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Displaying 1-50 out of 60 total
Popup: automatic paper architectures from 3D models
Found in: ACM Transactions on Graphics (TOG)
By Chao-Hui Shen, Shi-Min Hu, Shi-Sheng Huang, Tao Ju, Xian-Ying Li, Chao-Hui Shen, Shi-Min Hu, Shi-Sheng Huang, Tao Ju, Xian-Ying Li, Chao-Hui Shen, Shi-Min Hu, Shi-Sheng Huang, Tao Ju, Xian-Ying Li, Chao-Hui Shen, Shi-Min Hu, Shi-Sheng Huang, Tao Ju, Xian-Ying Li
Issue Date:July 2010
pp. 1-10
Paper architectures are 3D paper buildings created by folding and cutting. The creation process of paper architecture is often labor-intensive and highly skill-demanding, even with the aid of existing computer-aided design tools. We propose an automatic al...
     
Developable Strip Approximation of Parametric Surfaces with Global Error Bounds
Found in: Computer Graphics and Applications, Pacific Conference on
By Yong-Jin Liu, Yu-Kun Lai, Shi-Min Hu
Issue Date:November 2007
pp. 441-444
Developable surfaces have many desired properties in manufacturing process. Since most existing CAD systems utilize parametric surfaces as the design primitive, there is a great demand in industry to convert a parametric surface within a prescribed global ...
 
RepFinder: finding approximately repeated scene elements for image editing
Found in: ACM Transactions on Graphics (TOG)
By Fang-Lue Zhang, Ming-Ming Cheng, Niloy J. Mitra, Shi-Min Hu, Xiaolei Huang, Fang-Lue Zhang, Ming-Ming Cheng, Niloy J. Mitra, Shi-Min Hu, Xiaolei Huang, Fang-Lue Zhang, Ming-Ming Cheng, Niloy J. Mitra, Shi-Min Hu, Xiaolei Huang, Fang-Lue Zhang, Ming-Ming Cheng, Niloy J. Mitra, Shi-Min Hu, Xiaolei Huang
Issue Date:July 2010
pp. 1-10
Repeated elements are ubiquitous and abundant in both manmade and natural scenes. Editing such images while preserving the repetitions and their relations is nontrivial due to overlap, missing parts, deformation across instances, illumination variation, et...
     
Automatic and topology-preserving gradient mesh generation for image vectorization
Found in: ACM Transactions on Graphics (TOG)
By Ralph R. Martin, Shi-Min Hu, Yu-Kun Lai, Ralph R. Martin, Shi-Min Hu, Yu-Kun Lai, Ralph R. Martin, Shi-Min Hu, Yu-Kun Lai, Ralph R. Martin, Shi-Min Hu, Yu-Kun Lai
Issue Date:July 2009
pp. 1-2
Gradient mesh vector graphics representation, used in commercial software, is a regular grid with specified position and color, and their gradients, at each grid point. Gradient meshes can compactly represent smoothly changing data, and are typically used ...
     
ISRA-Based Grouping: A Disk Reorganization Approach for Disk Energy Conservation and Disk Performance Enhancement
Found in: IEEE Transactions on Computers
By Xue-Liang Liao, Shi Bai, Yu-Ping Wang, Shi-Min Hu
Issue Date:February 2011
pp. 292-304
Reducing disk energy consumption and improving disk performance in high-performance computer systems are increasingly pressing issues for reasons of disk economy and efficiency. To achieve these goals, we define the concept of Immediate Successor Relations...
 
A New Watermarking Method for 3D Models Based on Integral Invariants
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yu-Ping Wang, Shi-Min Hu
Issue Date:March 2009
pp. 285--294
In this paper, we propose a new semi-fragile watermarking algorithm for the authentication of 3D models based on integral invariants. A watermark image is embedded by modifying the integral invariants of some of the vertices. In order to modify the integra...
 
Adaptive partitioning of urban facades
Found in: ACM Transactions on Graphics (TOG)
By Chao-Hui Shen, Hongbo Fu, Shi-Min Hu, Shi-Sheng Huang, Chao-Hui Shen, Hongbo Fu, Shi-Min Hu, Shi-Sheng Huang
Issue Date:December 2011
pp. 1-15
Automatically discovering high-level facade structures in unorganized 3D point clouds of urban scenes is crucial for applications like digitalization of real cities. However, this problem is challenging due to poor-quality input data, contaminated with sev...
     
Flow Field Modulation
Found in: IEEE Transactions on Visualization and Computer Graphics
By Bo Ren, Chen-Feng Li,M. C. Lin,T. Kim, Shi-Min Hu
Issue Date:October 2013
pp. 1708-1719
The nonlinear and nonstationary nature of Navier-Stokes equations produces fluid flows that can be noticeably different in appearance with subtle changes. In this paper, we introduce a method that can analyze the intrinsic multiscale features of flow field...
 
A Matrix-Based Approach to Reconstruction of 3D Objects from Three Orthographic Views
Found in: Computer Graphics and Applications, Pacific Conference on
By Shi-Xia Liu, Shi-Min Hu, Jia-Guang Sun, Chiew-Lan Tai
Issue Date:October 2000
pp. 254
In this paper, we present a matrix-based technique for reconstructing solids with quadric surface from three orthographic views. First, the relationship between a conic and its orthographic projections is developed using matrix theory. We then address the ...
 
Changing Perspective in Stereoscopic Images
Found in: IEEE Transactions on Visualization and Computer Graphics
By Song-Pei Du, Shi-Min Hu,R. R. Martin
Issue Date:August 2013
pp. 1288-1297
Traditional image editing techniques cannot be directly used to edit stereoscopic (
 
Timeline Editing of Objects in Video
Found in: IEEE Transactions on Visualization and Computer Graphics
By Shao-Ping Lu, Song-Hai Zhang, Jin Wei, Shi-Min Hu,R. R. Martin
Issue Date:July 2013
pp. 1218-1227
We present a video editing technique based on changing the timelines of individual objects in video, which leaves them in their original places but puts them at different times. This allows the production of object-level slow motion effects, fast motion ef...
 
PoseShop: Human Image Database Construction and Personalized Content Synthesis
Found in: IEEE Transactions on Visualization and Computer Graphics
By Tao Chen, Ping Tan, Li-Qian Ma, Ming-Ming Cheng,A. Shamir, Shi-Min Hu
Issue Date:May 2013
pp. 824-837
We present PoseShop - a pipeline to construct segmented human image database with minimal manual intervention. By downloading, analyzing, and filtering massive amounts of human images from the Internet, we achieve a database which contains 400 thousands hu...
 
Semiregular Solid Texturing from 2D Image Exemplars
Found in: IEEE Transactions on Visualization and Computer Graphics
By Song-Pei Du, Shi-Min Hu,R. R. Martin
Issue Date:March 2013
pp. 460-469
Solid textures, comprising 3D particles embedded in a matrix in a regular or semiregular pattern, are common in natural and man-made materials, such as brickwork, stone walls, plant cells in a leaf, etc. We present a novel technique for synthesizing such t...
 
View-Dependent Multiscale Fluid Simulation
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yue Gao, Chen-Feng Li, Bo Ren, Shi-Min Hu
Issue Date:February 2013
pp. 178-188
Fluid flows are highly nonlinear and nonstationary, with turbulence occurring and developing at different length and time scales. In real-life observations, the multiscale flow generates different visual impacts depending on the distance to the viewer. We ...
 
Poisson Coordinates
Found in: IEEE Transactions on Visualization and Computer Graphics
By Xian-Ying Li, Shi-Min Hu
Issue Date:February 2013
pp. 344-352
Harmonic functions are the critical points of a Dirichlet energy functional, the linear projections of conformal maps. They play an important role in computer graphics, particularly for gradient-domain image processing and shape-preserving geometric comput...
 
ImageAdmixture: Putting Together Dissimilar Objects from Groups
Found in: IEEE Transactions on Visualization and Computer Graphics
By Fang-Lue Zhang, Ming-Ming Cheng, Jiaya Jia, Shi-Min Hu
Issue Date:November 2012
pp. 1849-1857
We present a semiautomatic image editing framework dedicated to individual structured object replacement from groups. The major technical difficulty is element separation with irregular spatial distribution, hampering previous texture, and image synthesis ...
 
Fisheye Video Correction
Found in: IEEE Transactions on Visualization and Computer Graphics
By Jin Wei,Chen-Feng Li,Shi-Min Hu,Ralph R. Martin,Chiew-Lan Tai
Issue Date:October 2012
pp. 1771-1783
Various types of video can be captured with fisheye lenses; their wide field of view is particularly suited to surveillance video. However, fisheye lenses introduce distortion, and this changes as objects in the scene move, making fisheye video difficult t...
 
Global contrast based salient region detection
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Ming-Ming Cheng, Guo-Xin Zhang,N. J. Mitra, Xiaolei Huang, Shi-Min Hu
Issue Date:June 2011
pp. 409-416
Reliable estimation of visual saliency allows appropriate processing of images without prior knowledge of their contents, and thus remains an important step in many computer vision tasks including image segmentation, object recognition, and adaptive compre...
 
Metric-Driven RoSy Field Design and Remeshing
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yu-Kun Lai, Miao Jin, Xuexiang Xie, Ying He, Jonathan Palacios, Eugene Zhang, Shi-Min Hu, Xianfeng Gu
Issue Date:January 2010
pp. 95-108
Designing rotational symmetry fields on surfaces is an important task for a wide range of graphics applications. This work introduces a rigorous and practical approach for automatic N-RoSy field design on arbitrary surfaces with user-defined field topologi...
 
Vectorizing Cartoon Animations
Found in: IEEE Transactions on Visualization and Computer Graphics
By Song-Hai Zhang, Tao Chen, Yi-Fei Zhang, Shi-Min Hu, Ralph R. Martin
Issue Date:July 2009
pp. 618-629
We present a system for vectorizing 2D raster format cartoon animations. The output animations are visually flicker free, smaller in file size, and easy to edit. We identify decorative lines separately from colored regions. We use an accurate and semantica...
 
Fairing wireframes in industrial surface design
Found in: Shape Modeling and Applications, International Conference on
By Yu-Kun Lai, Yong-Jin Liu, Yu Zang, Shi-Min Hu
Issue Date:June 2008
pp. 29-35
Wireframe is a modeling tool widely used in industrial geometric design. The term wireframe refers to two sets of curves, with the property that each curve from one set intersects with each curve from the other set. Akin to the u-, v-isocurves in a tensor-...
 
Optimal Surface Parameterization Using Inverse Curvature Map
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yong-Liang Yang, Junho Kim, Feng Luo, Shi-Min Hu, Xianfeng Gu
Issue Date:September 2008
pp. 1054-1066
Mesh parameterization is a fundamental technique in computer graphics. Our paper focuses on solving the problem of finding the best discrete conformal mapping that also minimizes area distortion. Firstly, we deduce an exact analytical differential formula ...
 
Topology Repair of Solid Models Using Skeletons
Found in: IEEE Transactions on Visualization and Computer Graphics
By Qian-Yi Zhou, Tao Ju, Shi-Min Hu
Issue Date:July 2007
pp. 675-685
<p><b>Abstract</b>—We present a method for repairing topological errors on solid models in the form of small surface handles, which often arise from surface reconstruction algorithms. We utilize a skeleton representation that offers a new...
 
Robust Feature Classification and Editing
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yu-Kun Lai, Qian-Yi Zhou, Shi-Min Hu, Johannes Wallner, Helmut Pottmann
Issue Date:January 2007
pp. 34-45
<p><b>Abstract</b>—Sharp edges, ridges, valleys, and prongs are critical for the appearance and an accurate representation of a 3D model. In this paper, we propose a novel approach that deals with the global shape of features in a robust ...
 
Optimal Adaptive Learning for Image Retrieval
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Tao Wang, Yong Rui, Shi-Min Hu
Issue Date:December 2001
pp. 1140
Learning-enhanced relevance feedback is one of the most promising and active research directions in recent year?s content-based image retrieval. However, the existing approaches either require prior knowledge of the data or consume high computation cost, m...
 
On the Numerical Redundancies of Geometric Constraint Systems
Found in: Computer Graphics and Applications, Pacific Conference on
By Yan-Tao Li, Shi-Min Hu, Jia-Guang Sun
Issue Date:October 2001
pp. 0118
Determining redundant constraints is a critical task for geometric constraint solvers, since it dramatically affects the solution speed, accuracy, and stability. This paper attempts to determine the numerical redundancies of three-dimensional geometric con...
 
An Effective Feature-Preserving Mesh Simplification Scheme Based on Face Constriction
Found in: Computer Graphics and Applications, Pacific Conference on
By Jian-Hua Wu, Shi-Min Hu, Jia-Guang Sun, Chiew-Lan Tai
Issue Date:October 2001
pp. 0012
A new mesh simplification scheme that uses the face constriction process is presented. By introducing a statistical measure that can distinguish triangles having vertices of high local roughness from triangles in flat regions into our weight-ordering equat...
 
Sketch2Photo: internet image montage
Found in: ACM Transactions on Graphics (TOG)
By Ariel Shamir, Ming-Ming Cheng, Ping Tan, Shi-Min Hu, Tao Chen, Ariel Shamir, Ming-Ming Cheng, Ping Tan, Shi-Min Hu, Tao Chen
Issue Date:December 2009
pp. 1-2
We present a system that composes a realistic picture from a simple freehand sketch annotated with text labels. The composed picture is generated by seamlessly stitching several photographs in agreement with the sketch and text labels; these are found by s...
     
Efficient affinity-based edit propagation using K-D tree
Found in: ACM Transactions on Graphics (TOG)
By Kun Xu, Shi-Min Hu, Tao Ju, Tian-Qiang Liu, Yong Li, Kun Xu, Shi-Min Hu, Tao Ju, Tian-Qiang Liu, Yong Li
Issue Date:December 2009
pp. 1-2
Image/video editing by strokes has become increasingly popular due to the ease of interaction. Propagating the user inputs to the rest of the image/video, however, is often time and memory consuming especially for large data. We propose here an efficient s...
     
Salient Object Detection and Segmentation
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Ming-Ming Cheng,Niloy J. Mitra,Xiaolei Huang,Philip H. S. Torr,Shi-Min Hu
Issue Date:August 2014
pp. 1
Automatic estimation of salient object regions across images, without any prior assumption or knowledge of the contents of the corresponding scenes, enhances many computer vision and computer graphics applications. We introduce a regional contrast based sa...
 
Change Blindness Images
Found in: IEEE Transactions on Visualization and Computer Graphics
By Li-Qian Ma, Kun Xu, Tien-Tsin Wong, Bi-Ye Jiang, Shi-Min Hu
Issue Date:November 2013
pp. 1808-1819
Change blindness refers to human inability to recognize large visual changes between images. In this paper, we present the first computational model of change blindness to quantify the degree of blindness between an image pair. It comprises a novel context...
 
Qualitative organization of collections of shapes via quartet analysis
Found in: ACM Transactions on Graphics (TOG)
By Alla Sheffer, Ariel Shamir, Chao-Hui Shen, Daniel Cohen-Or, Hao Zhang, Shi-Min Hu, Shi-Sheng Huang
Issue Date:July 2013
pp. 1-10
We present a method for organizing a heterogeneous collection of 3D shapes for overview and exploration. Instead of relying on quantitative distances, which may become unreliable between dissimilar shapes, we introduce a qualitative analysis which utilizes...
     
Adaptive partitioning of urban facades
Found in: Proceedings of the 2011 SIGGRAPH Asia Conference (SA '11)
By Chao-Hui Shen, Hongbo Fu, Shi-Min Hu, Shi-Sheng Huang
Issue Date:December 2011
pp. 1-137
Automatically discovering high-level facade structures in unorganized 3D point clouds of urban scenes is crucial for applications like digitalization of real cities. However, this problem is challenging due to poor-quality input data, contaminated with sev...
     
Adaptive partitioning of urban facades
Found in: Proceedings of the 2011 SIGGRAPH Asia Conference (SA '11)
By Chao-Hui Shen, Hongbo Fu, Shi-Min Hu, Shi-Sheng Huang
Issue Date:December 2011
pp. 1-10
Automatically discovering high-level facade structures in unorganized 3D point clouds of urban scenes is crucial for applications like digitalization of real cities. However, this problem is challenging due to poor-quality input data, contaminated with sev...
     
Popup: automatic paper architectures from 3D models
Found in: ACM SIGGRAPH 2010 papers (SIGGRAPH '10)
By Chao-Hui Shen, Shi-Min Hu, Shi-Sheng Huang, Tao Ju, Xian-Ying Li
Issue Date:July 2010
pp. 10-18
Paper architectures are 3D paper buildings created by folding and cutting. The creation process of paper architecture is often labor-intensive and highly skill-demanding, even with the aid of existing computer-aided design tools. We propose an automatic al...
     
A practical algorithm for rendering interreflections with all-frequency BRDFs
Found in: ACM Transactions on Graphics (TOG)
By Kun Xu, Li-Qian Ma, Rui Wang, Shi-Min Hu, Yan-Pei Cao, Zhao Dong
Issue Date:January 2014
pp. 1-16
Algorithms for rendering interreflection (or indirect illumination) effects often make assumptions about the frequency range of the materials' reflectance properties. For example, methods based on Virtual Point Lights (VPLs) perform well for diffuse and se...
     
A metric of visual comfort for stereoscopic motion
Found in: ACM Transactions on Graphics (TOG)
By Belen Masia, Diego Gutierrez, Shi-Min Hu, Song-Pei Du
Issue Date:November 2013
pp. 1-9
We propose a novel metric of visual comfort for stereoscopic motion, based on a series of systematic perceptual experiments. We take into account disparity, motion in depth, motion on the screen plane, and the spatial frequency of luminance contrast. We fu...
     
Anisotropic spherical Gaussians
Found in: ACM Transactions on Graphics (TOG)
By Dan-Yong Zhao, Kun Xu, Zhao Dong, Run-Dong Wu, Shi-Min Hu, Wei-Lun Sun
Issue Date:November 2013
pp. 1-11
We present a novel anisotropic Spherical Gaussian (ASG) function, built upon the Bingham distribution [Bingham 1974], which is much more effective and efficient in representing anisotropic spherical functions than Spherical Gaussians (SGs). In addition to ...
     
PatchNet: a patch-based image representation for interactive library-driven image editing
Found in: ACM Transactions on Graphics (TOG)
By Fang-Lue Zhang, Jue Wang, Ralph R. Martin, Miao Wang, Shi-Min Hu
Issue Date:November 2013
pp. 1-12
We introduce PatchNets, a compact, hierarchical representation describing structural and appearance characteristics of image regions, for use in image editing. In a PatchNet, an image region with coherent appearance is summarized by a graph node, associate...
     
3-Sweep: extracting editable objects from a single photo
Found in: ACM Transactions on Graphics (TOG)
By Ariel Shamir, Shi-Min Hu, Daniel Cohen-Or, Tao Chen, Zhe Zhu
Issue Date:November 2013
pp. 1-10
We introduce an interactive technique for manipulating simple 3D shapes based on extracting them from a single photograph. Such extraction requires understanding of the components of the shape, their projections, and relations. These simple cognitive tasks...
     
Inverse image editing: recovering a semantic editing history from a before-and-after image pair
Found in: ACM Transactions on Graphics (TOG)
By Bin Liu, Jue Wang, Kun Xu, Bi-Ye Jiang, Li-Qian Ma, Shi-Min Hu
Issue Date:November 2013
pp. 1-11
We study the problem of inverse image editing, which recovers a semantically-meaningful editing history from a source image and an edited copy. Our approach supports a wide range of commonly-used editing operations such as cropping, object insertion and re...
     
Sketch2Scene: sketch-based co-retrieval and co-placement of 3D models
Found in: ACM Transactions on Graphics (TOG)
By Hongbo Fu, Kang Chen, Kun Xu, Shi-Min Hu, Wei-Lun Sun
Issue Date:July 2013
pp. 1-15
This work presents Sketch2Scene, a framework that automatically turns a freehand sketch drawing inferring multiple scene objects to semantically valid, well arranged scenes of 3D models. Unlike the existing works on sketch-based search and composition of 3...
     
Cubic mean value coordinates
Found in: ACM Transactions on Graphics (TOG)
By Shi-Min Hu, Tao Ju, Xian-Ying Li
Issue Date:July 2013
pp. 1-10
We present a new method for interpolating both boundary values and gradients over a 2D polygonal domain. Despite various previous efforts, it remains challenging to define a closed-form interpolant that produces natural-looking functions while allowing fle...
     
Structure recovery by part assembly
Found in: ACM Transactions on Graphics (TOG)
By Chao-Hui Shen, Hongbo Fu, Kang Chen, Shi-Min Hu
Issue Date:November 2012
pp. 1-11
This paper presents a technique that allows quick conversion of acquired low-quality data from consumer-level scanning devices to high-quality 3D models with labeled semantic parts and meanwhile their assembly reasonably close to the underlying geometry. T...
     
An optimization approach for extracting and encoding consistent maps in a shape collection
Found in: ACM Transactions on Graphics (TOG)
By Adrian Butscher, Guo-Xin Zhang, Leonidas Guibas, Lin Gao, Qi-Xing Huang, Shi-Min Hu
Issue Date:November 2012
pp. 1-11
We introduce a novel approach for computing high quality point-to-point maps among a collection of related shapes. The proposed approach takes as input a sparse set of imperfect initial maps between pairs of shapes and builds a compact data structure which...
     
Interactive images: cuboid proxies for smart image manipulation
Found in: ACM Transactions on Graphics (TOG)
By Kun Zhou, Ming-Ming Cheng, Niloy J. Mitra, Shi-Min Hu, Xiang Chen, Youyi Zheng
Issue Date:July 2012
pp. 1-11
Images are static and lack important depth information about the underlying 3D scenes. We introduce interactive images in the context of man-made environments wherein objects are simple and regular, share various non-local relations (e.g., coplanarity, par...
     
Interactive hair rendering and appearance editing under environment lighting
Found in: ACM Transactions on Graphics (TOG)
By Bo Ren, Kun Xu, Li-Qian Ma, Rui Wang, Shi-Min Hu
Issue Date:December 2011
pp. 1-15
We present an interactive algorithm for hair rendering and appearance editing under complex environment lighting represented as spherical radial basis functions (SRBFs). Our main contribution is to derive a compact 1D circular Gaussian representation that ...
     
Interactive hair rendering and appearance editing under environment lighting
Found in: Proceedings of the 2011 SIGGRAPH Asia Conference (SA '11)
By Bo Ren, Kun Xu, Li-Qian Ma, Rui Wang, Shi-Min Hu
Issue Date:December 2011
pp. 1-137
We present an interactive algorithm for hair rendering and appearance editing under complex environment lighting represented as spherical radial basis functions (SRBFs). Our main contribution is to derive a compact 1D circular Gaussian representation that ...
     
Interactive hair rendering and appearance editing under environment lighting
Found in: Proceedings of the 2011 SIGGRAPH Asia Conference (SA '11)
By Bo Ren, Kun Xu, Li-Qian Ma, Rui Wang, Shi-Min Hu
Issue Date:December 2011
pp. 1-10
We present an interactive algorithm for hair rendering and appearance editing under complex environment lighting represented as spherical radial basis functions (SRBFs). Our main contribution is to derive a compact 1D circular Gaussian representation that ...
     
A geometric study of v-style pop-ups: theories and algorithms
Found in: ACM SIGGRAPH 2011 papers (SIGGRAPH '11)
By Shi-Min Hu, Tao Ju, Xian-Ying Li, Yan Gu
Issue Date:August 2011
pp. 287-294
Pop-up books are a fascinating form of paper art with intriguing geometric properties. In this paper, we present a systematic study of a simple but common class of pop-ups consisting of patches falling into four parallel groups, which we call v-style pop-u...
     
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