The Xiemisitai area, West Junggar, Xinjiang, China, is situated at a potential copper mineralization zone in association with small granitic intrusions. In order to identify the alteration zones and mineralization characteristics of the intrusions, Landsat Enhanced Thematic Mapper (ETM+) and Quickbird data of the study area were evaluated in mapping lithological units, small intrusions, and alt...

The occurrence and spatial arrangement of post-fire alive residual stands affect the recolonization of trees and animals of burned areas in boreal ecosystems. Because the analysis of residual stands in the field is prohibitively expensive we lack understanding on how residual stands are distributed and why. Here, we explore the use of high-resolution Quickbird satellite imagery in conjunction w...

In this article, we present the use of the Automatic Ground control points Extraction technique (AGE) for increasing the automation in the geometric correction of high-resolution satellite imagery. The method is based on an image-to-image matching between the satellite data and an already geocoded image (i.e., a digital orthophoto). By using an adaptive least squares matching algorithm which im...

DISCLAIMER This document describes work undertaken as part of a programme of study at the Faculty of Geo-Information Science and Earth Observation of the University of Twente. All views and opinions expressed therein remain the sole responsibility of the author, and do not necessarily represent those of the Faculty. i ABSTRACT 2.5D building modelling is of great interest for visualization, simu...