Showing papers in "Computers & Graphics in 2006"

TL;DR: The objective is to enhance texture quality as much as possible with a minor sacrifice in efficiency in order to support the conjecture that the pixel-based approach would yield high quality images.

TL;DR: Education uses of virtual learning environment concerned with issues of learning, training and entertainment show that VLE can be means of enhancing, motivating and stimulating learners' understanding of certain events, especially those for which the traditional notion of instructional learning have proven inappropriate or difficult.

TL;DR: The paper’s primary aim is to survey the development of the marching cubes algorithm and its computational properties, extensions, and limitations (including the attempts to resolve its limitations).

TL;DR: A composite model to realistically simulate a catheter, a guidewire or a combination of both is proposed and shows that the composite model exhibits the same characteristics of aCatheter/guidewire combination while maintaining real-time interaction.

TL;DR: This article presents a set of theoretical reflections and technical demonstrations that constitute a new methodological base for the architectural surveying and representation using computer graphics techniques that integrates the concept of architectural feature-based modeling.

TL;DR: In this paper, a new dynamic and efficient bounding volume hierarchy for breakable objects undergoing structured and/or unstructured motion is proposed, which leads to significant advantages in terms of execution speed.

TL;DR: This paper extends the previous algorithm to deal with very noisy curves and to propose a decomposition somewhat preserving the intuitive notion of corners.

TL;DR: This paper presents a multigrid framework for constructing implicit, yet interactive solvers for the governing equations of motion of deformable volumetric bodies and has integrated linearized, corotational linearized and non-linear Green strain into this framework.

TL;DR: A complete cleaning toolbox is proposed to remove degenerated and badly oriented triangles resulting from the scanning process and a set of geometric constraints can be added to further shape the inserted mesh.

TL;DR: VEXBOT as discussed by the authors uses a game-tree search algorithm to compute the expected value of each betting option, and does real-time opponent modeling to improve its evaluation function estimates.

TL;DR: The paper presents two applications of haptic technologies to demonstrate how they can increase human computer interaction during different steps of design process and describes their architecture and the methodologies proposed to simulate material shaping and ergonomic validation.

TL;DR: A realistic real-time rain rendering method using programmable graphics hardware to simulate the refraction of the scene inside a raindrop, and takes into account retinal persistence, and interaction with light sources.

TL;DR: A novel method is proposed that reduces the computational complexity and realizes an animation in real-time, by means of a boundary condition map expressing space distribution of resistances from tree models automatically.

TL;DR: An infrastructure developed as part of the e-Campus project is presented that is designed to support the coordinated scheduling of rich media content on networks of situated public displays and provides flexible support for the construction of domain-specific scheduling approaches on top of a common, domain-independent API.

TL;DR: A framework for the automatic extraction and annotation of anthropometric features from human body models based on a structural model of the body built upon a multi-scale segmentation into main bodies and limb features is introduced.

TL;DR: Based on some recent techniques for parameterizing higher genus meshes, when some mild conditions on the sampling density are satisfied, the algorithm generates a closed toroidal manifold which interpolates the input and is geometrically similar to the sampled surface.

TL;DR: The methodology is fully exploited through two case studies: the choice of the optimal design for a traditional Neapolitan coffee maker, addressed by the Italian designer Riccardo Dalisi, and for a subassembly of a new minicar.

TL;DR: An accurate expression of the index of refraction in the atmosphere as a function of wavelength is developed, based on real measured data, which lets us mimic the initial conditions of real-world scenes for the authors' simulations.

TL;DR: This DTD based verification technique can avoid the disadvantage of the grammar system and can ensure the coherent architecture styles of ancient vernacular houses and it has been applied to preserve the digital heritage of southeast China vernatural architecture.

TL;DR: The bio-edutainment system developed consists of mainly three components of visualization, modeling and interaction, which includes also GPU technology, Networking, sensor technology and so on.

TL;DR: The principles of the SoDA simulator, a 3D cellular automata approach using the knowledge accumulated by soil scientists about the physical processes involved in erosion, and its first implementation are presented are presented.

TL;DR: Two new schemes for digital steganography of point-sampled geometry in the spatial domain are presented, to the best of the knowledge, the first in the literature for such types of geometry.

TL;DR: A novel approach for the generation of realistic speech synchronized 3D facial animation that copes with anticipatory and perseveratory coarticulation and is being used to generate 3D speech synchronized animation from both natural and synthetic speech generated by a text-to-speech synthesizer.

TL;DR: An approach to performing time-critical collision detection for deformable objects using a sphere tree constructed using an adaptive medial-axis approximation of the dense mesh, thus balancing computational accuracy and speed.

TL;DR: A method to simulate the melting and flowing phenomena with different materials in multiple phases, based on a modified lattice Boltzmann method, which means interactive speed is achieved by hardware acceleration on the contemporary graphics hardware (GPU).

TL;DR: This paper introduces a new curvature-based shape descriptor and shows its applicability to manufacturing process discrimination using a publicly available set of artifacts from the National Design Repository, and believes it can be the basis for practical new techniques for manufacturing cost estimation, engineering analysis and design archival.

TL;DR: In this article, a combination of a patterns-based modelling language using compound UI components and mapping rules as building blocks, and a generic adaptive architecture based on components with ports and utility functions for finding the optimal configuration in a given situation facilitates implementation of applications with adaptive UIs.

TL;DR: This paper presents an on-the-fly approach to the tracking of branching and crossing fibers by dynamically setting secondary seeds in regions where branching is assumed, thus avoiding computationally intensive preprocessing steps and proposes an uncertainty mapping technique that uses color-coding to enrich 3D fiber displays with information on their validity.

TL;DR: This paper presents a physically based approach to the large deformation effects and fast performance on complex large scale objects under interactive user manipulations using the linear elasticity model and a finite elements method.

TL;DR: This paper shows how the model-based user interface development methodology can be applied for ambient intelligent environments and proposes a task-centered approach towards the design of interactive systems by means of appropriate visualizations and simulations of different models.