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A sketching interface for feature curve recovery of free-form surfaces

Ellen Dekkers, Leif Kobbelt, Richard Pawlicki, Randall C. Smith
2009 2009 SIAM/ACM Joint Conference on Geometric and Physical Modeling on - SPM '09  
effective feature curve recovery tool, we can quickly sketch a set of characteristic features on each input model which establishes the correspondence to a pre-defined template mesh and thus allows us  ...  Finally, we can use the feature curves and the shape model to implement an intuitive modeling metaphor to explore the shape space spanned by the input models.  ...  Acknowledgements We would like to thank General Motors R&D for their support.  ... 
doi:10.1145/1629255.1629285 dblp:conf/sma/DekkersKPS09 fatcat:6eohf4guxvaf3lb7lzydap4dj4

A sketching interface for feature curve recovery of free-form surfaces

Ellen Dekkers, Leif Kobbelt, Richard Pawlicki, Randall C. Smith
2011 Computer-Aided Design  
effective feature curve recovery tool, we can quickly sketch a set of characteristic features on each input model which establishes the correspondence to a pre-defined template mesh and thus allows us  ...  Finally, we can use the feature curves and the shape model to implement an intuitive modeling metaphor to explore the shape space spanned by the input models.  ...  Acknowledgements We would like to thank General Motors R&D for their support.  ... 
doi:10.1016/j.cad.2010.10.007 fatcat:yfpdmgcm4bhcvp4rpip4h3c36i

Sketching Variational Hermite-RBF Implicits [article]

Emilio Vital Brazil, Ives Macedo, Mario Costa Sousa, Luiz Henrique De Figueiredo, Luiz Velho
2010 Sketch-Based Interfaces and Modeling  
We present techniques for modeling Variational Hermite Radial Basis Function (VHRBF) Implicits using a set of sketch-based interface and modeling (SBIM) operators.  ...  In addition, it has a number of desirable properties such as parameter-free modeling, invariance under geometric similarities on the input strokes, suitable estimation of differential quantities, good  ...  We also thank the anonymous reviewers for their careful and valuable comments and suggestions.  ... 
doi:10.2312/sbm/sbm10/001-008 fatcat:qpqswigvv5dn7n4rhrpbhsioti

User-guided free-form asset modelling [article]

Daniel Beale
2017 arXiv   pre-print
In this paper a new system for piecewise primitive surface recovery on point clouds is presented, which allows a novice user to sketch areas of interest in order to guide the fitting process.  ...  to fill large holes on occluded surfaces using free-form input.  ...  The new system introduced in this paper allows a user to guide fitting through a collection of free form curves.  ... 
arXiv:1701.05754v1 fatcat:cinljan2n5civeun4kgefch474

Sketch-based free-form shape modelling with a fast and stable numerical engine

Yong-Jin Liu, Kai Tang, Ajay Joneja
2005 Computers & graphics  
In this paper, we present a feature-based free-form shape modelling technique based on solving a fundamental problem of reconstructing the depth information from 2D sketch planes.  ...  continuity over the recovered 3D surface and (2) formulates the 1D salient open free-form curves and salient corners as linear sketch constraints.  ...  In this paper we also define and discretize a set of point/ curve features in linear form.  ... 
doi:10.1016/j.cag.2005.08.007 fatcat:krf6uv35dfgihgfefxlp3tefj4

SymmSketch: Creating symmetric 3D free-form shapes from 2D sketches

Yongwei Miao, Feixia Hu, Xudong Zhang, Jiazhou Chen, Renato Pajarola
2015 Computational Visual Media  
This paper presents SymmSketch-a system for creating symmetric 3D free-form shapes from 2D sketches.  ...  Using one pair of symmetric curves and one pair of general curves, an improved cross-sectional surface blending scheme is applied to generate a parametric surface for each component.  ...  The 3D models are courtesy of the Aim@Shape, Stanford University and Princeton University.  ... 
doi:10.1007/s41095-015-0002-8 fatcat:wtya3drf25dmbdu2wrd2wvlw5a

Nanofluid Structural Forces Alter Solid Wetting, Enhancing Oil Recovery

Pingkeng Wu, Alex D. Nikolov, Darsh T. Wasan
2022 Colloids and Interfaces  
One striking feature leading to the outstanding efficiency of nanofluids in enhanced oil recovery is the structure of nanoparticles, which induces oscillatory structural forces in the confined space between  ...  Nanofluids have attracted significant research interest for their promising application in enhanced oil recovery.  ...  Cho and Hua Zhang for their research contributions illustrating the role of the oscillatory structural forces in the practical application of nanofluids for wetting of solids and enhanced oil recovery.  ... 
doi:10.3390/colloids6020033 fatcat:g2adkst4kfdwxd4bcsqeu4pcca

True2Form

Baoxuan Xu, William Chang, Alla Sheffer, Adrien Bousseau, James McCrae, Karan Singh
2014 ACM Transactions on Graphics  
Our approach to infer 3D form from 2D drawings is a novel mathematical framework of insights derived from perception and design literature.  ...  Balancing regularity enforcement against sketch fidelity at each step allows us to correct for inaccuracy inherent in free-hand sketching.  ...  We thank Koos Eissen, Roselien Steur and Spencer Nugent for allowing us to use their concept sketches. Many thanks to Xch'e' Hernandez Simper, and Cloud Shao for generating input drawings.  ... 
doi:10.1145/2601097.2601128 fatcat:ef365m3lafaypiqsrzvmvltrya

Sketching reality

Xuejin Chen, Sing Bing Kang, Ying-Qing Xu, Julie Dorsey, Heung-Yeung Shum
2008 ACM Transactions on Graphics  
In this paper, we introduce "sketching reality," the process of converting a free-hand sketch to a realistic-looking model. We apply this concept to architectural designs.  ...  The final product is a realistic texture-mapped 2.5D model of the building. We show a variety of buildings that have been created using this system.  ...  ACKNOWLEDGMENTS We would like to thank the reviewers for their valuable feedback and Crystal Digital Technology Co., Ltd. for providing the 3D models of detailed geometries used in our database.  ... 
doi:10.1145/1356682.1356684 fatcat:yp77scpxgjakjple4y7vgjrmrm

Applying Scenarios in User-Centred Design to Develop a Sketching Interface for Human Modelling and Animation [article]

Chen Mao, Seng Feng Qin, David K. Wright, Jun Peng
2006 Sketch-Based Interfaces and Modeling  
Benefiting from applying the UCSD strategy and scenario-based design to develop a natural and supportive sketching interface, our investigation can be a useful instantiation for the design of other sketching  ...  This paper presents our user and usability studies for applying scenarios in user-centred design to develop a sketching interface for virtual human modelling and animation.  ...  , 2) 3D pose reconstruction from 2D stick figures, 3) Free-form skin modelling from figure contour sketching.  ... 
doi:10.2312/sbm/sbm06/147-156 fatcat:csjljpkb55hb7hbn3pedgw6ugi

What Do Strokes Teach Us about Collaborative Design? [chapter]

Catherine Elsen, Françoise Darses, Pierre Leclercq
2012 Lecture Notes in Computer Science  
During the preliminary phases of design, the intentions of a designer are mainly supported by its sketches and more particularly by specific graphic units inside those sketches.  ...  graphical key-features constitute the crucial essence of the shared information; • how and when is this graphic essence ready to be shared with collaborators.  ...  The iterative crystallization process itself is part of the design process, and the materialization of those curves is a crucial step to insure the global coherence of the project and mutual understanding  ... 
doi:10.1007/978-3-642-32609-7_16 fatcat:l4eea3nszvbn7m3siodp2xkg2i

A shape design system using volumetric implicit PDEs

Haixia Du, Hong Qin
2005 ACM SIGGRAPH 2005 Courses on - SIGGRAPH '05  
In particular, the unified approach can reconstruct the PDE geometry of arbitrary topology from scattered data points or a set of sketch curves.  ...  and iso-surface sculpting, deformation of arbitrary interior regions, as well as a set of CSG operations inside the working space.  ...  Since its initial application on surface blending, the PDE approach has broadened its applications for free-form surface design, solid modeling, and interactive surface editing [6, 7, 42] during the  ... 
doi:10.1145/1198555.1198647 dblp:conf/siggraph/DuQ05 fatcat:2tler2xeq5asxcai6wi7pzykfq

Sketching space

Alasdair Turner, David Chapman, Alan Penn
2000 Computers & graphics  
The result of using the system in this manner is the 'sketching of space' -sketching out a volume around the userand once the geometry has been recovered, the designer is free to quickly sketch design  ...  Therefore, we suggest that the system may be of use in 'just-intime' CAD recovery of complex environments, such as shop floors, or construction sites, by recovering objects through sketched overlays, where  ...  Acknowledgements This research was conducted at the Virtual Reality Centre for the Built Environment at UCL, funded by an Office of Science and Technology Foresight 17 Challenge Award.  ... 
doi:10.1016/s0097-8493(00)00089-3 fatcat:wbc3paqozfe6xfrwfpfjcyw3fu

A shape design system using volumetric implicit PDEs

Haixia Du, Hong Qin
2004 Computer-Aided Design  
In particular, the unified approach can reconstruct the PDE geometry of arbitrary topology from scattered data points or a set of sketch curves.  ...  and iso-surface sculpting, deformation of arbitrary interior regions, as well as a set of CSG operations inside the working space.  ...  Since its initial application on surface blending, the PDE approach has broadened its applications for free-form surface design, solid modeling, and interactive surface editing [6, 7, 42] during the  ... 
doi:10.1016/j.cad.2004.01.009 fatcat:oxr2sie7ezcctoflengofporiq

Interactive shape design using volumetric implicit PDEs

Haixia Du
2003 Proceedings of the eighth ACM symposium on Solid modeling and applications - SM '03  
In particular, the unified approach can reconstruct the PDE geometry of arbitrary topology from scattered data points or a set of sketch curves.  ...  , iso-surface sculpting, deformation of arbitrary interior regions, as well as a set of CSG operations inside the working space.  ...  ., second, mixed, and fourth order of PDEs as surface representation techniques and demonstrated the use and effectiveness of the PDE method for free-form surface design.  ... 
doi:10.1145/781640.781642 fatcat:j26phfaeizhbrddwpum6lu7sri
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