产生的磁带数字图像进行一系列的预处理。本文介绍有关预处理的方法及实验结果,在经过一系列的预处理之后,图像质量有了显著提高,这些方法对于由航空扫描仪产生的遥感图像数据处理具有普遍适用性。使用的实验数据为北京地区和新彊地区获取的8个波段多光谱遥感数据。
The image of an airborne multispectral scanner may distort due to the large attitude variation with time and the effect of the atmospheric interference.To make full use of the image data for analysis and interpretation, the raw data must be carefully processed by a series of methods.The purpose of this paper is to suggest a complere series of preprocessing procedures.To evaluate the proposed overall methods, the data of Beijing and Xinjiang areaes obtained by an 8-channel airborne multispectral scanner is used. The test result shows that both the image quality and accuracy are obviously improved.
出处
《自动化学报》
EI
CSCD
北大核心
1992年第1期124-128,共5页
Acta Automatica Sinica
关键词
航空
遥感
图象处理
Radiometric normalization
tangent correction
modulation transfer function correction
color enhancement.
