We present a set of interactive, free-form editing operators for direct manipulation of level-set models. The mathematics, algorithms and techniques needed to implement numerous level-set modeling capabilities have been developed. The operators have been combined with an OpenGL interface and the VISPACK level-set library to create a preliminary interactive level-set modeling system. VISPACK’s n...

This paper presents Muse, a visualization of institutional coauthorship of publications. The objective is to create an interactive visualization, which enables users to visually analyze collaboration between institutions based on publications. The easy to use multitouch interaction, and the size of the interactive surface invite users to explore the visualization in semi-public spaces. On the H...

We present a set of interactive, free-form editing operators for direct manipulation of level-set models that supports the creation and removal of surface detail. The mathematics, data structures and algorithms needed to implement numerous level-set modeling capabilities have been developed. The first component of these capabilities identifies the Region-of-Influence (ROI) on the surface to be ...

With significant data missing in a point scan, reconstructing a complete surface with sufficient geometric and topological fidelity is highly challenging. We present an interactive technique for surface reconstruction from incomplete and sparse scans of 3D objects possessing sharp features. A fundamental premise of our interaction paradigm is that directly editing data in 3D is not only counter...

Surface materials play a central role in the way we experience things. This is also the case with interactive artefacts, since the materials that are used for designing a surface or a casing will affect the ways in which the artefact will be physically interacted with and experienced as an object. In this paper we take a closer look at physical surfaces and study the experiential properties of ...

This paper presents a new interactive method for segmentation and visualization of small structures in CT scans. A combination of iso-surface generation, spatial region growing and interactive graphics tools are used to extract small structures interactively. A practical example of segmentation of the dentition in a CT scan is shown.

This paper presents Muse, a visualization of institutional coauthorship of publications. The objective is to create an interactive visualization, which enables users to visually analyze collaboration between institutions based on publications. The easy to use multitouch interaction, and the size of the interactive surface invite users to explore the visualization in semi-public spaces.