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dc.contributor.authorChen, Zhonggui
dc.contributor.author陈中贵
dc.contributor.authorYuan, Zhan
dc.contributor.authorChoi, Yi-King
dc.contributor.authorLiu, Ligang
dc.contributor.authorWang, Wenping
dc.date.accessioned2013-01-15T09:02:37Z
dc.date.available2013-01-15T09:02:37Z
dc.date.issued2012-09
dc.identifier.citationIEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS,2012,18(10):1784-1796zh_CN
dc.identifier.issn1077-2626
dc.identifier.urihttp://dx.doi.org/10.1109/TVCG.2012.94
dc.identifier.uriWOS:000307298800017
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/14557
dc.description.abstractBlue noise point sampling is one of the core algorithms in computer graphics. In this paper, we present a new and versatile variational framework for generating point distributions with high-quality blue noise characteristics while precisely adapting to given density functions. Different from previous approaches based on discrete settings of capacity-constrained Voronoi tessellation, we cast the blue noise sampling generation as a variational problem with continuous settings. Based on an accurate evaluation of the gradient of an energy function, an efficient optimization is developed which delivers significantly faster performance than the previous optimization-based methods. Our framework can easily be extended to generating blue noise point samples on manifold surfaces and for multi-class sampling. The optimization formulation also allows us to naturally deal with dynamic domains, such as deformable surfaces, and to yield blue noise samplings with temporal coherence. We present experimental results to validate the efficacy of our variational framework. Finally, we show a variety of applications of the proposed methods, including nonphotorealistic image stippling, color stippling, and blue noise sampling on deformable surfaces.zh_CN
dc.description.sponsorshipNational Basic Research Program of China [2011CB302400]; Research Grant Council of Hong Kong [718209, 718010]; State Key Program of NSFC project [60933008]; NSFC [61070071, 61100105, 61100107]; Natural Science Foundation of Fujian Province of China [2011J05007, 2012J01291]zh_CN
dc.language.isoenzh_CN
dc.publisherIEEE COMPUTER SOCzh_CN
dc.subjectPoint samplingzh_CN
dc.subjectblue noisezh_CN
dc.subjectcentroidal Voronoi tessellationzh_CN
dc.subjectcapacity-constrainedzh_CN
dc.subjectquasi-Newton methodzh_CN
dc.titleVariational Blue Noise Samplingzh_CN
dc.typeArticlezh_CN


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