3-D expression of relief in Landsat Thematic Mapper and SPOT P images

M. Luz Gil Docampo; Julia Armesto Gonzalez; Ignacio Canas Guerrero

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3-D expression of relief in Landsat Thematic Mapper and SPOT P images

机译：3-D expression of relief in Landsat Thematic Mapper and SPOT P images

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摘要

Perceptual problems of viewing topography on geoimages are caused by illumination from the southeast during data collection. This problem affects the majority of satellite images. The aim of this work is to obtain a stereoscopic effect of shaded relief in such images. Techniques available in commercial digital processing programs are used in the absence of a digital elevation model. The images used are taken by the Landsat TM and SPOT P satellites; the software used was the EASI-PACE and ACE programs (Canadian PCI Geomatics Group). The pseudoscopic effect is solved by using the first principal component obtained in a principle components analysis of the three channels, resulting from the weighted merging of the Landsat and SPOT data. The map obtained provides the observer a view with shaded relief.

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来源
《Optical Engineering》 |2005年第4期|047003-1-047003-5-0|共5页
作者
M. Luz Gil Docampo; Julia Armesto Gonzalez; Ignacio Canas Guerrero;
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作者单位

University of Santiago de Compostela Department of Agroforestry Engineering Superior Polytechnic School Campus s/n 27002 Lugo, Spain;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学仪器;
关键词
shaded relief; pseudoscopic effect; fusion; principal components analysis;

3-D expression of relief in Landsat Thematic Mapper and SPOT P images

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