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dc.contributor.authorTheoktisto, Víctor
dc.contributor.authorFairén González, Marta
dc.contributor.authorNavazo Álvaro, Isabel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics
dc.identifier.citationTheoktisto, V.; Fairén, M.; Navazo, I. Hybrid Rugosity Mesostructures (HRMs) for fast and accurate rendering of fine haptic detail. "CLEI electronic journal", 2010, vol. 13, núm. 3, p. 1-12.
dc.description.abstractThe haptic rendering of surface mesostructure (fine relief features) in dense triangle meshes requires special structures, equipment, and high sampling rates for detailed perception of rugged models. Low cost approaches render haptic texture at the expense of fidelity of perception. We propose a faster method for surface haptic rendering using image-based Hybrid Rugosity Mesostructures (HRMs), paired maps with per-face heightfield displacements and normal maps, which are layered on top of a much decimated mesh, effectively adding greater surface detail than actually present in the geometry. The haptic probe’s force response algorithm is modulated using the blended HRM coat to render dense surface features at much lower costs. The proposed method solves typical problems at edge crossings, concave foldings and texture transitions. To prove the wellness of the approach, a usability testbed framework was built to measure and compare experimental results of haptic rendering approaches in a common set of specially devised meshes, HRMs, and performance tests. Trial results of user testing evaluations show the goodness of the proposed HRM technique, rendering accurate 3D surface detail at high sampling rates, deriving useful modeling and perception thresholds for this technique.
dc.format.extent12 p.
dc.publisherCentro Latinoamericano de Estudios en Informática
dc.subjectÀrees temàtiques de la UPC::Informàtica::Infografia
dc.subject.lcshRendering (Computer graphics)
dc.subject.lcshThree dimensional imaging
dc.subject.otherHaptic Rendering
dc.subject.otherDisplacement mapping
dc.titleHybrid Rugosity Mesostructures (HRMs) for fast and accurate rendering of fine haptic detail
dc.subject.lemacInfografia tridimensional
dc.contributor.groupUniversitat Politècnica de Catalunya. MOVING - Grup de Recerca en Modelatge, Interacció i Visualització en Realitat Virtual
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
upcommons.citation.authorTheoktisto, V.; Fairén, M.; Navazo, I.
upcommons.citation.publicationNameCLEI electronic journal

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