Effects of different sampling densities and pixel size on kriging interpolation for predicting elevation

Andie Setiyoko, Aniati Murni Arymurthy, Rahmat Arief

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Elevation of earth surface can be modeled into several forms, i.e. height points, contour, Digital Elevation Model (DEM). DEM as a continuous type of elevation data is generated mainly from height point data. The accuracy of DEM depends on many factors; which one of them is the level of sampling density of the height point used as the input of interpolation processing. Height point itself can be generated from various remote sensing technologies. Stereo optical is very common nowadays in producing DEM data. Spatial resolution or pixel size specification of the stereo optical image might effect on the level of sampling density of height point generated. This research is aimed to analyze the influence of different sampling density generated from some optical stereo images and its pixel size in generating DEM as a model of continuous elevation. The experiment is using three types of optical stereo data which has different sampling density and spatial resolution. The result is shown that the more sampling density the more accurate DEM generated, and the more detail pixel size the more accurate DEM generated. Meanwhile, two data with the same pixel size might significantly produce a different accuracy of DEM. It can be caused by another factor such as input data errors and processing stage errors.

Original languageEnglish
Title of host publication2018 International Conference on Signals and Systems, ICSigSys 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages73-78
Number of pages6
ISBN (Electronic)9781538656891
DOIs
Publication statusPublished - 4 Jun 2018
Event2nd International Conference on Signals and Systems, ICSigSys 2018 - Bali, Indonesia
Duration: 1 May 20183 May 2018

Publication series

Name2018 International Conference on Signals and Systems, ICSigSys 2018 - Proceedings

Conference

Conference2nd International Conference on Signals and Systems, ICSigSys 2018
CountryIndonesia
CityBali
Period1/05/183/05/18

Keywords

  • DEM
  • kriging
  • pixel size
  • sampling density

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