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		<identifier>8JMKD3MGPBW34M/3JM8H9L</identifier>
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		<citationkey>CampagnoloCeleFigu:2015:AcVoRe</citationkey>
		<title>Accurate Volume Rendering based on Adaptive Numerical Integration</title>
		<format>On-line</format>
		<year>2015</year>
		<numberoffiles>1</numberoffiles>
		<size>3643 KiB</size>
		<author>Campagnolo, Leonardo Quatrin,</author>
		<author>Celes, Waldemar,</author>
		<author>Figueiredo, Luiz Henrique de,</author>
		<affiliation>Tecgraf/PUC-Rio - Computer Science Department</affiliation>
		<affiliation>Tecgraf,  Computer Science Department, PUC-Rio</affiliation>
		<affiliation>IMPA</affiliation>
		<editor>Papa, Joćo Paulo,</editor>
		<editor>Sander, Pedro Vieira,</editor>
		<editor>Marroquim, Ricardo Guerra,</editor>
		<editor>Farrell, Ryan,</editor>
		<e-mailaddress>celes@tecgraf.puc-rio.br</e-mailaddress>
		<conferencename>Conference on Graphics, Patterns and Images, 28 (SIBGRAPI)</conferencename>
		<conferencelocation>Salvador</conferencelocation>
		<date>Aug. 26-29, 2015</date>
		<publisher>IEEE Computer Society</publisher>
		<publisheraddress>Los Alamitos</publisheraddress>
		<booktitle>Proceedings</booktitle>
		<tertiarytype>Full Paper</tertiarytype>
		<transferableflag>1</transferableflag>
		<contenttype>External Contribution</contenttype>
		<keywords>volume rendering,  adaptive integration, error control, Simpson's rule.</keywords>
		<abstract>We present an adaptive integration strategy to evaluate the volume rendering integral for regular volumes. We discuss different strategies to control the step size for both the inner and the outer integrals in the volume rendering equation. We report a set of computational experiments that compare both accuracy and efficiency of our proposal against Riemann summation with uniform step size. The comparisons are made for both CPU and GPU implementations and show that our method delivers both accuracy control and competitive performance.</abstract>
		<language>en</language>
		<targetfile>adaptive_vv.pdf</targetfile>
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