One of the key principles of Empirical Modelling is observation. The interface to a model is critical to a user’s experience. This paper describes the various notations for describing graphics using Empirical Modelling techniques, including notations for specifying complex geometry as the application of functions on primitive objects. The Sasami 3D visualisation notation is discussed and an imp...

This research examines the validity of utilising a 2D multiplane FDTD acoustic model to simulate low frequency sound propagation as part of a hybrid room impulse response (RIR) synthesis system. Analytic results, pertaining to the comparison of simulated low frequency multiplane RIRs with both practical RIR measurements and 3D FDTD simulated RIRs, demonstrate that a good level of accuracy is at...

This paper presents a comparison between a 3D and a 4D ontology, with the purpose of identifying modelling variations that arise from using these different kind of ontologies. The modelling variations are illustrated by using 2 enterprise modelling enigmas on which both ontologies are applied. The goal of our comparison is to demonstrate that the choice of an ontology impacts the representation...

Visualising 3D models of buildings is essential in assisting clients’ decisionmaking process to accept or change design parameters/criteria. However, to achieve effectiveness, 3D virtual representations of built spaces must be perceived as identical to their physical counterpart to be built/refurbished, which is the current assumption by architects and engineers creating 3D space-models and dis...

Impact modelling for shot peening or peen forming has progressed from simulating a single impact (or local multiple impacts) to simulating a large number of multiple impacts. It is the aim of this paper to provide quantitative results with a detailed finite element study, and to compare the effects of a single impact and global multiple impacts. Using a two-dimensional (2D) axisymmetric single ...

The objective of this study was to develop and validate a subject-specific framework for modelling the human foot. This was achieved by integrating medical image-based finite element modelling, individualised multi-body musculoskeletal modelling and 3D gait measurements. A 3D ankle-foot finite element model comprising all major foot structures was constructed based on MRI of one individual. A m...

Most 3D geological modelling tools were designed for the needs of the oil industry and are not suited to the variety of situations encountered in other application domains. Moreover, the usual modelling tools are not able to quantify the uncertainty of the geometric models generated. The potential-field method was designed to build 3D geological models from data available in geology and mineral...

3-dimensional object modelling of real world objects in steady state by means of multiple point cloud (pcl) depth scans taken by using sensing camera and application of smoothing algorithm are suggested in this study. Polygon structure, which is constituted by coordinates of point cloud (x,y,z) corresponding to the position of 3D model in space and obtained by nodal points and connection of the...

This paper describes a part of the Yacht Captain Training system, particularly the part that includes ships and scenes modelling. It is divided into two parts. The first deals with problems of practical usage of VRML standard for basic 3D modelling, while the second inquires the possibilities to make virtual sailing more realistic.