Sketch-to-Design: Context-Based Part Assembly

• Published in: Computer graphics forum Vol. 32; no. 8; pp. 233 - 245
• Main Authors: Xie, Xiaohua, Xu, Kai, Mitra, Niloy J., Cohen-Or, Daniel, Gong, Wenyong, Su, Qi, Chen, Baoquan
• Format: Journal Article
• Language: English
• Published: Oxford Blackwell Publishing Ltd 01.12.2013
• Subjects: 1.3.5 [Computer Graphics]: Computational Geometry and Object Modelling-Constructive solid geometry; 3-D graphics; Analysis; Assembly; assembly-based modelling; context; Image processing systems; interface design; sketch-based modelling; Studies
• ISSN: 0167-7055; 1467-8659
• DOI: 10.1111/cgf.12200

Designing 3D objects from scratch is difficult, especially when the user intent is fuzzy and lacks a clear target form. We facilitate design by providing reference and inspiration from existing model contexts. We rethink model design as navigating through different possible combinations of part assemblies based on a large collection of pre‐segmented 3D models. We propose an interactive sketch‐to‐design system, where the user sketches prominent features of parts to combine. The sketched strokes are analysed individually, and more importantly, in context with the other parts to generate relevant shape suggestions via adesign galleryinterface. As a modelling session progresses and more parts get selected, contextual cues become increasingly dominant, and the model quickly converges to a final form. As a key enabler, we use pre‐learned part‐based contextual information to allow the user to quickly explore different combinations of parts. Our experiments demonstrate the effectiveness of our approach for efficiently designing new variations from existing shape collections. Designing 3D objects from scratch is difficult, especially when the user intent is fuzzy and lacks a clear target form. We facilitate design by providing reference and inspiration from existing model contexts. We rethink model design as navigating through different possible combinations of part assemblies based on a large collection of pre‐segmented 3D models. We propose an interactive sketch‐to‐design system, where the user sketches prominent features of parts to combine. The sketched strokes are analyzed individually, and more importantly, in context with the other parts to generate relevant shape suggestions via a design gallery interface. As a modeling session progresses and more parts get selected, contextual cues become increasingly dominant, and the model quickly converges to a final form. As a key enabler, we use pre‐learned part‐based contextual information to allow the user to quickly explore different combinations of parts.