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texture synthesis via the matching compatibility between patches

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Science in China(Series F) 2009年第3期52卷 512-522页

作者： WANG WenCheng LIU FeiTong HUANG PeiJie WU EnHua State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China Department of Computer and Information Science University of Macao Macao Graduate University of the Chinese Academy of Sciences Beijing 100190 China

A new patch-based texture synthesis method is presented in this paper. By the method, a set of patches that can be matched with a sampled patch for growing textures effectively, called the matching compatibility between patches, is generated first for each patch, and the set is further optimized by culling the patches that may cause synthesis conflicts. In this way, similarity measurement calculation for selecting suitable patches in texture synthesis can be greatly saved, and synthesis conflicts between neighbouring patches are substantially reduced. Furthermore, retrace computation is integrated in the synthesis process to improve the texture quality. As a result, the new method can produce high quality textures as texture optimization, the best method to date for producing good textures, and run in a time complexity linear to the size of the output texture. Experimental results show that the new method can interactively generate a large texture in 1024 × 1024 pixels, which is very difficult to achieve by existing methods.

关键词： texture synthesis match texture patch large textures

Image completion algorithm based on texture synthesis

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Journal of Systems Engineering and Electronics 2007年第2期18卷 385-391页

作者： Zhang Hongying Peng Qicong Wu Yadong School of Communication and Information Engineering Univ. of Electronic Science and Technology of China Chengdu 610054 P.R.China School of Computer Science and Engineering Univ. of Electronic Science and Technology of Chinas Chengdu 610054 P.R.China

A new algorithm is proposed for completing the missing parts caused by the removal of foreground or background elements from an image of natural scenery in a visually plausible way. The major contributions of the proposed algorithm are：（1） for most natural images, there is a strong orientation of texture or color distribution. So a method is introduced to compute the main direction of the texture and complete the image by limiting the search to one direction to carry out image completion quite fast; （2） there exists a synthesis ordering for image completion. The searching order of the patches is defined to ensure the regions with more known information and the structures should be completed before filling in other regions; （3） to improve the visual effect of texture synthesis, an adaptive scheme is presented to determine the size of the template window for capturing the features of various scales. A number of examples are given to demonstrate the effectiveness of the proposed algorithm.

关键词： Mage completions Image inpainting texture synthesis Object removal.

Interactive texture design and synthesis from mesh sketches

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Frontiers of Computer Science 2014年第2期8卷 330-341页

作者： Lili WANG Qinglin QI Yi CHEN Wei KE Aimin HAO State Key Laboratory of Virtual Reality Technology and Systems School of Computer Science and Engineering Beihang University Beijing 100191 China Macao Polytechnic Institute Macao China

Geometry mesh introduces user control into tex- ture synthesis and editing, and brings more variations in the synthesized results. But still two problems related remain in need of better solutions. One problem is generating the meshes with desired size and pattern efficiently from easier user inputs. The other problem is improving the quality of synthesized results with mesh information. We present a new two-step texture design and synthesis method that addresses these two problems. Besides example texture, a small piece of mesh sketch drawn by hand or detected from example texture is input to our algorithm. And then a mesh synthesis method of geometry space is provided to avoid optimizations cell by cell. Distance and orientation features are introduced to im- prove the quality of mesh rasterization. Results show that with our method, users can design and synthesize textures from mesh sketches easily and interactively.

关键词： texture synthesis texture design feature-basedmethod structural texture

Transition texture synthesis

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Journal of Computer Science & Technology 2008年第2期23卷 280-289页

作者：赖岳益戴文凯 Department of Computer Science and Information Engineering "National Dong Hwa University"Hualien 97401 TaiwanChina

synthesis of transition textures is essential for displaying visually acceptable appearances on a terrain. This investigation presents a modified method for synthesizing the transition texture to be tiled on a terrain. All transition pattern types are recognized for a number of input textures. The proposed modified patch-based sampling texture synthesis approach, using the extra feature map of the input source and target textures for patch matching, can synthesize any transition texture on a succession pattern by initializing the output texture using a portion of the source texture enclosed in a transition cut. The transition boundary is further enhanced to improve the visual effect by tracing out the integral texture elements. Either the Game of Life model or Wang tiles method are exploited to present a good-looking profile of successions on a terrain for tiling transition textures. Experimental results indicate that the proposed method requires few input textures, yet synthesizes numerous tileable transition textures, which are useful for obtaining a vivid appearance of a terrain.

关键词： texture synthesis texture transition texture mapping

Method　of　Direct　texture　synthesis　on　Arbitrary　Surfaces

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Journal of Computer Science & Technology 2004年第5期19卷 643-649页

作者： Fu-LiWu Chun-HuiMei Jiao-YingShi StateKeyLabofCAD＆CG ZhejiangUniversityHangzhou310027P.R.China

A direct texture synthesis method on arbitrary surfaces is proposed in thispaper. The idea is to recursively map triangles on surface to texture space until the surface iscompletely mapped. First, the surface is simplified and a tangential vector field is created overthe simplified mesh. Then, mapping process searches for the most optimal texture coordinates intexture sample for each triangle, and the textures of neighboring triangles are blended on the mesh.All synthesized texture triangles are compressed to an atlas. Finally, the simplified mesh issubdivided to approach the initial surface. The algorithm has several advantages over formermethods: it synthesizes texture on surface without local parameterization; it does not needpartitioning surface to patches; and it does not need a particular texture sample. The resultsdemonstrate that the new algorithm is applicable to a wide variety of texture samples and anytriangulated surfaces.

关键词： texture synthesis texture mapping mesh simplification computer graphics

Steganography Using Reversible texture synthesis Based on Seeded Region Growing and LSB

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Computers, Materials & Continua 2018年第4期55卷 151-163页

作者： Qili Zhou Yongbin Qiu Li Li Jianfeng Lu Wenqiang Yuan Xiaoqing Feng Xiaoyang Mao School of Computer Science and Technology Hangzhou Dianzi UniversityHangzhou310018China School of Information Zhejiang University of Finance&EconomicsHangzhou310000China University of Yamanashi Yamanashi-ken409-3866Japan

Steganography technology has been widely used in data transmission with secret information.However,the existing steganography has the disadvantages of low hidden information capacity,poor visual effect of cover images,and is hard to guarantee security.To solve these problems,steganography using reversible texture synthesis based on seeded region growing and LSB is proposed.Secret information is embedded in the process of synthesizing texture image from the existing natural texture.Firstly,we refine the visual effect.Abnormality of synthetic texture cannot be fully prevented if no approach of controlling visual effect is applied in the process of generating synthetic texture.We use seeded region growing algorithm to ensure texture’s similar local appearance.Secondly,the size and capacity of image can be decreased by introducing the information segmentation,because the capacity of the secret information is proportional to the size of the synthetic texture.Thirdly,enhanced security is also a contribution in this research,because our method does not need to transmit parameters for secret information extraction.LSB is used to embed these parameters in the synthetic texture.

关键词： Steganography texture synthesis LSB seeded region growing algorithm information segmentation

Orientation Field Guided texture synthesis

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Journal of Computer Science & Technology 2013年第5期28卷 827-835页

作者：刘蓓蓓翁彦琳王建南童一颖 Department of Computer Science and Engineering Michigan State University College of Computer Science and Technology Zhejiang University

We present a framework for example-based texture synthesis with feature directions aligned to vector fields with 2-way rotational symmetry, also known as orientation fields. Through a simple variational formulation, the framework allows the user to design the orientation field with intuitive controls, by interactively manipulating singularities and field directions. The resulting field is then used to guide a parallel synthesis. Our contribution is twofold： a design tool for orientation fields with a natural boundary condition, and a parallel texture synthesis adapted specifically for using such fields in feature alignment. We demonstrate the advantages of the procedure through examples on planar and curved patches with trivial topology.

关键词： orientation field natural boundary condition texture synthesis

Constrained circular-patch-based texture synthesis

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Journal of Beijing Institute of Technology 2011年第4期20卷 527-535页

作者：马荣飞 Institute of Digital Information Zhejiang Technical Institute of Economics Institute of Computer Science and Technology Zhejiang University

texture synthesis has been developed for several years.The traditional technique can generate a larger image from a small image while avoid feeling of repetition or uncontinuity.Some constrained synthesis methods which can synthesize image according to special location demand or other demands have been also proposed in recent years.However,in general,these constrained texture synthesis methods are simple and have few controllable factors to meet user＇s diverse needs.To control multiple-sample texture synthesis more flexibly in various aspects such as synthesis location,proportion and semantic objects,we present an interactive texture synthesis approach based on circular patches and constrained by objects according to a certain ratio.With this approach,source exemplars and the target image are firstly divided into several regions with different characters.Users can click the blocks in the source exemplars and the want-to-be-synthesized region in the target image,and then texture in the target image is synthesized with the corresponding regions in the source exemplars.In the process of texture synthesis,circular patch instead of square patch is used to eliminate the aliasing phenomena.Images are synthesized from multiple sample images with ratio constraint and experiments on images show that our approach can get effective results of ratio-constrained multi-sample synthesis.

关键词： texture synthesis multiple sample circular patch ratio constraint

Multi-Layer synthesis of HighlyStructured texture

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Wuhan University Journal of Natural Sciences 2012年第4期17卷 302-308页

作者： TANG Li YU Rongwei GU Yuanting YUAN Jie DU Gong School of Computer Science and Engineering ChangshuInstitute of Technology Changshu 215500 Jiangsu China State Key Laboratary of Software Engineering WuhanUniversity Wuhan 430072 Hubei China Key Laboratory of Aerospace Information Security andTrust Computing Ministry of Education Wuhan 430072 HubeiChina Institute of Software Chinese Academy of Sciences Beijing100080 Beijing China

In this paper, a novel concept of multilayer synthesis and a general framework for texture synthesis method are presented. Within this framework, we first decompose the texture into the supposed pattern layer and material layer in the frequency domain by an E-texton extracting algorithm, then manipulate and extend them respectively according to their own personalities, and finally merge the newly synthesized pattern layer and material layer again to generate the final output. Experiment results show that our method not only greatly improves the synthesis quality for those cases that single-layer synthesis cannot handle well but also provides an ability of achieving various special synthesis effects.

关键词： texture synthesis texture layer multilayer synthesis