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%0 Conference Proceedings
%4 sid.inpe.br/sibgrapi@80/2007/09.27.20.08
%2 sid.inpe.br/sibgrapi@80/2007/09.27.20.08.14
%T Efficient viewshed computation on external memory DEM terrains
%D 2007
%8 Oct. 7-10, 2007
%A Magalhães, Mirella,
%A Magalhães, Salles,
%A Alvim, Marcus Vinicius,
%@affiliation Universidade Federal de Viçosa
%@affiliation Universidade Federal de Viçosa
%@affiliation Universidade Federal de Viçosa
%E Gonçalves, Luiz,
%E Wu, Shin Ting,
%B Brazilian Symposium on Computer Graphics and Image Processing, 20 (SIBGRAPI)
%C Belo Horizonte
%S Proceedings
%I Sociedade Brasileira de Computação
%J Porto Alegre
%K external memory, viewshed, DEM.
%X Many GIS applications require efficient algorithms to manipulate huge volume of data about terrains stored in external memory. One of these applications is the viewshed computation which consists in obtaining the points that can be viewed by a given point. In this paper, we present an efficient algorithm to compute the viewshed on huge terrains stored in external memory.
%@language en
%3 poster-Sibgrapi.pdf


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