ACM SIGGRAPH 2003 Papers最新文献_第10页

Interactive boolean operations on surfel-bounded solids 曲面有界实体上的交互布尔运算

ACM SIGGRAPH 2003 Papers Pub Date : 2003-07-01 DOI: 10.1145/1201775.882320

B. Adams, P. Dutré

引用次数: 121

Discrete multiscale vector field decomposition 离散多尺度向量场分解

ACM SIGGRAPH 2003 Papers Pub Date : 2003-07-01 DOI: 10.1145/1201775.882290

Y. Tong, S. Lombeyda, A. N. Hirani, M. Desbrun

引用次数: 274

Smoke simulation for large scale phenomena 大尺度现象的烟雾模拟

ACM SIGGRAPH 2003 Papers Pub Date : 2003-07-01 DOI: 10.1145/1201775.882335

Nick Rasmussen, Duc Quang Nguyen, William A. Geiger, Ronald Fedkiw

引用次数: 177

Linear light source reflectometry 线性光源反射计

ACM SIGGRAPH 2003 Papers Pub Date : 2003-07-01 DOI: 10.1145/1201775.882342

A. Gardner, C. Tchou, Tim Hawkins, P. Debevec

{"title":"Linear light source reflectometry","authors":"A. Gardner, C. Tchou, Tim Hawkins, P. Debevec","doi":"10.1145/1201775.882342","DOIUrl":"https://doi.org/10.1145/1201775.882342","url":null,"abstract":"This paper presents a technique for estimating the spatially-varying reflectance properties of a surface based on its appearance during a single pass of a linear light source. By using a linear light rather than a point light source as the illuminant, we are able to reliably observe and estimate the diffuse color, specular color, and specular roughness of each point of the surface. The reflectometry apparatus we use is simple and inexpensive to build, requiring a single direction of motion for the light source and a fixed camera viewpoint. Our model fitting technique first renders a reflectance table of how diffuse and specular reflectance lobes would appear under moving linear light source illumination. Then, for each pixel we compare its series of intensity values to the tabulated reflectance lobes to determine which reflectance model parameters most closely produce the observed reflectance values. Using two passes of the linear light source at different angles, we can also estimate per-pixel surface normals as well as the reflectance parameters. Additionally our system records a per-pixel height map for the object and estimates its per-pixel translucency. We produce real-time renderings of the captured objects using a custom hardware shading algorithm. We apply the technique to a test object exhibiting a variety of materials as well as to an illuminated manuscript with gold lettering. To demonstrate the technique's accuracy, we compare renderings of the captured models to real photographs of the original objects.","PeriodicalId":314969,"journal":{"name":"ACM SIGGRAPH 2003 Papers","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130562237","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: 218

Hierarchical mesh decomposition using fuzzy clustering and cuts 分层网格分解采用模糊聚类和切割

ACM SIGGRAPH 2003 Papers Pub Date : 2003-07-01 DOI: 10.1145/1201775.882369

S. Katz, A. Tal

引用次数: 744

TreeJuxtaposer: scalable tree comparison using Focus+Context with guaranteed visibility tree并置:可扩展的树比较使用焦点+上下文与保证可见性

ACM SIGGRAPH 2003 Papers Pub Date : 2003-07-01 DOI: 10.1145/1201775.882291

T. Munzner, François Guimbretière, S. Tasiran, Li Zhang, Yunhong Zhou

{"title":"TreeJuxtaposer: scalable tree comparison using Focus+Context with guaranteed visibility","authors":"T. Munzner, François Guimbretière, S. Tasiran, Li Zhang, Yunhong Zhou","doi":"10.1145/1201775.882291","DOIUrl":"https://doi.org/10.1145/1201775.882291","url":null,"abstract":"Structural comparison of large trees is a difficult task that is only partially supported by current visualization techniques, which are mainly designed for browsing. We present TreeJuxtaposer, a system designed to support the comparison task for large trees of several hundred thousand nodes. We introduce the idea of \"guaranteed visibility\", where highlighted areas are treated as landmarks that must remain visually apparent at all times. We propose a new methodology for detailed structural comparison between two trees and provide a new nearly-linear algorithm for computing the best corresponding node from one tree to another. In addition, we present a new rectilinear Focus+Context technique for navigation that is well suited to the dynamic linking of side-by-side views while guaranteeing landmark visibility and constant frame rates. These three contributions result in a system delivering a fluid exploration experience that scales both in the size of the dataset and the number of pixels in the display. We have based the design decisions for our system on the needs of a target audience of biologists who must understand the structural details of many phylogenetic, or evolutionary, trees. Our tool is also useful in many other application domains where tree comparison is needed, ranging from network management to call graph optimization to genealogy.","PeriodicalId":314969,"journal":{"name":"ACM SIGGRAPH 2003 Papers","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128283372","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: 338

Rhythmic-motion synthesis based on motion-beat analysis 基于动作-节拍分析的节奏-动作合成

ACM SIGGRAPH 2003 Papers Pub Date : 2003-07-01 DOI: 10.1145/1201775.882283

Tae-Hoon Kim, Sang Il Park, Sung-yong Shin

引用次数: 214

Relighting with 4D incident light fields 用4D入射光场重新照明

ACM SIGGRAPH 2003 Papers Pub Date : 2003-07-01 DOI: 10.1145/1201775.882315

Vincent Masselus, P. Peers, P. Dutré, Y. Willems

引用次数: 137

Twister: a space-warp operator for the two-handed editing of 3D shapes Twister:用于双手编辑3D形状的空间扭曲操作器

ACM SIGGRAPH 2003 Papers Pub Date : 2003-07-01 DOI: 10.1145/1201775.882323

Ignacio Llamas, ByungMoon Kim, Joshua Gargus, J. Rossignac, Chris Shaw

{"title":"Twister: a space-warp operator for the two-handed editing of 3D shapes","authors":"Ignacio Llamas, ByungMoon Kim, Joshua Gargus, J. Rossignac, Chris Shaw","doi":"10.1145/1201775.882323","DOIUrl":"https://doi.org/10.1145/1201775.882323","url":null,"abstract":"A free-form deformation that warps a surface or solid may be specified in terms of one or several point-displacement constraints that must be interpolated by the deformation. The Twister approach introduced here, adds the capability to impose an orientation change, adding three rotational constraints, at each displaced point. Furthermore, it solves for a space warp that simultaneously interpolates two sets of such displacement and orientation constraints. With a 6 DoF magnetic tracker in each hand, the user may grab two points on or near the surface of an object and simultaneously drag them to new locations while rotating the trackers to tilt, bend, or twist the shape near the displaced points. Using a new formalism based on a weighted average of screw displacements, Twister computes in realtime a smooth deformation, whose effect decays with distance from the grabbed points, simultaneously interpolating the 12 constraints. It is continuously applied to the shape, providing realtime graphic feedback. The two-hand interface and the resulting deformation are intuitive and hence offer an effective direct manipulation tool for creating or modifying 3D shapes.","PeriodicalId":314969,"journal":{"name":"ACM SIGGRAPH 2003 Papers","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116270226","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: 125

Light scattering from human hair fibers 人类头发纤维的光散射

ACM SIGGRAPH 2003 Papers Pub Date : 2003-07-01 DOI: 10.1145/1201775.882345

Steve Marschner, H. Jensen, Mike Cammarano, Steven Worley, P. Hanrahan

引用次数: 318