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A Sketch-Based Modeling Framework Based on Adaptive Meshes

Emilio Vital Brazil, Ronan Amorim, Mario Costa Sousa, Luiz Velho, Luiz Henrique de Figueiredo
2014 2014 27th SIBGRAPI Conference on Graphics, Patterns and Images  
In this paper we take a more theoretical approach to the problem of sketch-based surface modeling (SBSM) and introduce a framework for SBSM systems based on adaptive meshes.  ...  Modeling a race car. Left to right: implicit model (HRBF), adaptive mesh, and final model augmented. Abstract-In the last 15 years many systems for sketch-based modeling have been developed.  ...  CONCLUSION AND FUTURE WORK We proposed a framework to sketch-based surface modeling based on adaptive mesh.  ... 
doi:10.1109/sibgrapi.2014.16 dblp:conf/sibgrapi/BrazilASVF14 fatcat:6kinri4dnngypc3jex6ki7twbe

Sketch-Based Adaptive Mesh Augmentation Using Stellar Operators

Afonso Paiva, Ronan Amorim, Luiz Velho, Mario Costa Sousa
2011 2011 24th SIBGRAPI Conference on Graphics, Patterns and Images  
Overview of our modeling framework: The sketching stage allows the graphic designer to place feature curves (red stroke) on the surface of the mesh (left); The adaptive mesh refinement stage increases  ...  It combines in a original way an adaptive multiresolution mesh structure with a simple, intuitive sketch-based interface.  ...  Gingold and Zorin [8] present a sketch-based modeling technique based on editing shaded images of 3D models.  ... 
doi:10.1109/sibgrapi.2011.31 dblp:conf/sibgrapi/PaivaAVS11 fatcat:24dqscrbu5ec7cwtwzgjjkc4pe

Sketch-based modeling and adaptive meshes

Emilio Vital Brazil, Ronan Amorim, Mario Costa Sousa, Luiz Velho, Luiz Henrique de Figueiredo
2015 Computers & graphics  
We also take a more theoretical approach to the problem of sketch-based surface modeling (SBSM) and introduce a framework for SBSM systems based on adaptive meshes.  ...  We present two sketch-based modeling systems built using adaptive meshes and editing operators.  ...  Fig-43 ure 1 shows an instance of a model built within our framework: 44 a 4-8 adaptive mesh adapted to an implicit surface.  ... 
doi:10.1016/j.cag.2015.07.020 fatcat:57ctcjcg7vfaliyfnxyqoqmcdy

3D car shape reconstruction from a contour sketch using GAN and lazy learning

Naoki Nozawa, Hubert P. H. Shum, Qi Feng, Edmond S. L. Ho, Shigeo Morishima
2021 The Visual Computer  
To tackle the challenge, we propose a novel system to reconstruct a 3D car using a single sketch image.  ...  The system learns from a synthetic database of 3D car models and their corresponding 2D contour sketches and segmentation masks, allowing effective training with minimal data collection cost.  ...  [36] adapt a CNN to generate building models by adding surface curve information as a style of sketching.  ... 
doi:10.1007/s00371-020-02024-y fatcat:q62huylxcjej7js2i7fqcme7kq

Web3D lightweight learning framework for Shape retrieval based on CNN

Wen Zhou, Jinyuan Jia, Peihua Song
2017 Indian Journal of Science and Technology  
With the rapid development of Web3D technologies, it is more and more import and necessary that sketch-based model retrieval. Besides, 3D model displaying over web browser becomes important.  ...  Besides, a CNN-based learning method is conducted to obtain the best view of shape. Furthermore, learning framework is presented to conduct the final retrieval.  ...  In order to enhance the robust against noise in sketch images Chatbri et al.Error! Reference source not found. introduced an adaptation framework based on scale space filtering.  ... 
doi:10.17485/ijst/2017/v10i45/120634 fatcat:4t2e5wvjorhuzfyojsptky6voe

DASS: Detail Aware Sketch-Based Surface Modeling [article]

Emilio Vital Brazil
2014 arXiv   pre-print
We present a sketch-based modeling system suitable for detail editing, based on a multilevel representation for surfaces.  ...  We used an adaptive mesh (4-8 mesh) and developed a label theory to construct a manifold structure, which is responsible for controlling local editing of the model.  ...  Our workflows are based on the framework presented by [8] to adapt dynamic meshes.  ... 
arXiv:1406.7025v1 fatcat:nwz3cwkvv5cdfblb4jk5phcb3u

Adaptive skeleton-driven cages for mesh sequences

Xue Chen, Jieqing Feng
2014 Computer Animation and Virtual Worlds  
The initial skeleton is inferred by sketching on the rest pose mesh. The corresponding cage is constructed by using an adaptive cross-section-based method.  ...  The design of a compact and effective representation is a critical step in fully utilizing the abundant raw mesh-based animation resources.  ...  The one-to-one correspondences between the source cage and target cage will be automatically built once the same skeleton structure is sketched on the source model and target model.  ... 
doi:10.1002/cav.1577 fatcat:garwmr5ijratzhlmm3v4uuvksq

Sketch Modeling of Seismic Horizons from Uncertainty [article]

Ronan Amorim, Emilio Vital Brazil, Daniel Patel, Mario Costa Sousa
2012 Sketch-Based Interfaces and Modeling  
A novel architecture using adaptive meshes is also developed to create a more flexible sketch-based system.  ...  We propose a novel set of sketch-based modeling operators designed by specific domain requirements from geophysics and geology.  ...  This base mesh will be our first approximation, after that, it will be adapted to the desired shape.  ... 
doi:10.2312/sbm/sbm12/001-010 fatcat:2jaolyoe7rgxteimrwauknkhji

Modeling the forward problem based on the adaptive FEMs framework in bioluminescence tomography

Yujie Lv, Jie Tian, Hui Li, Jie Luo, Wenxiang Cong, Ge Wang, Durairaj Kumar, Ulrich Bonse
2006 Developments in X-Ray Tomography V  
In this paper, we introduce the adaptive FEMs framework based on the diffusion equation to enhance the solution accuracy of the forward problem, and the bioluminescence imaging experiment has been performed  ...  Finally, The effectiveness of the adaptive FEMs framework is demonstrated with the comparison between the experimental results and the simulation solution.  ...  RESULTS The above-mentioned adaptive FEMs framework utilize the microCT slices based mesh of the phantom to model the photon propagation.  ... 
doi:10.1117/12.678273 fatcat:tvldgge5dzaitd2m6m2jeqsbba

Interactive out-of-core texturing

Tamy Boubekeur, Christophe Schlick
2006 ACM SIGGRAPH 2006 Sketches on - SIGGRAPH '06  
a) (b) (c) (d) Figure 1: (a) General framework for interactive out-of-core texturing. (b) Initial untextured out-of-core mesh (8M polygons).  ...  (d) Point-sampled texture applied on the initial full-size mesh.  ...  This framework is easy to implement and provides a size-insensitive multiresolution texturing tool for huge objects entirely based on streaming processes (see Figure 1 (d) and 2).  ... 
doi:10.1145/1179849.1179934 dblp:conf/siggraph/BoubekeurS06 fatcat:7wqrlxax25eoziedp3cpcuqz2a

A sketch-based interface for detail-preserving mesh editing

Andrew Nealen, Olga Sorkine, Marc Alexa, Daniel Cohen-Or
2007 ACM SIGGRAPH 2007 courses on - SIGGRAPH '07  
In this paper we present a method for the intuitive editing of surface meshes by means of view-dependent sketching.  ...  Subsequently, an edit is carried out by sketching a new, view-dependent handle position or by indirectly influencing differential properties along the sketch.  ...  This mesh modeling framework together with a user-interface mostly based on sketching suggested feature lines onto or around a shape, indeed, yields an intuitive shape modeling technique.  ... 
doi:10.1145/1281500.1281553 dblp:conf/siggraph/NealenSAC07 fatcat:vvzl3233erb5dclbahktffvpxy

A sketch-based interface for detail-preserving mesh editing

Andrew Nealen, Olga Sorkine, Marc Alexa, Daniel Cohen-Or
2005 ACM SIGGRAPH 2005 Papers on - SIGGRAPH '05  
In this paper we present a method for the intuitive editing of surface meshes by means of view-dependent sketching.  ...  Subsequently, an edit is carried out by sketching a new, view-dependent handle position or by indirectly influencing differential properties along the sketch.  ...  This mesh modeling framework together with a user-interface mostly based on sketching suggested feature lines onto or around a shape, indeed, yields an intuitive shape modeling technique.  ... 
doi:10.1145/1186822.1073324 fatcat:duijykjfqzazrfzyetvtwig2dq

A sketch-based interface for detail-preserving mesh editing

Andrew Nealen, Olga Sorkine, Marc Alexa, Daniel Cohen-Or
2005 ACM Transactions on Graphics  
In this paper we present a method for the intuitive editing of surface meshes by means of view-dependent sketching.  ...  Subsequently, an edit is carried out by sketching a new, view-dependent handle position or by indirectly influencing differential properties along the sketch.  ...  This mesh modeling framework together with a user-interface mostly based on sketching suggested feature lines onto or around a shape, indeed, yields an intuitive shape modeling technique.  ... 
doi:10.1145/1073204.1073324 fatcat:klfuhgiltrcmbjxvk2wjnodxbi

Interactive 3D modeling using only one image

Sujin Liu, Zhiyong Huang
2000 Proceedings of the ACM symposium on Virtual reality software and technology - VRST '00  
In this paper, we present an image-based interactive 3D modeling framework consisting of three major modules: photogrammetric modeling, human interaction, and texture mapping.  ...  On one side, unlike the common fully interactive modeling framework, the users are not required to specify some low level details interactively which can be derived automatically from the image.  ...  The most popular forward methods are based on CSG/Brep framework, i.e., the framework of constructive solid geometry (CSG) and boundary representation (B-rep) [10] .  ... 
doi:10.1145/502398.502400 fatcat:utua6x3quvdn3dwotqckieojre

Interactive 3D modeling using only one image

Sujin Liu, Zhiyong Huang
2000 Proceedings of the ACM symposium on Virtual reality software and technology - VRST '00  
In this paper, we present an image-based interactive 3D modeling framework consisting of three major modules: photogrammetric modeling, human interaction, and texture mapping.  ...  On one side, unlike the common fully interactive modeling framework, the users are not required to specify some low level details interactively which can be derived automatically from the image.  ...  The most popular forward methods are based on CSG/Brep framework, i.e., the framework of constructive solid geometry (CSG) and boundary representation (B-rep) [10] .  ... 
doi:10.1145/502390.502400 dblp:conf/vrst/LiuH00 fatcat:ckajh27jwff2thlpqff65baihy
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