摘要
遥感是一门先进而有效的信息获取技术。大范围的土地利用现状调查主要依靠从近期遥感影像上来提取所需信息。遥感影像在应用之前必须经过一些预处理,图像融合是遥感图像预处理的一个重要环节。本文介绍了遥感图像融合技术在土地利用现状调查中的应用,以QuickBird全色和多光谱影像为基础,通过应用遥感图像处理软件ER-DAS8.7版四种不同的融合方法进行融合实验,并结合主、客观方法来评价四种融合方法的融合结果,从而得出基于QuickBird影像的土地利用现状调查中较可取的遥感影像融合方法——小波融合法和主成分分析法。
Remote sensing is an advanced and efficient technology to obtain information. A wide range of land-use surveys rely mainly on extraction of information required from the recent remote sensing images. Some pretreatment is necessary before the application of remote sensing images. This article introduces the application of fusion technology of remote sensing image in the investigation of current land-use. The paper is based on the QuickBird panchromatic and multi-spectral image, by four different methods of software ERDAS8.7 version, combined with subjective and objective methods to evaluate the fusion results. The author has obtained that wavelet fusion method and principal component analysis are desirable image fusion method of the four different ones in large-scale survey of current land-use based on Quick-Bird image.
出处
《广东土地科学》
2008年第2期13-17,共5页
Guangdong Land Science
