Proceedings of the 29th annual conference on Computer graphics and interactive techniques最新文献_第8页

Animation and rendering of complex water surfaces 复杂水面的动画和渲染

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566645

Douglas Enright, Steve Marschner, Ronald Fedkiw

引用次数: 690

Light field mapping: efficient representation and hardware rendering of surface light fields 光场映射:表面光场的有效表示和硬件渲染

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566601

Wei-Chao Chen, J. Bouguet, Michael H. Chu, R. Grzeszczuk

{"title":"Light field mapping: efficient representation and hardware rendering of surface light fields","authors":"Wei-Chao Chen, J. Bouguet, Michael H. Chu, R. Grzeszczuk","doi":"10.1145/566570.566601","DOIUrl":"https://doi.org/10.1145/566570.566601","url":null,"abstract":"A light field parameterized on the surface offers a natural and intuitive description of the view-dependent appearance of scenes with complex reflectance properties. To enable the use of surface light fields in real-time rendering we develop a compact representation suitable for an accelerated graphics pipeline. We propose to approximate the light field data by partitioning it over elementary surface primitives and factorizing each part into a small set of lower-dimensional functions. We show that our representation can be further compressed using standard image compression techniques leading to extremely compact data sets that are up to four orders of magnitude smaller than the input data. Finally, we develop an image-based rendering method, light field mapping, that can visualize surface light fields directly from this compact representation at interactive frame rates on a personal computer. We also implement a new method of approximating the light field data that produces positive only factors allowing for faster rendering using simpler graphics hardware than earlier methods. We demonstrate the results for a variety of non-trivial synthetic scenes and physical objects scanned through 3D photography.","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130991617","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: 257

Image-based 3D photography using opacity hulls 使用不透明船体的基于图像的3D摄影

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566599

W. Matusik, H. Pfister, A. Ngan, P. Beardsley, R. Ziegler, L. McMillan

{"title":"Image-based 3D photography using opacity hulls","authors":"W. Matusik, H. Pfister, A. Ngan, P. Beardsley, R. Ziegler, L. McMillan","doi":"10.1145/566570.566599","DOIUrl":"https://doi.org/10.1145/566570.566599","url":null,"abstract":"We have built a system for acquiring and displaying high quality graphical models of objects that are impossible to scan with traditional scanners. Our system can acquire highly specular and fuzzy materials, such as fur and feathers. The hardware set-up consists of a turntable, two plasma displays, an array of cameras, and a rotating array of directional lights. We use multi-background matting techniques to acquire alpha mattes of the object from multiple viewpoints. The alpha mattes are used to construct an opacity hull. The opacity hull is a new shape representation, defined as the visual hull of the object with view-dependent opacity. It enables visualization of complex object silhouettes and seamless blending of objects into new environments. Our system also supports relighting of objects with arbitrary appearance using surface reflectance fields, a purely image-based appearance representation. Our system is the first to acquire and render surface reflectance fields under varying illumination from arbitrary viewpoints. We have built three generations of digitizers with increasing sophistication. In this paper, we present our results from digitizing hundreds of models.","PeriodicalId":197746,"journal":{"name":"Proceedings of the 29th annual conference on Computer graphics and interactive techniques","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127050848","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: 242

Transferring color to greyscale images 将颜色转移到灰度图像

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566576

Tom Welsh, M. Ashikhmin, K. Mueller

引用次数: 890

Gradient domain high dynamic range compression 梯度域高动态范围压缩

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566573

Raanan Fattal, Dani Lischinski, M. Werman

引用次数: 1467

Dual contouring of hermite data 埃尔米特数据的双重轮廓

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566586

T. Ju, Frank Losasso, S. Schaefer, J. Warren

引用次数: 722

Physically based modeling and animation of fire 基于物理建模和动画的火

Proceedings of the 29th annual conference on Computer graphics and interactive techniques Pub Date : 2002-07-01 DOI: 10.1145/566570.566643

Duc Quang Nguyen, Ronald Fedkiw, H. Jensen

引用次数: 389