A simple positional accuracy measure for linear features

被引：235

作者：

Goodchild, MF ^{[1
]}

Hunter, GJ ^{[1
]}

机构：

[1] UNIV MELBOURNE,DEPT GEOMAT,CTR GIS & MODELING,PARKVILLE,VIC 3052,AUSTRALIA

来源：

INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE | 1997年 / 11卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1080/136588197242419

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper we propose a simple technique for assessing the positional accuracy of digitized linear features. The approach relies on a comparison with a representation of higher accuracy, and estimates the percentage of the total length of the low accuracy representation that is within a specified distance of the high accuracy representation. The approach deals successfully with three deficiencies of other methods: it is statistically based; is relatively insensitive to extreme outliers; and does not require matching of points between representations. It can be implemented using standard functions and a standard scripting language in any raster or vector GIS. We present the results of a test using data from the Digital Chart of the World.

引用

页码：299 / 306

页数：8