Geoinformatics
Online ISSN : 1347-541X
Print ISSN : 0388-502X
ISSN-L : 0388-502X
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Volume 28, Issue 2
Displaying 1-5 of 5 articles from this issue
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Cover (GEOINFORMATICS 2017 Vol28. No.2)
CONTENTS
Article
  • Evaluating Parameters for BS-Horizon Surface Generation Using Elevation Data
    TRAN Thi An, MASUMOT Shinji, RAGHAVAN Venkatesh, NONOGAKI Susumu, YONE ...
    2017 Volume 28 Issue 2 Pages 31-50
    Published: June 25, 2017
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6010/geoinformatics.28.2_31
    JOURNAL FREE ACCESS
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    In order to create reliable DEM from limited altitude data, it is necessary to effectively use the curved surface estimation method. One of the methods available for estimating DEM using altitude data is BS-Horizon (Nonogaki et al., 2012) which is based on cubic B-spline and exterior penalty function. In this study, the parameter settings for the estimating DEM using the BS-Horizon surface interpolation method were investigated. The experiments were carried out using field topographic survey data as elevation constraint condition and also incorporating inequality constraints based contextual relationship denoted by topographic contours. The parameters investigated include numbers elevation points used for spline estimation, the degree of satisfaction of the data and the smoothness of curved surface. We examined the influence of each parameter setting in detail and evaluated appropriate parameter setting criteria for DEM generation.

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