Proceedings of the 10th annual conference on Computer graphics and interactive techniques最新文献_第2页

Artists interfacing with technology: Basic concepts of digital creation 艺术家与技术的交互:数字创作的基本概念

Proceedings of the 10th annual conference on Computer graphics and interactive techniques Pub Date : 1983-07-01 DOI: 10.1145/800059.801162

F. Dietrich, Larry Cuba, Darcy Gerbarg, A. Lippman, D. Sandin

引用次数: 1

Minimal GKS 至少GKS

Proceedings of the 10th annual conference on Computer graphics and interactive techniques Pub Date : 1983-07-01 DOI: 10.1145/800059.801149

R. Simons

引用次数: 11

Computer graphics and visual designers (Panel Session) 计算机图形学和视觉设计师(小组讨论)

Proceedings of the 10th annual conference on Computer graphics and interactive techniques Pub Date : 1983-07-01 DOI: 10.1145/800059.801158

A. Marcus, D. Coates, W. Mitchell

引用次数: 0

Lighting controls for synthetic images 合成图像的照明控制

Proceedings of the 10th annual conference on Computer graphics and interactive techniques Pub Date : 1983-07-01 DOI: 10.1145/800059.801127

D. R. Warn

引用次数: 68

Ramifications of CAD/CAM on the automotive supplier community (Panel Session) CAD/CAM对汽车供应商的影响(小组讨论)

Proceedings of the 10th annual conference on Computer graphics and interactive techniques Pub Date : 1983-07-01 DOI: 10.1145/800059.801170

W. Hamann

引用次数: 0

Solid modeling(Panel Session) 实体建模(小组讨论)

Proceedings of the 10th annual conference on Computer graphics and interactive techniques Pub Date : 1983-07-01 DOI: 10.1145/800059.801146

R. Goldman, D. Gossard, R. Riesenfeld, H. Voelcker, T. Woo

引用次数: 0

Pyramidal parametrics 金字塔形的参数化

Proceedings of the 10th annual conference on Computer graphics and interactive techniques Pub Date : 1983-07-01 DOI: 10.1145/800059.801126

Lance Williams

{"title":"Pyramidal parametrics","authors":"Lance Williams","doi":"10.1145/800059.801126","DOIUrl":"https://doi.org/10.1145/800059.801126","url":null,"abstract":"The mapping of images onto surfaces may substantially increase the realism and information content of computer-generated imagery. The projection of a flat source image onto a curved surface may involve sampling difficulties, however, which are compounded as the view of the surface changes. As the projected scale of the surface increases, interpolation between the original samples of the source image is necessary; as the scale is reduced, approximation of multiple samples in the source is required. Thus a constantly changing sampling window of view-dependent shape must traverse the source image. To reduce the computation implied by these requirements, a set of prefiltered source images may be created. This approach can be applied to particular advantage in animation, where a large number of frames using the same source image must be generated. This paper advances a “pyramidal parametric” prefiltering and sampling geometry which minimizes aliasing effects and assures continuity within and between target images. Although the mapping of texture onto surfaces is an excellent example of the process and provided the original motivation for its development, pyramidal parametric data structures admit of wider application. The aliasing of not only surface texture, but also highlights and even the surface representations themselves, may be minimized by pyramidal parametric means.","PeriodicalId":381383,"journal":{"name":"Proceedings of the 10th annual conference on Computer graphics and interactive techniques","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115752599","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: 927

Solid model input through orthographic views 实体模型输入通过正交视图

Proceedings of the 10th annual conference on Computer graphics and interactive techniques Pub Date : 1983-07-01 DOI: 10.1145/800059.801155

H. Sakurai, D. Gossard

{"title":"Solid model input through orthographic views","authors":"H. Sakurai, D. Gossard","doi":"10.1145/800059.801155","DOIUrl":"https://doi.org/10.1145/800059.801155","url":null,"abstract":"This paper describes the results of basic studies on procedures for creating solid models of component geometry from two-dimensional orthographic projections. An interactive graphic program was developed to allow the input of three orthographic views of a component geometry by digitizing from a drawing. The views may contain straight lines and circular arcs, solid or dashed. No restrictions are placed on the order or direction of lines and arcs in any view. Using an extension of the Wesley-Markowski procedure, the program constructs a three-dimensional solid model of the object. When the projections are ambiguous, multiple solid models are produced. The solid model may contain planar, cylindrical, conical, spherical and toroidal surfaces. Topological information of the solid model is stored in a winged edge structure. Geometric information is stored as vertex coordinates and surface equations. The procedure for 2D-3D conversion provides a powerful new method for manual input of solid models, a common interface to all turnkey graphics systems, and, properly integrated with existing technology for scanning of drawings, a powerful new method for acquisition of CAD/CAM data bases from existing drawings. The procedure is described, examples of typical input and output are shown, and possible extensions are discussed.","PeriodicalId":381383,"journal":{"name":"Proceedings of the 10th annual conference on Computer graphics and interactive techniques","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126087387","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: 114

Computer graphics in higher education (Panel Session) 高等教育中的计算机图形学(小组讨论)

Proceedings of the 10th annual conference on Computer graphics and interactive techniques Pub Date : 1983-07-01 DOI: 10.1145/800059.801129

J. Foley, A. Bork, Maxine D. Brown, Robin G. King, A. V. Dam, M. Wozny

引用次数: 5

Modeling motion blur in computer-generated images 在计算机生成的图像中建模运动模糊

Proceedings of the 10th annual conference on Computer graphics and interactive techniques Pub Date : 1983-07-01 DOI: 10.1145/800059.801169

M. Potmesil, I. Chakravarty

{"title":"Modeling motion blur in computer-generated images","authors":"M. Potmesil, I. Chakravarty","doi":"10.1145/800059.801169","DOIUrl":"https://doi.org/10.1145/800059.801169","url":null,"abstract":"This paper describes a procedure for modeling motion blur in computer-generated images. Motion blur in photography or cinematography is caused by the motion of objects during the finite exposure time the camera shutter remains open to record the image on film. In computer graphics, the simulation of motion blur is useful both in animated sequences where the blurring tends to remove temporal aliasing effects and in static images where it portrays the illusion of speed or movement among the objects in the scene. The camera model developed for simulating motion blur is described in terms of a generalized image-formation equation. This equation describes the relationship between the object and corresponding image points in terms of the optical system-transfer function. The use of the optical system-transfer function simplifies the description of time-dependent variations of object motion that may occur during the exposure time of a camera. This approach allows us to characterize the motion of objects by a set of system-transfer functions which are derived from the path and velocity of objects in the scene and the exposure time of a camera.","PeriodicalId":381383,"journal":{"name":"Proceedings of the 10th annual conference on Computer graphics and interactive techniques","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131971923","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: 180