Spherical interpolation over graphic processing units

Fei Ye, Xuan Shi, Shaowen Wang, Yan Liu, Su Yeon Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Spatial interpolation is a widely used GIS function for estimating values at locations where observed values are not available or adequate. One popular method for spatial interpolation is inverse distance weighted, which calculates estimated values based on a weighted sum of the values of a number of nearest neighbors that have observed values. This research focuses on solving a large-scale interpolation problem with a global coverage based on the inverse distance weighted method. Specifically, spherical distance is calculated instead of normal Euclidean distance commonly used in GIS software, which is necessary to find correct neighbors in the regions along the 180° longitude and in the polar areas. The computation of the global-scale interpolation based on spherical distance is intensive especially for achieving high-resolution results. This paper introduces how to accelerate such computation by exploiting massive parallelism provided by Graphic Processing Units (GPUs) with significant improvement of computational performance reported.

Original languageEnglish (US)
Title of host publicationProceedings of the ACM SIGSPATIAL 2nd International Workshop on High Performance and Distributed Geographic Information Systems, ACM SIGSPATIAL HPDGIS 2011
Pages38-41
Number of pages4
DOIs
StatePublished - Dec 19 2011
EventACM SIGSPATIAL 2nd International Workshop on High Performance and Distributed Geographic Information Systems, ACM SIGSPATIAL HPDGIS 2011 - Chicago, IL, United States
Duration: Nov 1 2011Nov 1 2011

Other

OtherACM SIGSPATIAL 2nd International Workshop on High Performance and Distributed Geographic Information Systems, ACM SIGSPATIAL HPDGIS 2011
CountryUnited States
CityChicago, IL
Period11/1/1111/1/11

Keywords

  • graphic processing units
  • high performance computing
  • inverse distance weighted
  • spatial interpolation

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Networks and Communications
  • Information Systems

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  • Cite this

    Ye, F., Shi, X., Wang, S., Liu, Y., & Han, S. Y. (2011). Spherical interpolation over graphic processing units. In Proceedings of the ACM SIGSPATIAL 2nd International Workshop on High Performance and Distributed Geographic Information Systems, ACM SIGSPATIAL HPDGIS 2011 (pp. 38-41) https://doi.org/10.1145/2070770.2070777