ACM Symposium on Solid Modeling and Applications最新文献_第3页

Multiresolution heterogeneous solid modeling and visualization using trivariate simplex splines 使用三元单纯样条的多分辨率异构实体建模和可视化

ACM Symposium on Solid Modeling and Applications Pub Date : 2004-06-09 DOI: 10.2312/SM.20041376

Jing Hua, Ying He, Hong Qin

{"title":"Multiresolution heterogeneous solid modeling and visualization using trivariate simplex splines","authors":"Jing Hua, Ying He, Hong Qin","doi":"10.2312/SM.20041376","DOIUrl":"https://doi.org/10.2312/SM.20041376","url":null,"abstract":"This paper presents a new and powerful heterogeneous solid modeling paradigm for representing, modeling, and rendering of multi-dimensional, physical attributes across any volumetric objects. The modeled solid can be of complicated geometry and arbitrary topology. It is formulated using a trivariate simplex spline defined over a tetrahedral decomposition of any 3D domain. Heterogeneous material attributes associated with solid geometry can be modeled and edited by manipulating the control vectors and/or associated knots of trivariate simplex splines easily. The multiresolution capability is achieved by interactively subdividing any regions of interest and allocating more knots and control vectors accordingly. We also develop a feature-sensitive fitting algorithm that can reconstruct a more compact, continuous trivariate simplex spline from structured or unstructured volumetric grids. This multiresolution representation results from the adaptive and progressive tetrahedralization of the 3D domain. In addition, based on the simplex spline theory, we derive several theoretical formula and propose a fast direct rendering algorithm for interactive data analysis and visualization of the simplex spline volumes. Our experiments demonstrate that the proposed paradigm augments the current modeling and visualization techniques with the new and unique advantages.","PeriodicalId":405863,"journal":{"name":"ACM Symposium on Solid Modeling and Applications","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126577493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 42

ACM Symposium on Solid Modeling and Applications Pub Date : 2004-06-09 DOI: 10.2312/SM.20041402

T. Hwang, Kunwoo Lee, H. Y. Oh, J. Jeong

引用次数: 7

Handling degeneracies in exact boundary evaluation 处理精确边界求值中的简并

ACM Symposium on Solid Modeling and Applications Pub Date : 2004-06-09 DOI: 10.2312/SM.20041409

Koji Ouchi, J. Keyser

引用次数: 9

Residual iteration and accurate polynomial evaluation for shape-interrogation applications 形状查询应用的残差迭代和精确多项式求值

ACM Symposium on Solid Modeling and Applications Pub Date : 2004-06-09 DOI: 10.2312/SM.20041371

C. Hoffmann, Gahyun Park, J. Simard, N. F. Stewart

引用次数: 9

Reconstruction with 3D geometric bilateral filter 三维几何双边滤波器重建

ACM Symposium on Solid Modeling and Applications Pub Date : 2004-06-09 DOI: 10.2312/SM.20041393

Alex Miropolsky, A. Fischer

引用次数: 35

Planar parameterization for closed 2-manifold genus-1 meshes 封闭2流形1属网格的平面参数化

ACM Symposium on Solid Modeling and Applications Pub Date : 2004-06-09 DOI: 10.2312/SM.20041379

D. Steiner, A. Fischer

{"title":"Planar parameterization for closed 2-manifold genus-1 meshes","authors":"D. Steiner, A. Fischer","doi":"10.2312/SM.20041379","DOIUrl":"https://doi.org/10.2312/SM.20041379","url":null,"abstract":"Parameterization of 3D meshes is important for many graphics and CAD applications, in particular for texture mapping, re-meshing and morphing. Current parameterization methods for closed manifold genus-n meshes usually involve cutting the mesh according to the object generators, fixing the resulting boundary and then applying the 2D position for each of the mesh vertices on a plane, such that the flattened triangles are not too distorted and do not overlap. Unfortunately, fixing the boundary distorts the resulting parameterization, especially near the boundary. A special case is that of closed manifold genus-1 meshes that have two generators. They can therefore be flattened naturally to a plane without the use of a fixed boundary while still maintaining the continuity of the parameterization. Therefore, in treating genus-1 objects, this attribute must be exploited. This paper introduces a generalized method for planar parameterization of closed manifold genus-1 meshes. As in any planar parameterization with a fixed boundary, weights are assigned over the mesh edges. The type of weights defined depends on the type of mesh characteristics to be preserved. The paper proves that the method satisfies the non-overlapping requirement for any type of positive barycentric weights, including nonsymmetrical weights. Moreover, convergence is guaranteed according to the Gauss-Seidel method. The proposed method is simple to implement, fast and robust. The feasibility of the method will be demonstrated on several complex objects.","PeriodicalId":405863,"journal":{"name":"ACM Symposium on Solid Modeling and Applications","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121173387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Image based bio-cad modeling and its applications to biomedical and tissue engineering 基于图像的生物cad建模及其在生物医学和组织工程中的应用

ACM Symposium on Solid Modeling and Applications Pub Date : 2004-06-09 DOI: 10.2312/SM.20041401

B. Starly, A. Darling, Conny Gomez, J. Nam, Wei Sun, A. Shokoufandeh, W. Regli

{"title":"Image based bio-cad modeling and its applications to biomedical and tissue engineering","authors":"B. Starly, A. Darling, Conny Gomez, J. Nam, Wei Sun, A. Shokoufandeh, W. Regli","doi":"10.2312/SM.20041401","DOIUrl":"https://doi.org/10.2312/SM.20041401","url":null,"abstract":"CAD has been traditionally used to assist in engineering design and modeling for representation, analysis and manufacturing. Advances in Information Technology and in Biomedicine have created new uses for CAD with many novel and important biomedical applications, particularly in tissue engineering in which the CAD based bio-tissue informatics model provides critical information of tissue biological, biophysical, and biochemical properties for modeling, design, and fabrication of complex tissue substitutes. This paper will present some salient advances of bio-CAD modeling and application in computer-aided tissue engineering, including biomimetic design, analysis, simulation and freeform fabrication of tissue engineered substitutes. Overview of computer-aided tissue engineering will be given. Methodology to generate bio-CAD modeling from high resolution non-invasive imaging, the medical imaging process and the 3D reconstruction technique will be described. Enabling state-of-the-art computer program in assisting the 3D reconstruction and in bio-modeling development will be introduced. Utilization of the bio-CAD model for the description and representation of the morphology, heterogeneity, and organizational structure of tissue anatomy will also be presented.","PeriodicalId":405863,"journal":{"name":"ACM Symposium on Solid Modeling and Applications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130683173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Stability and homotopy of a subset of the medial axis 内轴子集的稳定性和同伦

ACM Symposium on Solid Modeling and Applications Pub Date : 2004-06-09 DOI: 10.2312/SM.20041396

F. Chazal, A. Lieutier

引用次数: 47

Efficient and robust computation of an approximated medial axis 有效和鲁棒的计算近似的中间轴

ACM Symposium on Solid Modeling and Applications Pub Date : 2004-06-09 DOI: 10.2312/SM.20041372

Yuandong Yang, O. Brock, R. Moll

{"title":"Efficient and robust computation of an approximated medial axis","authors":"Yuandong Yang, O. Brock, R. Moll","doi":"10.2312/SM.20041372","DOIUrl":"https://doi.org/10.2312/SM.20041372","url":null,"abstract":"The medial axis can be viewed as a compact representation for an arbitrary model; it is an essential geometric structure in many applications. A number of practical algorithms for its computation have been aimed at speeding up its computation and at addressing its instabilities. In this paper we propose a new algorithm to compute the medial axis with arbitrary precision. It exhibits several desirable properties not previously combined in a practical and efficient algorithm. First, it allows for a tradeoff between computation time and accuracy, making it well-suited for applications in which an approximation of the medial axis suffices, but computational efficiency is of particular concern. Second, it is output sensitive: the computation complexity of the algorithm does not depend on the size of the representation of a model, but on the size of the representation of the resulting medial axis. Third, the densities of the approximated medial axis points in different areas are adaptive to local free space volumes, based on the assumption that a coarser approximation in wide open area can still suffice the requirements of the applications. We present theoretical results, bounding the error introduced by the approximation process. The algorithm has been implemented and experimental results are presented that illustrate its computational efficiency and robustness.","PeriodicalId":405863,"journal":{"name":"ACM Symposium on Solid Modeling and Applications","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131729154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 34

Update operations on 3D simplicial decompositions of non-manifold objects 非流形物体三维简单分解的更新操作

ACM Symposium on Solid Modeling and Applications Pub Date : 2004-06-09 DOI: 10.5555/1217875.1217900

L. Floriani, Annie Hui

引用次数: 6