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Proceedings Paper

Pattern analysis of geo-referenced motion processes
Author(s): Hong Wang; Chengqi Cheng; Tinghua Ai
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Paper Abstract

Spatial motion is a part of dynamic geographic phenomena which could be directly observed by human on a certain geographic scale. Most motion processes are generally regulated by external geographical environment, or some social criterions. A geo-referenced pattern states an argument that the similar motion processes perhaps have homological motion characteristics, patterns, trends, and etc. Since this paper concentrates on process model of motion phenomena, firstly we introduce some descriptors for expressing motion process, which include motion trajectory, process area, and process extent. The second, in order to describe a correlation between motion process and geographical feature, we introduce an initial concept of constrained geometry, which is consisted of constrained point, constrained line, and constrained area. Based on definition of constrained geometry, the computing models for three motion patterns named as location-referenced pattern, path-referenced pattern, and region-referenced pattern are constructed. In the end, we use historical typhoon data within the past 3 years from 2004 to 2006 for an experiment, in which 75 typhoon activities are taken as the example for exemplifying the validation of region-referenced motion pattern. The results confirm that the existent region of typhoon activities in a year is similar enough to other years.

Paper Details

Date Published: 16 October 2009
PDF: 8 pages
Proc. SPIE 7492, International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining, 74923W (16 October 2009); doi: 10.1117/12.838124
Show Author Affiliations
Hong Wang, Peking Univ. (China)
Wuhan Univ. (China)
Chengqi Cheng, Peking Univ. (China)
Tinghua Ai, Wuhan Univ. (China)


Published in SPIE Proceedings Vol. 7492:
International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining
Yaolin Liu; Xinming Tang, Editor(s)

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