@InProceedings{CombaStol:1993:AfArAp,
author = "Comba, Jo{\~a}o Luiz Dihl and Stolfi, Jorge",
affiliation = "{Laborat{\'o}rio de Computa{\c{c}}{\~a}o Gr{\'a}fica
(LCG-COPPE) da Universidade Federal do Rio de Janeiro} and
{Departamento da Ci{\^e}ncia da Computa{\c{c}}{\~a}o (DCC) da
Universidade Estadual de Campinas (UNICAMP)}",
title = "Affine arithmetic and its applications to computer graphics",
booktitle = "Anais...",
year = "1993",
editor = "Figueiredo, Luiz Henrique de and Gomes, Jonas de Miranda",
pages = "9--18",
organization = "Simp{\'o}sio Brasileiro de Computa{\c{c}}{\~a}o Gr{\'a}fica e
Processamento de Imagens, 6. (SIBGRAPI)",
publisher = "Sociedade Brasileira de Computa{\c{c}}{\~a}o",
address = "Porto Alegre",
keywords = "computer graphics, construction of octrees, implicit surfaces,
arithmetic.",
abstract = "We describe a new method for numeric computations, which we call
affine arithmetic (AA). This model is similar to standard interval
arithmetic, to the extent that it automatically keeps track or
rounding and truncation errors for each computed value. However,
by taking into account correlations between operands and
sub-formulas, AA is able to provide much tighter bounds for the
computed quantities, with errors that are approximately quadratic
in the uncertainty of the input variables. We also describe two
applications of AA to computer graphics problems, where this
feature is particularly valuable: namely, ray tracing and the
construction of octrees for implicit surfaces.",
conference-location = "Recife, PE, Brazil",
conference-year = "19-22 Oct. 1993",
isbn = "978-85-7669-271-3",
language = "en",
ibi = "8JMKD3MGPBW34M/3D6UQ68",
url = "http://urlib.net/ibi/8JMKD3MGPBW34M/3D6UQ68",
targetfile = "2 Affine arithmetic and its applications to computer
graphics.pdf",
type = "Rendering",
volume = "1",
urlaccessdate = "2024, May 03"
}