Lifting freehand concept sketches into 3D
| Autor: | Adrien Bousseau, Yulia Gryaditskaya, Felix Hähnlein, Alla Sheffer, Chenxi Liu |
|---|---|
| Přispěvatelé: | University of Surrey (UNIS), Université Côte d'Azur (UCA), GRAPHics and DEsign with hEterogeneous COntent (GRAPHDECO), Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), University of British Columbia (UBC), European Project: 714221,H2020 Pilier ERC,ERC-2016-STG-714221,D3(2017) |
| Rok vydání: | 2020 |
| Předmět: |
Computer science
product design 02 engineering and technology Non-photorealistic rendering Sketch-based modeling Intersection Search algorithm Shape modeling 0202 electrical engineering electronic engineering information engineering Leverage (statistics) Computer vision 3D reconstruction Product design business.industry [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV] 020207 software engineering design sketching Computer Graphics and Computer-Aided Design [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR] Visualization View synthesis line drawing sketching Artificial intelligence sketch-based modeling business OPAL-Meso |
| Zdroj: | ACM Transactions on Graphics ACM Transactions on Graphics, Association for Computing Machinery, 2020, Proceedings of SIGGRAPH Asia, ⟨10.1145/3414685.3417851⟩ ACM Transactions on Graphics, 2020, Proceedings of SIGGRAPH Asia, ⟨10.1145/3414685.3417851⟩ |
| ISSN: | 0730-0301 1557-7368 |
| DOI: | 10.1145/3414685.3417851 |
| Popis: | International audience; We present the first algorithm capable of automatically lifting real-world, vector-format, industrial design sketches into 3D. Targeting real-world sketches raises numerous challenges due to inaccuracies, use of overdrawn strokes, and construction lines. In particular, while construction lines convey important 3D information, they add significant clutter and introduce multiple accidental 2D intersections. Our algorithm exploits the geometric cues provided by the construction lines and lifts them to 3D by computing their intended 3D intersections and depths. Once lifted to 3D, these lines provide valuable geometric constraints that we leverage to infer the 3D shape of other artist drawn strokes. The core challenge we address is inferring the 3D connectivity of construction and other lines from their 2D projections by separating 2D intersections into 3D intersections and accidental occlusions. We efficiently address this complex combinatorial problem using a dedicated search algorithm that leverages observations about designer drawing preferences , and uses those to explore only the most likely solutions of the 3D intersection detection problem. We demonstrate that our separator outputs are of comparable quality to human annotations, and that the 3D structures we recover enable a range of design editing and visualization applications, including novel view synthesis and 3D-aware scaling of the depicted shape. |
| Databáze: | OpenAIRE |
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