300 Hits in 3.6 sec

Efficient texture synthesis using strict Wang Tiles

Xinyu Zhang, Young J. Kim
2008 Graphical Models  
Because they are precomputed, Wang Tiles are a very efficient way to generate textures on the fly. But matching problems occur within tiles and at the corners of adjacent tiles.  ...  Wang Tiles are constructed from four texture samples, arranged so they can always match a choice of other tiles at two edges.  ...  Fig. 4 . 4 The strict Wang Tile.  ... 
doi:10.1016/j.gmod.2007.10.002 fatcat:k5xumhwttzhuvcvgo5lsbsqu5u

Interactive texture design and synthesis from mesh sketches

Lili Wang, Qinglin Qi, Yi Chen, Wei Ke, Aimin Hao
2014 Frontiers of Computer Science  
We present a new two-step texture design and synthesis method that addresses these two problems.  ...  Geometry mesh introduces user control into texture synthesis and editing, and brings more variations in the synthesized results. But still two problems related remain in need of better solutions.  ...  Compare to Barla's method, our texture mesh synthesis is more efficient due to patch tiling (Ours only takes 3ms).  ... 
doi:10.1007/s11704-014-3285-5 fatcat:ncgfjrz26rhoflollbi6hci33e

Volume illustration using wang cubes

Aidong Lu, David S. Ebert, Wei Qiao, Martin Kraus, Benjamin Mora
2007 ACM Transactions on Graphics  
In addition to Wang Tiles, other methods are used to generate patterns or textures for image synthesis and object rendering. Hiller et al.  ...  Recently, Sibley et al. [28] performed video synthesis or geometry placement by using Wang Cubes. feature enhancements.  ... 
doi:10.1145/1243980.1243985 fatcat:pokbnchcnnb4viwm3stvth7bs4

State of the Art in Example-based Texture Synthesis [article]

Li-Yi Wie, Sylvain Lefebvre, Vivek Kwatra, Greg Turk
2009 Eurographics State of the Art Reports  
We cover fundamental algorithms as well as extensions and applications of texture synthesis.  ...  Recent years have witnessed significant progress in example-based texture synthesis algorithms. Given an example texture, these methods produce a larger texture that is tailored to the user's needs.  ...  Examples of such aperiodic tile sets are the Penrose tiles, the 16 Ammann [GS86] tiles and the 13 Wang tiles [II96] .  ... 
doi:10.2312/egst.20091063 fatcat:emzvfoytwzaxbctgw3nrzfvaty

Compressing random microstructures via stochastic Wang tilings

Jan Novák, Anna Kučerová, Jan Zeman
2012 Physical Review E  
This paper presents a stochastic Wang tiling based technique to compress or reconstruct disordered microstructures on the basis of given spatial statistics.  ...  orders in a computationally efficient manner.  ...  concept by making use of multiple tiles instead of a single cell, preserves long range spatial features, and is computationally efficient.  ... 
doi:10.1103/physreve.86.040104 pmid:23214516 fatcat:y23gnlt4x5f53honljh4emim3u

Texton Noise

B. Galerne, A. Leclaire, L. Moisan
2017 Computer graphics forum (Print)  
The aim of this paper is to propose the simplest and most efficient noise model that allows for the reproduction of any Gaussian texture.  ...  In addition, we demonstrate that texton noise can be applied on any surface using parameterization-free surface noise and that it allows for noise mixing.  ...  Texture Tiling and Texture Bombing Let us recall that many procedural methods consist in assembling texture pieces on the synthesis domain.  ... 
doi:10.1111/cgf.13073 fatcat:re67chfvbjbxzggtsgqjgok4wu

Structure grid for directional stippling

Minjung Son, Yunjin Lee, Henry Kang, Seungyong Lee
2011 Graphical Models  
We represent a structure grid as a 2D texture and develop an efficient construction algorithm that outperforms conventional Lloyd's method in terms of the rigor of dot alignment.  ...  Acknowledgments We thank Thomas Hawk ( for permission to use the picture in  ...  [8] developed a recursive Wang-tiling method to enable real-time, dynamic control of blue noise dot distributions. Ostromoukhov et al.  ... 
doi:10.1016/j.gmod.2010.12.001 fatcat:ih54wtosvneo3kn6katinacngy

The video mesh: A data structure for image-based three-dimensional video editing

Jiawen Chen, Sylvain Paris, Jue Wang, Wojciech Matusik, Michael Cohen, Fredo Durand
2011 2011 IEEE International Conference on Computational Photography (ICCP)  
The video mesh is at its core a set of texture mapped triangles, we leverage graphics hardware to enable interactive editing and rendering of a variety of effects.  ...  The video mesh sparsely encodes optical flow as well as depth, and handles occlusion using local layering and alpha mattes. Motion is described by a sparse set of points tracked over time.  ...  Tiled texture We describe a tile-based storage scheme which trades off memory for rendering efficiency-in particular, it does not require any mesh reparameterization.  ... 
doi:10.1109/iccphot.2011.5753118 dblp:conf/iccp/ChenPWMCD11 fatcat:najxm5sysres5d4dl7dz4y3hey

Generating enhanced natural environments and terrain for interactive combat simulations (GENETICS)

William D. Wells
2005 Proceedings of the ACM symposium on Virtual reality software and technology - VRST '05  
The main advantage of using Wang Tiles is that once the tiles are filled, large expanses of an aperiodic texture (or distributions of geometry) can be created as needed very efficiently at runtime.  ...  Figure 2 - 2 13 Wang Tiles: construction, minimum non-periodic tile set and Wang tiling texture generation(From Cohen et al.)  ... 
doi:10.1145/1101616.1101655 dblp:conf/vrst/Wells05 fatcat:7zz2nynrpfchjba27dr7yfmbvu

Image Analysis: Focus on Texture Similarity

Thrasyvoulos N. Pappas, David L. Neuhoff, Huib de Ridder, Jana Zujovic
2013 Proceedings of the IEEE  
We examine the relation of STSIMs to existing models of texture perception, texture analysis/synthesis, and texture segmentation.  ...  Our focus is on natural textures and structural texture similarity metrics (STSIMs).  ...  ., for retrieving textures from a database (of carpets, fabrics, marble tiles, etc.).  ... 
doi:10.1109/jproc.2013.2262912 fatcat:od4j2xzckvc53fouq3eraji22y

Fabricable tile decors

Weikai Chen, Yuexin Ma, Sylvain Lefebvre, Shiqing Xin, Jonàs Martínez, wenping wang
2017 ACM Transactions on Graphics  
Several user controls are available, to distribute different type of tiles over the surface and locally change their scales and orientations.  ...  Dumas et al. [2015] modify texture synthesis to account for structure and rigidity, and synthesize printable 3D patterns that cover a base surface.  ...  SLS), the part occupies a large volume while using little material. It is thus not very efficient to print, as only few objects can be made in a single batch.  ... 
doi:10.1145/3130800.3130817 fatcat:j2wle3aibjdxpgivb42aekvmnm

A comprehensive review on the applications of coal fly ash

Z.T. Yao, X.S. Ji, P.K. Sarker, J.H. Tang, L.Q. Ge, M.S. Xia, Y.Q. Xi
2015 Earth-Science Reviews  
in the soil amelioration, construction industry, ceramic industry, catalysis, depth separation, zeolite synthesis, etc.  ...  The present review first describes the generation, physicochemical properties and hazards of coal fly ash at the global level, and then focuses on its current and potential applications, including use  ...  Wang et al. (2008) prepared pure-form zeolite A using the two-step process. This is, in addition, a most unusual method of zeolite synthesis, using no water.  ... 
doi:10.1016/j.earscirev.2014.11.016 fatcat:4wuo3h7qavbgzp6wbngqrj62km

Classification and Disease Localization in Histopathology Using Only Global Labels: A Weakly-Supervised Approach [article]

Pierre Courtiol, Eric W. Tramel, Marc Sanselme, Gilles Wainrib
2020 arXiv   pre-print
We accomplish this through the use of pre-trained deep convolutional networks, feature embedding, as well as learning via top instances and negative evidence, a multiple instance learning technique from  ...  scheme for efficient training over massive WSI, and enforcing a strict set of regualrizations, we are able to demonstrate performance equivalent to the best human pathologists .  ...  Historical methods have focused on the use of hand-crafted texture or morphological (Demir & Yener, 2005) features used in conjunction with unsupervised techniques such as K-means clustering or other  ... 
arXiv:1802.02212v2 fatcat:rf6wwdx67bcfdjxcmrfafbhs3u

Recent Advances on HEVC Inter-frame Coding: From Optimization to Implementation and Beyond

Yongfei Zhang, Chao Zhang, Rui Fan, Siwei Ma, Zhibo Chen, C.-C. Jay Kuo
2019 IEEE transactions on circuits and systems for video technology (Print)  
The significant coding efficiency improvement is attributed to many new techniques.  ...  High Efficiency Video Coding (HEVC) has doubled the video compression ratio with equivalent subjective quality as compared to its predecessor H.264/AVC.  ...  However, both slice and tile would inevitably lead to coding efficiency degradation due to the dependency destruction among CTUs on slice/tile boundaries.  ... 
doi:10.1109/tcsvt.2019.2954474 fatcat:fuqoa764urfs7kacej6m7bxcdm

Geometric Texturing Using Level Sets

A. Brodersen, K. Museth, S. Porumbescu, B. Budge
2008 IEEE Transactions on Visualization and Computer Graphics  
Carving patterns into an irregular surface by subtracting a geometric texture using the proposed technique.  ...  To facilitate our mapping, we parameterize the embedding space of the base level set surface using fast particle advection.  ...  Wang et al. presented a generalization of displacement maps.  ... 
doi:10.1109/tvcg.2007.70408 pmid:18192709 fatcat:on44ohxbtnbjldaeh7g7ke26yq
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