Real-time Anticipation of Occlusions for Automated Camera Control in Toric Space

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dc.contributor.authorBurg, Ludovicen_US
dc.contributor.authorLino, Christopheen_US
dc.contributor.authorChristie, Marcen_US
dc.contributor.editorPanozzo, Daniele and Assarsson, Ulfen_US
dc.date.accessioned2020-05-24T12:53:59Z
dc.date.available2020-05-24T12:53:59Z
dc.date.issued2020
dc.description.abstractEfficient visibility computation is a prominent requirement when designing automated camera control techniques for dynamic 3D environments; computer games, interactive storytelling or 3D media applications all need to track 3D entities while ensuring their visibility and delivering a smooth cinematic experience. Addressing this problem requires to sample a large set of potential camera positions and estimate visibility for each of them, which in practice is intractable despite the efficiency of ray-casting techniques on recent platforms. In this work, we introduce a novel GPU-rendering technique to efficiently compute occlusions of tracked targets in Toric Space coordinates - a parametric space designed for cinematic camera control. We then rely on this occlusion evaluation to derive an anticipation map predicting occlusions for a continuous set of cameras over a user-defined time window. We finally design a camera motion strategy exploiting this anticipation map to minimize the occlusions of tracked entities over time. The key features of our approach are demonstrated through comparison with traditionally used ray-casting on benchmark scenes, and through an integration in multiple game-like 3D scenes with heavy, sparse and dense occluders.en_US
dc.description.number2
dc.description.sectionheadersSpatial Queries
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume39
dc.identifier.doi10.1111/cgf.13949
dc.identifier.issn1467-8659
dc.identifier.pages523-533
dc.identifier.urihttps://doi.org/10.1111/cgf.13949
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13949
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectComputing methodologies → Rasterization
dc.subjectProcedural animation
dc.subjectApplied computing → Media arts
dc.titleReal-time Anticipation of Occlusions for Automated Camera Control in Toric Spaceen_US
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