SIGGRAPH

An object space method is given for interpolating between sampled and locally averaged signals, resulting in an antialiasing filter which provides a continuous transition from a sampled signal to its selectively dampened local averages. This method is ...

A supervisory process is used to distribute picture-generation tasks to heterogeneous subprocesses. Significant advantages accrue by tailoring the subprocesses to their tasks. In particular, scan conversion algorithms tailored to different surface types ...

The use of the point-line distance in evaluating the 2-dimensional anti-aliasing convolution is studied. We derive transformations of the point-spread function (PSF) that give the effective convolution in terms of the point-line distance when the class ...

The study of the physical process of light interacting with matter is an important part of computer image synthesis since it forms the basis for calculations of intensities in the picture. The simpler models used in the past are being augmented by more ...

This panel session will consist of reports from participants in the effort to standardize computer graphics functions in America. There are two principal goals. The first is to provide status reports for the groups represented by the panelists. The ...

The concept of virtual input devices, enunciated by Wallace, has been the accepted basis for producing device-independent interactive graphics systems. It was used by GSPC for the Core System, and it underlies the draft international standard GKS.

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Graphics metafiles have been in use at the Los Alamos National Laboratory since early 1977. The first metafile format was defined in 1976 and has been updated several times to allow efficient graphics support in the Los Alamos computing environment. ...

The big challenge for a graphics standardization project is to realise a truly device independent graphics package which nevertheless allows for unrestricted use of facilities offered by a particular device.

In 1980, it was reported at a SIGGRAPH ...

Much effort has been spent in defining a standard call interface for a library of routines with display primitives embedded in a three-dimensional space. This paper argues that this is now an inappropriate target. There is too much diversity in the ...

Andries van Dam

The panel will examine the evolution of the professional workstation from a time shared terminal to powerful graphics-based personal computer connected to a resource-sharing local network. The panelists will speculate on the future ...

Instead of storing boundary models of solids directly into a data base, it would be advantageous to map them first into a simpler form. This approach calls for a procedure called in this paper the inversion algorithm of a geometric model. We present and ...

We present some straightforward algorithms for the generation and display in 3-D of fractal shapes. These techniques are very general and particularly adapted to shapes which are much more costly to generate than to display, such as those fractal ...

The problem of approximating the surface spanning a given set of 3D points as a polyhedron of triangular faces (“triangulation”) is a significant one, and has many applications in the fields of computer graphics and computer vision. In this paper, ...

The design of complex geometric models has been and will continue to be one of the limiting factors in computer graphics. A careful enumeration of the properties of topologically correct models, so that they may be automatically enforced, can greatly ...

Computer Graphics has been an integral part of the computer environment since the mid-1950's with origins in military, academic and industrial applications.

Presidents of several leading computer graphics companies will discuss some of the issues they ...

To aid the system designers in achieving early involvement of the users, FLAIR (a user interface dialog design tool) was conceptualized and developed. FLAIR allows the designer to rapidly prototype a system's Man-Machine Interface.

A system designer can ...

The design and construction of the user interface to interactive systems is receiving increased attention. This paper describes a user interface management system that allows a designer/developer to focus on the logical functionality of an application ...

Any interactive system can be described in terms of the devices it involves, and their interconnections. Similarly, each device can be described in terms of simpler devices and their interconnections. Such descriptions are strictly modular, and well ...

The XEROX Star 8010 Information System features an integrated text and graphics editor. The Star hardware consists of a processor, a large bit-mapped display, a keyboard and a pointing device. Star's basic graphic elements are points, lines, rectangles, ...

Richard N. Spann

Companies supplying graphics CAD/CAM components and systems form an important high technology business segment. Panelists representing four financial perspectives will discuss market entry, financing, segment performance and shareholder'...

The Geometry Engine[1] is a special-purpose VLSI processor for computer graphics. It is a four-component vector, floating-point processor for accomplishing three basic operations in computer graphics: matrix transformations, clipping and mapping to ...

Recent articles have discussed the current trend towards designing raster graphics algorithms into VLSI chips. The purpose of these design efforts is to capture some of the real-time animation capability found in vector graphics systems. Currently, real-...

A display system architecture which has rectangular area filling as its primitive operation is presented. It is shown that lines can be drawn significantly faster with this architecture than with a pixel display system. The rendition of filled boxes is ...

Solid modelling systems in current use are based on approaches that are fundamentally different. The panelists will discuss the advantages and disadvantages of the different approaches, especially from the user's point of view.

This paper presents an interactive method for specifying a path in space and time through a three-dimensional environment. A sequence is generated by showing the series of views along the path. The sequence is previewed on a vector scope, and after it ...

In many applications of three dimensional computer graphics, the appearance of the same scene must be computed repeatedly for many different positions of the viewer. This paper concerns a scheme for exploiting this property of an application for the ...

Richard Rabin

Interactive graphics systems typically require intense “hands busy/eyes busy and brains busy” activity on the part of the system user/operator.

Voice input by means of automatic speech recognition equipment, offers major potential for ...

We begin by reviewing spatial data management—the technique of accessing and organizing information via its graphical representation in an organized spatial framework.

We describe an operational prototype system that exceeds the capabilities of other ...

This paper describes BROWSE, an interactive raster image display facility which is a major component of a larger integrated Map Assisted Photo-interpretation System (MAPS), being developed as a prototype interactive aid for photo-interpretation. ...

The storage of geographical data is a growing type of application within data processing.

Users want to retrieve parts of the data stored and to have them shown in graphical form. They need an easy and flexible query language to select the data needed ...