Elastic Flattening of Painted Pottery Surfaces

dc.contributor.authorPreiner, Reinholden_US
dc.contributor.authorKarl, Stephanen_US
dc.contributor.authorBayer, Paulen_US
dc.contributor.authorSchreck, Tobiasen_US
dc.contributor.editorSablatnig, Robert and Wimmer, Michaelen_US
dc.date.accessioned2018-11-11T10:57:35Z
dc.date.available2018-11-11T10:57:35Z
dc.date.issued2018
dc.description.abstractGenerating flat images from paintings on curved surfaces is an important task in Archaeological analysis of ancient pottery. It allows comparing styles and painting techniques, e.g, for style and workshop attribution, and serves as basis for domain publications which typically use 2d images. To obtain such flat images from scanned textured 3d models of the pottery objects, current practice is to perform so-called rollouts using approximating shape primitives like cones or spheres, onto which the mesh surfaces are projected. While this process provides in intuitive deformation metaphor for the users, it naturally introduces unwanted distortions in the mapping of the surface, especially for vessels with high-curvature profiles. In this work, we perform an elastic flattening of these projected meshes, where stretch energy is minimized by simulating a physical relaxation process on a damped elastic spring model. We propose an intuitive contraction-directed physical setup which allows for an efficient relaxation while ensuring a controlled convergence. Our work has shown to produce images of significantly improved suitability for domain experts' tasks like interpretation, documentation and attribution of ancient pottery.en_US
dc.description.sectionheadersDigital Documentation for Conservation
dc.description.seriesinformationEurographics Workshop on Graphics and Cultural Heritage
dc.identifier.doi10.2312/gch.20181355
dc.identifier.isbn978-3-03868-057-4
dc.identifier.issn2312-6124
dc.identifier.pages165-168
dc.identifier.urihttps://doi.org/10.2312/gch.20181355
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/gch20181355
dc.publisherThe Eurographics Associationen_US
dc.subjectComputing methodologies
dc.subjectPhysical simulation
dc.subjectOptimization algorithms
dc.subjectTexturing
dc.titleElastic Flattening of Painted Pottery Surfacesen_US
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