Current visualization methods of volume angiograms are limited in their ability to display vessel connectivity and depth information readily available in the data set. In this work, we introduce a hybrid graphic-haptic display technique that allows visualizing vessel connectivity as well as provides user assistance in tracing vessel branches. Most importantly, our display provides three-dimensi...

Displays supporting stereoscopic and head-coupled motion parallax can enhance human perception of containing 3D surfaces and 3D networks but less for so volumetric data. Volumetric data is characterized by a heavy presence of transparency, occlusion and highly ambiguous spatial structure. There are many different rendering and visualization algorithms and interactive techniques that enhance per...

Applications of mesh adaption techniques could be found in the numerical solution of PDE’s or in the optimal triangulation of surfaces for shape representation or graphic display. The scope of this work is to verify through numerical experiments the effectiveness of some algorithms for the control of the L∞ error norm for piece–wise linear approximation on 2D unstructured triangular meshes. The...

Software visualization is the use of filmcraft, cartoon animation, and graphic design techniques to display data structures, programs, and algorithms. It has successfully been used in a number of settings to aid expert and novice programmers debug their programs and to teach computer science students about algorithms. In this paper we describe a framework for using software visualization techno...

Displays and Real Devices In the earlier versions of the program all the development work was done exclusively on a graphic display, and the "pen" was handled as an abstract, dimensionless entity without real-world constraints upon its movements. Conceptually, however, I always thought of the problem of moving the pen from point A facing direction alpha, to point B facing direction beta, as bei...

A-patches[BCX94a] are implicit surfaces in Bernstein-Bezier(BB) form that are smooth and single-sheeted. In this paper, we present algorithms to utilize the extra degrees of freedom of these patches for local shape co·ntrol. A ray shooting scheme is also given to rapidly generate polygonal approximations of A-patches for graphic display. A distributed implementation of this scheme gives near "r...

The LoCoS universal visible language developed by the graphic/sign designer Yukio Ota in Japan in 1964 may serve as a usable, useful, and appealing basis for a mobile phone applications that can provide capabilities for communication among people who do not share a spoken language. Userinterface design issues including display and input are discussed in conjunction with prototype screens showin...