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		<doi>10.1109/SIBGRAPI51738.2020.00025</doi>
		<citationkey>HaetingerGast:2020:ReKeIn</citationkey>
		<title>Regularized Kelvinlet inversion for real-time image deformation and video time warping</title>
		<format>On-line</format>
		<year>2020</year>
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		<author>Haetinger, Guilherme Gomes,</author>
		<author>Gastal, Eduardo S. L.,</author>
		<affiliation>Instituto de Informática - UFRGS</affiliation>
		<affiliation>Instituto de Informática - UFRGS</affiliation>
		<editor>Musse, Soraia Raupp,</editor>
		<editor>Cesar Junior, Roberto Marcondes,</editor>
		<editor>Pelechano, Nuria,</editor>
		<editor>Wang, Zhangyang (Atlas),</editor>
		<e-mailaddress>ghaetinger@gmail.com</e-mailaddress>
		<conferencename>Conference on Graphics, Patterns and Images, 33 (SIBGRAPI)</conferencename>
		<conferencelocation>Porto de Galinhas (virtual)</conferencelocation>
		<date>7-10 Nov. 2020</date>
		<publisher>IEEE Computer Society</publisher>
		<publisheraddress>Los Alamitos</publisheraddress>
		<booktitle>Proceedings</booktitle>
		<tertiarytype>Full Paper</tertiarytype>
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		<versiontype>finaldraft</versiontype>
		<keywords>image warping, video retiming, time warp, image and video processing, interpolation.</keywords>
		<abstract>We present a novel approach for image deformation and video time warping. Our technique involves the inversion of the nonlinear regularized Kelvinlet equations, leading to higher-quality results and time/space efficiency compared to naive solutions. Inversion is performed by a per-pixel optimization process, being inherently parallel and achieving real-time performance in Full HD videos (over 300 fps). We demonstrate our method on a variety of images and videos, in addition to discussing some important technical and theoretical details.</abstract>
		<language>en</language>
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