Making virtual species less virtual by reverse engineering of spatiotemporal ecological models

Processing Range Data for Reverse Engineering and Virtual Reality

Optical 3-D sensors are used as tools for reverse engineering and virtual reality to digitize the surface of real three-dimensional objects. We discuss an almost fully automatic method to generate a surface description based on a mesh of curved or flat triangles. The method includes mesh reduction, smoothing, and reconstruction of missing data. The generated meshes feature minimum curvature var...

Making Virtual Environments

Visual simulation of Civil Engineering activities: Didactic virtual models

Three-dimensional geometric models have been used to present architectural and engineering works, showing their final configuration. But, when the clarification of a detail or the constitution of a construction step in needed, these models are not appropriate because they do not allow the observation of the construction activity. Models that could present dynamically changes of the building geo...

The use of virtual reality models in civil engineering training

Virtual Reality techniques were used to develop educational didactic models in the area of Civil Engineering. The visualization of the distinct physical steps of a construction is shown in the virtual applications here presented. The developed models bring new perspectives in the teaching activity as a support to expose new curricular programmes or complex sequence construction. In order to obt...

Engineering Virtual Cardiac Tissue

The kinetics of proteins involved in ion transfer, sequestration and binding in cardiac cells can be modelled to construct a model of the electrical activity of isolated cardiac cells as a system of ordinary differential equations. These cell models may be incorporated into tissue models, which, when combined with histology and anatomy, form virtual tissues. The effects of changes in specific p...