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Object-based algorithms and methods for quantifying urban growth pattern using sequential satellite images

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Previously, urban growth pattern is described and measured by the pixel-by-pixel comparison of satellite images. The geographic extent, patterns and types of urban growth are derived from satellite images separated in time. However, the pixel-by-pixel comparison approach suffers from several drawbacks. Firstly, slight error in image geo-reference can cause false detection of changes. Secondly, it's difficult to recognize and correct artifact changes induced by data noise and data processing errors. Thirdly, only limited information can be derived. In this paper, we present a new objectbased method to describe and quantify urban growth patterns. The different types of land cover are classified from sequential satellite images as urban objects. The geometric and shape attributes of objects and the spatial relationship between them are employed to identify the different types of urban growth pattern. The algorithms involved in the object-based method are implemented by using C++ programming language and the software user interface is developed by using ArcObjects and VB.Net. A simulated example is given to demonstrate the utility and effectiveness of this new method.

源语言英语
主期刊名Remote Sensing and Modeling of Ecosystems for Sustainability V
DOI
出版状态已出版 - 2008
已对外发布
活动Remote Sensing and Modeling of Ecosystems for Sustainability V - San Diego, CA, 美国
期限: 13 8月 200813 8月 2008

出版系列

姓名Proceedings of SPIE - The International Society for Optical Engineering
7083
ISSN(印刷版)0277-786X

会议

会议Remote Sensing and Modeling of Ecosystems for Sustainability V
国家/地区美国
San Diego, CA
时期13/08/0813/08/08

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