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		<doi>10.1109/SIBGRA.2004.1352976</doi>
		<citationkey>FerisRaskTanTurk:2004:SpReRe</citationkey>
		<title>Specular reflection reduction with multi-flash imaging</title>
		<format>On-line</format>
		<year>2004</year>
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		<author>Feris, Rogerio Schmidt,</author>
		<author>Raskar, Ramesh,</author>
		<author>Tan, Kar-Han,</author>
		<author>Turk, Matthew,</author>
		<affiliation>University of California, Santa Barbara,</affiliation>
		<affiliation>Mitsubish Electric Research Labs</affiliation>
		<affiliation>University of Illinois, Urbana-Champaign,</affiliation>
		<editor>Araújo, Arnaldo de Albuquerque,</editor>
		<editor>Comba, João Luiz Dihl,</editor>
		<editor>Navazo, Isabel,</editor>
		<editor>Sousa, Antônio Augusto de,</editor>
		<e-mailaddress>rferis@cs.ucsb.edu</e-mailaddress>
		<conferencename>Brazilian Symposium on Computer Graphics and Image Processing, 17 (SIBGRAPI) - Ibero-American Symposium on Computer Graphics, 2 (SIACG)</conferencename>
		<conferencelocation>Curitiba, PR, Brazil</conferencelocation>
		<date>17-20 Oct. 2004</date>
		<publisher>IEEE Computer Society</publisher>
		<publisheraddress>Los Alamitos</publisheraddress>
		<booktitle>Proceedings</booktitle>
		<tertiarytype>Full Paper</tertiarytype>
		<transferableflag>1</transferableflag>
		<versiontype>finaldraft</versiontype>
		<keywords>specularities, multi-flash.</keywords>
		<abstract>We present a novel method to reduce the effect of specularities in digital images. Our approach relies on a simple modification of the capture setup: a multi-flash camera is used to take multiple pictures of the scene, each one with a differently positioned light source. We then formulate the problem of specular highlights reduction as solving a Poisson equation on a gradient field obtained from the input images. Experimental results are demonstrated on real and synthetic images. The entire setup can be conceivably packaged into a self-contained device, no larger than existing digital cameras.</abstract>
		<language>en</language>
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