We describe a novel approach for unifying computer graphics and computer vision systems, and our initial results in building and using a prototype system. This approach has three significant characteristics: unification of the real and virtual worlds for both input and output, tele-collaboration between remote participants, and interaction between heterogeneous stand-alone 3-dimensional (3D) gr...

We describe recent work aimed at the integration of a visualization package and a virtual reality system, with the emphasis on the re-use and enhancement of commercially available products. The objective of the work is to determine what advantages (if any) are to be gained by combining the visualization package (which is well-suited for the conversion of numerical data into appropriate geometri...

In the UK computer-generated presentations are becoming an increasingly important visual aid in courtroom and inquest situations, where complex data relating to a sequence of events is being visualised before a general public who may have little or no understanding of the circumstances in which an accident occurred. This paper will introduce and discuss a spectrum of new technologies that utili...

As a starting point for constructing a high-resolution, resliceable computer graphics model for the extraction, quantitative analysis, display, and modeling of neuroanatomical data the outer border and the boundaries of inner divisions and parts of the paraventricular nucleus have been drawn for all 39 serial histological sections prepared for a published reference atlas of the rat brain. This ...

As computer graphics matures, data is becoming a driving force of increased importance in this progress due to its large quantity and disparateness. Visualization, a domain in computer graphics, is specifically centered around the problem of data-dependent understanding and representation. However, since data is always imperfect, additional assumptions and information are required in order to p...

L.E.G.O. is an interactive graphics system for creating, viewing and manipulating two−dimensional geometric figures and three−dimensional objects. The fundamental operations of the L.E.G.O. language form an electronic metaphor of geometric constructions with a straightedge and compass. This is consistent with the primary application of L.E.G.O., i.e. computer−assisted instruction of geometry. L...

The field of three-dimensional computer graphics has long focused on the problem of synthesizing images from geometric models. These geometric models, in combination with surface descriptions characterizing the reflective properties of each element, represent the scene that is to be rendered. Computationally, the classical computer-graphics image synthesis process is a simulation problem in whi...

An explicit procedure to construct a family of martingales generated by a process with independent increments is presented. The main tools are the polynomials that give the relationship between the moments and cumulants, and a set of martingales related to the jumps of the process called Teugels martingales.

Computer graphics is an area where huge progress has been made during the last decades. In this article I will try to give the reader an overview of the different techniques that constitutes the foundation of the broad field of computer graphics. The generic idea when talking about computer graphics is to produce two-dimensional images that can be shown on a computer screen. This can be done in...