PerceptualLift: Using hatches to infer a 3D organic shape from a sketch

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dc.contributor.authorButler, Taraen_US
dc.contributor.authorGuehl, Pascalen_US
dc.contributor.authorParakkat, Amal Deven_US
dc.contributor.authorCani, Marie-Pauleen_US
dc.contributor.editorCatalano, Chiara Evaen_US
dc.contributor.editorParakkat, Amal Deven_US
dc.date.accessioned2025-05-09T09:43:08Z
dc.date.available2025-05-09T09:43:08Z
dc.date.issued2025
dc.description.abstractIn this work, we investigate whether artistic hatching, popular in pen-and-ink sketches, can be consistently perceived as a depth cue. We illustrate our results by presenting PerceptualLift, a modeling system that exploits hatching to create curved 3D shapes from a single sketch. We first describe a perceptual user study conducted across a diverse group of participants, which confirms the relevance of hatches as consistent clues for inferring curvature in the depth direction from a sketch. It enables us to extract geometrical rules that link 2D hatch characteristics, such as their direction, frequency, and magnitude, to the changes of depth in the depicted 3D shape. Built on these rules, we introduce PerceptualLift, a flexible tool to model 3D organic shapes by simply hatching over 2D hand-drawn contour sketches.en_US
dc.description.sectionheadersExpressive Shape Modalities
dc.description.seriesinformationACM/EG Expressive Symposium - WICED: Eurographics Workshop on Intelligent Cinematography and Editing
dc.identifier.doi10.2312/exw.20251055
dc.identifier.isbn978-3-03868-271-4
dc.identifier.pages10 pages
dc.identifier.urihttps://doi.org/10.2312/exw.20251055
dc.identifier.urihttps://diglib.eg.org/handle/10.2312/exw20251055
dc.publisherThe Eurographics Associationen_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCCS Concepts: Computing methodologies → Shape modeling; Human-centered computing → Interactive systems and tools
dc.subjectComputing methodologies → Shape modeling
dc.subjectHuman centered computing → Interactive systems and tools
dc.titlePerceptualLift: Using hatches to infer a 3D organic shape from a sketchen_US
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