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GPU enabled XDraw viewshed analysis
journal contribution
posted on 2023-05-18, 11:57 authored by Cauchi-Saunders, AJ, Ian LewisIan LewisViewshed Analysis is an important tool in the study of digital terrain visibility. Current methods rely on the CPU performing computations to linearly calculate visibility for a given position on a portion of digital terrain. The viewshed analysis process can be sped up through the use of a GPU to parallelize the visibility algorithms. This paper presents a novel conversion of the XDraw viewshed analysis algorithm to a parallel context in an effort to increase the speed at which a viewshed can be rendered. The algorithm executed faster than current linear methods and responded well to parallelization. We conclude that XDraw is applicable for GIS applications when rendered in a parallel context.
History
Publication title
Journal of Parallel and Distributed ComputingVolume
84Pagination
87-93ISSN
0743-7315Department/School
School of Information and Communication TechnologyPublisher
Academic Press Inc Elsevier SciencePlace of publication
525 B St, Ste 1900, San Diego, USA, Ca, 92101-4495Rights statement
Copyright 2015 Elsevier IncRepository Status
- Restricted