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Symmetry-Aware Mesh Segmentation into Uniform Overlapping Patches

A. Dessein, W. A. P. Smith, R. C. Wilson, E. R. Hancock
2016 Computer graphics forum (Print)  
We present intrinsic methods to address the fundamental problem of segmenting a mesh into a specified number of patches with a uniform size and a controllable overlap.  ...  We introduce quantitative measures of patch size uniformity and symmetry, and show that our segmentation outperforms state-of-the-art alternatives in experiments on a well-known dataset.  ...  Simari for providing us with symmetric mesh data, to H. Elgabou for his help to process some models, and to G. Peyré for his assistance with the fast marching code.  ... 
doi:10.1111/cgf.12997 fatcat:v7zxttzvvvekhnoplecykh6mhu

3D B-Rep meshing for real-time data-based geometric parametric analysis

Tristan Maquart, Thomas Elguedj, Anthony Gravouil, Michel Rochette
2021 Advanced Modeling and Simulation in Engineering Sciences  
each point on a mesh has an analogous one into all other meshes.  ...  The triangulated mesh is decomposed into a set of cuboids in two steps: pants decomposition and cuboid decomposition.  ...  We especially thank Martijn Hoeijmakers for his help in providing the scanned meshes of the ventricle model coming from anonymous data.  ... 
doi:10.1186/s40323-021-00194-5 fatcat:paow6nja7bfyxeqhwj2kxbt5my

Partial intrinsic reflectional symmetry of 3D shapes

Kai Xu, Hao Zhang, Andrea Tagliasacchi, Ligang Liu, Guo Li, Min Meng, Yueshan Xiong
2009 ACM Transactions on Graphics  
Incorporating symmetry cues offered by IRSAs into a conventional mesh segmentation scheme leads to highly semantic results (d).  ...  We show how the extracted IRSA curves can be incorporated into a conventional mesh segmentation scheme so that the implied symmetry cues can be utilized to obtain more meaningful results.  ...  The mesh segmentation code was provided by Rong Liu and the SDF code was originally developed by Lior Shapira.  ... 
doi:10.1145/1618452.1618484 fatcat:3kmuvtuhfzehhiu5dtdbi6jxxe

Partial intrinsic reflectional symmetry of 3D shapes

Kai Xu, Hao Zhang, Andrea Tagliasacchi, Ligang Liu, Guo Li, Min Meng, Yueshan Xiong
2009 ACM SIGGRAPH Asia 2009 papers on - SIGGRAPH Asia '09  
Incorporating symmetry cues offered by IRSAs into a conventional mesh segmentation scheme leads to highly semantic results (d).  ...  We show how the extracted IRSA curves can be incorporated into a conventional mesh segmentation scheme so that the implied symmetry cues can be utilized to obtain more meaningful results.  ...  The mesh segmentation code was provided by Rong Liu and the SDF code was originally developed by Lior Shapira.  ... 
doi:10.1145/1661412.1618484 fatcat:feicgcuurzez7o4nrjsgszcs5y

Region-adaptive texture-aware image resizing

Jiangyang Zhang, C.-C. Jay Kuo
2012 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
In this paper, we analyze the effect of texture regularity on the performance of image resizing (or called image retargeting), and then propose an efficient texture-aware resizing algorithm.  ...  Guided by region and contour information, we propose a mesh-based resizing technique, which is formulated as a nonlinear least squares optimization problem and solved by an iterative Gauss-Newton method  ...  We used quad size of 20 × 20 pixels for mesh warping, and patch size p×p = 90×90, overlap width wp = 15 in texture re-synthesis.  ... 
doi:10.1109/icassp.2012.6288014 dblp:conf/icassp/ZhangK12 fatcat:75wokc3mvvaenif25slspzyz4a

A Divide-and-Conquer Approach to Quad Remeshing

Muyang Zhang, Jin Huang, Xinguo Liu, Hujun Bao
2013 IEEE Transactions on Visualization and Computer Graphics  
Given a model represented in triangular mesh, we first segment it into a set of submeshes, and compare them with some predefined quad mesh templates.  ...  Many natural and man-made objects consist of simple primitives, similar components, and various symmetry structures.  ...  Fig. 13 . 13 Quadrangulation with symmetry preservation. (a) The results and the original model overlapped with the symmetry planes and segmentation shown in the top-right corner.  ... 
doi:10.1109/tvcg.2012.301 pmid:23559508 fatcat:mnuubtdkzrgmddbtfexq53lbnq

Symmetry in 3D Geometry: Extraction and Applications [article]

Niloy J. Mitra, Mark Pauly, Michael Wand, Duygu Ceylan
2012 Eurographics State of the Art Reports  
This report surveys and classifies recent developments in symmetry detection.  ...  The concept of symmetry has received significant attention in computer graphics and computer vision research in recent years.  ...  (Right) Segmentation in the symmetry-factored embedding space produces symmetry-aware segmentation. (Images courtesy of Lipman et al. [LCDF10].)  ... 
doi:10.2312/conf/eg2012/stars/029-051 fatcat:mw7cbmy5mrhhfhv2qrynrcmegq

Symmetry in 3D Geometry: Extraction and Applications

Niloy J. Mitra, Mark Pauly, Michael Wand, Duygu Ceylan
2013 Computer graphics forum (Print)  
This report surveys and classifies recent developments in symmetry detection.  ...  The concept of symmetry has received significant attention in computer graphics and computer vision research in recent years.  ...  (Right) Segmentation in the symmetry-factored embedding space produces symmetry-aware segmentation. (Images courtesy of Lipman et al. [LCDF10] .) Figure 14 : 14 .  ... 
doi:10.1111/cgf.12010 fatcat:mbgf3fe7qjajlkkoiiucqfkoaa

Detail-replicating shape stretching

Ibraheem Alhashim, Hao Zhang, Ligang Liu
2011 The Visual Computer  
First, they detect regions with translational symmetry and segment the image into symmetric and non-symmetric regions.  ...  Our texture synthesis method simply replicate overlapping patches of the entire input texture.  ...  Model Base ( Appendix A Mesh Smoothing The general idea behind mesh smoothing is to reduce noise in a mesh through a diffusion process.  ... 
doi:10.1007/s00371-011-0665-9 fatcat:6bjint634zgwlg3uetvnqo6sxq

Component-aware Semantic Modeling of Architectures from a Single Image [article]

Fei Hou, Qinping Zhao, Yue Qi, Hong Qin
2013 Pacific Conference on Computer Graphics and Applications  
The core of our system is a novel algorithm to adaptively segment repeated curved stripes (e.g., roof tiles, building floors) into individual elements, based on which 3D dimensions as well as architectural  ...  This paper advocates a new component-aware framework to reconstruct 3D architecture from a single image.  ...  ,C m } based on the symmetry and uniformity. {C 0 , . . .  ... 
doi:10.2312/pe.pg.pg2013short.053-058 dblp:conf/pg/HouZQQ13 fatcat:zbkllgtgy5aongn2gsvkqsskge

SDM-NET: Deep Generative Network for Structured Deformable Mesh [article]

Lin Gao, Jie Yang, Tong Wu, Yu-Jie Yuan, Hongbo Fu, Yu-Kun Lai, Hao Zhang
2019 arXiv   pre-print
We introduce SDM-NET, a deep generative neural network which produces structured deformable meshes.  ...  Our key observation is that while the overall structure of a 3D shape can be complex, the shape can usually be decomposed into a set of parts, each homeomorphic to a box, and the finer-scale geometry of  ...  Man-made shapes are highly structured, which motivates structure-aware shape processing .  ... 
arXiv:1908.04520v2 fatcat:3dmtrxswqrdkngles35y434jdu

Width-bounded geodesic strips for surface tiling

Joe Kahlert, Matt Olson, Hao Zhang
2010 The Visual Computer  
We present an algorithm for computing families of geodesic curves over an open mesh patch to partition the patch into strip-like segments.  ...  , where n is the mesh size.  ...  Conventional mesh parameterization schemes would flatten the input surface into a planar circular patch while distributing distortion uniformly across.  ... 
doi:10.1007/s00371-010-0513-3 fatcat:ia6acbcqmzgkdfm4yjhy6vnsnm

High-Fidelity Point Cloud Completion with Low-Resolution Recovery and Noise-Aware Upsampling [article]

Ren-Wu Li, Bo Wang, Chun-Peng Li, Ling-Xiao Zhang, Lin Gao
2021 arXiv   pre-print
Instead of decoding a whole shape, we propose to decode and refine a low-resolution (low-res) point cloud first, and then performs a patch-wise noise-aware upsampling rather than interpolating the whole  ...  Therefore, we propose a patch extraction approach to generate training patch pairs between the sparse and ground-truth point clouds, and an outlier removal step to suppress the noisy points from the sparse  ...  Subsequently, S̃ is split into overlapped patches A in a ball query fashion.  ... 
arXiv:2112.11271v2 fatcat:rewnufojqraulkevufwz56nr7a

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  ...  We start by rendering all segments into an offline buffer to create an image I showing a slice through the input mesh.  ...  The incorporation of user assistance into the task of mesh segmentation greatly supports the detection of salient features.  ... 
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  ...  We start by rendering all segments into an offline buffer to create an image I showing a slice through the input mesh.  ...  The incorporation of user assistance into the task of mesh segmentation greatly supports the detection of salient features.  ... 
doi:10.1016/j.cad.2010.10.007 fatcat:yfpdmgcm4bhcvp4rpip4h3c36i
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