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Proceedings Paper

Stratified and automatic information extraction from high-resolution satellite imagery based on an object-oriented method
Author(s): Tao Jiang; Lei Fang; WenWen Ding
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Paper Abstract

High spatial resolution satellite imagery has been widely used in mapping, environmental monitoring, disaster management, city planning, because of its favorable visual effects, plentiful texture information, accurate positioning etc. Traditional classification methods which face to the medium/low-resolution satellite data have been proved not fit for the high resolution image processing. The object-oriented classification method can resistance the salt and pepper effect, because it based on patches of spectrally similar pixels which have been produced by image segmentation. In this paper, a hierarchical framework that based on the stratified classification idea is proposed and applied to the land cover mapping of city. This stratified framework integrates the object-oriented multi-scale segmentation technology and quantification of image object features. The scale parameter of segmentation is the key factor during the framework building. In the study, Scottsdale, Arizona state, USA, is selected as the study area because of its plentiful spatial features and beautiful sight. The overall accuracy of the land cover classification is 82.58%, the Kappa Coefficient is 0.80 and the user's accuracies of the most land-objects are exceeding 85%. The study is demonstrated using the object-oriented image analysis software, Definiens Developer 7.0, which can be integrated with other spatial data in vector-based geographical information system (GIS) environments.

Paper Details

Date Published: 3 November 2010
PDF: 7 pages
Proc. SPIE 7840, Sixth International Symposium on Digital Earth: Models, Algorithms, and Virtual Reality, 78401H (3 November 2010); doi: 10.1117/12.872946
Show Author Affiliations
Tao Jiang, Shandong Univ. of Science and Technology (China)
State Bureau of Surveying and Mapping (China)
Lei Fang, Shandong Univ. of Science and Technology (China)
WenWen Ding, Shandong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 7840:
Sixth International Symposium on Digital Earth: Models, Algorithms, and Virtual Reality
Huadong Guo; Changlin Wang, Editor(s)

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