2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics

15-18 Oct. 2007

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  • [Front cover]

    Publication Year: 2007, Page(s): C1
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  • Proceedings of 2007 10th IEEE International Conference on Computer Aided Design and Computer Graphics

    Publication Year: 2007, Page(s): nil1
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  • [Copyright notice]

    Publication Year: 2007, Page(s): nil2
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  • [Advertisement]

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  • Preface

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  • Committees

    Publication Year: 2007, Page(s):nil5 - nil9
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  • Contents

    Publication Year: 2007, Page(s):1 - 7
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  • Graphical Modeling and Calligraphic Interfaces

    Publication Year: 2007, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (40 KB) | HTML iconHTML

    Summary form only given. CAD systems now enable us to manufacture complicated models. However, computers have yet to become usable at the very early stages of product design, where pencil and paper still reign. This is because present-day systems, with their focus on internal representation and dialogue hierarchies, require designers to leap large conceptual gaps when evolving from their idea of a... View full abstract»

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  • CAD System for Human-Centered Design

    Publication Year: 2007, Page(s): 2
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    Summary form only given. Due to globalization and increasingly competitive market environments, modern products must meet more requirements than ever before. They must not only be functional and aesthetically pleasing, but comfortable and ergonomic, as well. Consumers increasingly demand products that are easy to use and causes the minimum fatigue on the user side. Similar design elements are also... View full abstract»

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  • Physically Based Simulation of Fluid Mixtures

    Publication Year: 2007, Page(s):3 - 4
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    In our work, we mainly use a lattice Boltzmann method (LBM) to simulate the underlying dynamics of miscible mixtures in binary fluid simulation called TFLBM. However, it suffers from the limitation of only resolving mixture flows with low Reynolds number, and it would blow up when the Reynolds number gets higher. In order to resolve such mixture flows with higher Reynolds number, by further invest... View full abstract»

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  • Efficient Methods for Global/Environment Illumination

    Publication Year: 2007, Page(s):5 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (871 KB) | HTML iconHTML

    In the computer graphics field, improving reality and reducing computational cost are both very important, thus a lot of research has been done to improve these two factors. For reality, physically based lighting models play an important role. Especially shadows and interreflections of light have a great impact on perceptual reality. To improve computational speed, exploiting the parallel processi... View full abstract»

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  • From Measured Fabric to the Simulation of Cloth

    Publication Year: 2007, Page(s):7 - 18
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (738 KB) | HTML iconHTML

    Cloth simulation and fabric measurement are tightly linked areas of research. In order to obtain high quality animations of dressed models, the properties of the simulated garment must first be evaluated in an accurate and adapted way. As cloth is a very complex, isotropic material, the evaluation of its properties is difficult to achieve, and various approaches exist. Depending on the design of t... View full abstract»

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  • Improved Error Estimate for Extraordinary Catmull-Clark Subdivision Surface Patches

    Publication Year: 2007, Page(s): 19
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    Summary form only given. Based on an optimal estimate of the convergence rate of the second order norm, an improved error estimate for extraordinary Catmull-Clark subdivision surface (CCSS) patches is proposed. If the valence of the extraordinary vertex of an extraordinary CCSS patch is even, a tighter error bound and, consequently, a more precise subdivision depth for a given error tolerance, can... View full abstract»

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  • 3D Shape Metamorphosis Based on T-spline Level Sets

    Publication Year: 2007, Page(s): 20
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (43 KB) | HTML iconHTML

    Summary form only given. We propose a new method for 3D shape metamorphosis, where the in-between objects are constructed by using T-spline scalar functions. The use of T-spline level sets offers several advantages: First, it is convenient to handle complex topology changes without the need of model parameterization. Second, the constructed objects are smooth (C2 in our case). Third, high quality ... View full abstract»

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  • Registration of CAD Mesh Models with CT Volumetric Model of Assembly of Machine Parts

    Publication Year: 2007, Page(s): 21
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (42 KB)

    Summary form only given. X-ray CT (computed tomography) has experienced tremendous growth in industrial application in recent years, and acquiring information about the mechanical parts from CT data has been a great challenge for researchers. This paper presents a new method for the registration of a CT volumetric model of an assembly of parts with a CAD mesh model of a part of the assembly using ... View full abstract»

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  • A Robust Hole-Filling Algorithm for Triangular Mesh

    Publication Year: 2007, Page(s): 22
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    Summary form only given. This paper presents a novel hole-filling algorithm that can fill arbitrary holes in triangular mesh models. First, the advancing front mesh technique is used to cover the hole with newly created triangles. Next, the desirable normals of the new triangles are approximated using our desirable normal computing schemes. Finally, the three coordinates of every new vertex are re... View full abstract»

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  • Dynamic Delaunay Tetrahedralisation of a Deforming Surface

    Publication Year: 2007, Page(s): 23
    Cited by:  Papers (1)
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    Summary form only given. Reconstruction algorithms make it possible to retrieve a surface from the Delaunay tetrahedralisation (DT) of a point sampling, whose density reflects the surface local geometry and thickness. Most of these algorithms are static and some work remains to be done to handle deforming surfaces. In such case, we defend the idea that each point of the sampling should move with t... View full abstract»

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  • Surface Modeling with Polynomial Splines over Hierarchical T-meshes

    Publication Year: 2007, Page(s): 24
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (42 KB)

    Computer graphics and computer-aided design communities prefer piecewise spline patches to represent surfaces. But keeping the smoothness between the adjacent patches is a challenging task. In this paper, we present a method for stitching several surface patches, which is a key step in complicated surface modeling, with polynomial splines over hierarchical T-meshes (PHT-spline for short). The meth... View full abstract»

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  • Computing Shortest Cycles Using Universal Covering Space

    Publication Year: 2007, Page(s): 25
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    Summary form only given. In this paper we generalize the shortest path algorithm to the shortest cycles in each homotopy class on a surface with arbitrary topology, utilizing the universal covering space (UCS) in algebraic topology. In order to store and handle the UCS, we propose a two-level data structure which is efficient for storage and easy to process. We also pointed several practical appli... View full abstract»

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  • Proper Reparametrization of Rational Ruled Surface

    Publication Year: 2007, Page(s): 26
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    Summary form only given. In this paper, we present a proper reparametrization algorithm for rational ruled surfaces. That is, for an improper rational parametrization of a ruled surface, we construct a proper rational parametrization for the same surface. The algorithm consists of three steps. We first reparametrize the improper rational parametrization caused by improper supports. Then the improp... View full abstract»

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  • Smooth Surface Constructions via a Higher-Order Level-Set Method

    Publication Year: 2007, Page(s): 27
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    We present a general framework for a higher-order spline level-set (HLS) method and apply this to smooth surface constructions. Starting from a first order energy functional, we obtain a general level set formulation of geometric partial differential equation, and provide an efficient approach to solve this partial differential equation using a C2 spline basis. We also present a fast cu... View full abstract»

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  • Implicit Surface Modeling Suitable for Inside/Outside Tests with Radial Basis Functions

    Publication Year: 2007, Page(s): 28
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (43 KB)

    We describe a method for computing an implicit function that represents a surface by its zero level set, given a set of points scattered over the surface and associated with surface normal vectors. This implicit function is defined as a linear combination of compactly supported radial basis functions. Our method is suitable for testing whether a given point is interior or exterior to the surface, ... View full abstract»

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  • A Feature Preserving and Volume Shrinking Prevented Mesh Smoothing Algorithm

    Publication Year: 2007, Page(s): 29
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (44 KB)

    This paper presents a novel mesh denoising and smoothing method. We first estimate the principal curvatures and mesh saliency value of each vertex of the mesh, the uniform principal curvatures of a vertex is then calculated based on the weighted average of local mesh saliency values. The weighted bi-cubic Bezier surface is used to fit the neighborhood of a vertex by the least square method, and th... View full abstract»

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  • A Robust and Fast Non-local Means Algorithm for Image Denoising

    Publication Year: 2007, Page(s): 30
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (45 KB)

    In the paper, we propose a robust and fast image denoising method. The approach integrates both 'Non-Local means algorithm and Laplacian Pyramid. Given an image to be denoised, we first decompose it into Laplacian pyramid. Exploiting the redundancy property of Laplacian pyramid, we then perform non-local means on every level image of Laplacian pyramid. Essentially, we use the similarity of image f... View full abstract»

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  • Stylized Liquid Animation with Temporal Coherence

    Publication Year: 2007, Page(s): 31
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    Summary form only given. Our liquid simulator is mainly based on octree-staggered grid. We use the compact difference scheme which is often used in non-staggered grid to achieve fourth order accuracy. We modified the compact scheme suitable to adaptive octree-staggered grid. In stylized rendering procedure, we use 2D texture mapping method to generate still images. Laplacian scheme smoothing in ti... View full abstract»

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