DEM extraction and accuracy evaluation based on IKONOS stereo-pairs

Author

Zhao Feifei ; Hu Tiejun

Author_Institution

Inst. of Remote Sensing & Digital Earth, Beijing, China

fYear

2013

fDate

23-24 Dec. 2013

Firstpage

155

Lastpage

158

Abstract

A novel method to extract DEM based on IKONOS stereo-pairs is proposed. And its accuracy is assessed adopting checkpoint, profile and image analysis methods, respectively. Results show that the changes of elevation and image color of extracted DEM are basically agreement with the topographic map, but the latter has significantly detailed feature; the error in areas of larger terrain fluctuation is bigger than that in flat areas. It is not only fast and efficient to extract DEM based on IKONOS stereo-pairs, but also applicable to a wide range, which can meet some specific needs.

Keywords

digital elevation models; geophysical image processing; image colour analysis; stereo image processing; terrain mapping; topography (Earth); DEM extraction; IKONOS stereo-pairs; accuracy evaluation; digital elevation model; image analysis method; image color; profile analysis method; terrain fluctuation; topographic map; Accuracy; Image color analysis; Instrumentation and measurement; Mathematical model; Polynomials; Remote sensing; Satellites; DEM; IKONOS; Rational Function Model; stereo-pairs;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement, Sensor Network and Automation (IMSNA), 2013 2nd International Symposium on

Conference_Location

Toronto, ON

Type

conf

DOI

10.1109/IMSNA.2013.6743240

Filename

6743240