A Survey of Cardiac 4D PC-MRI Data Processing
Cardiac four-dimensional phase-contrast magnetic resonance imaging 4D PC-MRI acquisitions have gained increasing clinical interest in recent years. They allow to non-invasively obtain extensive information about patient-specific hemodynamics, and thus ...
A Descriptive Framework for Temporal Data Visualizations Based on Generalized Space-Time Cubes
We present the generalized space-time cube, a descriptive model for visualizations of temporal data. Visualizations are described as operations on the cube, which transform the cube's 3D shape into readable 2D visualizations. Operations include ...
Constrained Modelling of 3-Valent Meshes Using a Hyperbolic Deformation Metric
Polygon meshes with 3-valent vertices often occur as the frame of free-form surfaces in architecture, in which rigid beams are connected in rigid joints. For modelling such meshes, it is desirable to measure the deformation of the joints' shapes. We ...
Quantizing Intersections Using Compact Voxels
Efficient intersection queries are important for ray tracing. However, building and maintaining the acceleration structures is demanding, especially for fully dynamic scenes. In this paper, we propose a quantized intersection framework based on compact ...
Motion Style Retargeting to Characters With Different Morphologies
We present a novel approach for style retargeting to non-humanoid characters by allowing extracted stylistic features from one character to be added to the motion of another character with a different body morphology. We introduce the concept of groups ...
Inverse Modelling of Incompressible Gas Flow in Subspace
This paper advocates a novel method for modelling physically realistic flow from captured incompressible gas sequence via modal analysis in frequency-constrained subspace. Our analytical tool is uniquely founded upon empirical mode decomposition EMD and ...
A Colour Interpolation Scheme for Topologically Unrestricted Gradient Meshes
Gradient meshes are a 2D vector graphics primitive where colour is interpolated between mesh vertices. The current implementations of gradient meshes are restricted to rectangular mesh topology. Our new interpolation method relaxes this restriction by ...
Muscle-Based Control for Character Animation
Muscle-based control is transforming the field of physics-based character animation through the integration of knowledge from neuroscience, biomechanics and robotics, which enhance motion realism. Since any physics-based animation system can be extended ...
A Visualization-Based Analysis System for Urban Search & Rescue Mission Planning Support
We propose a visualization system for incident commanders ICs in urban searchï źandï źrescue scenarios that supports path planning in post-disaster structures. Utilizing point cloud data acquired from unmanned robots, we provide methods for the ...
Interactive Analysis of Connolly Surfaces for Various Probes
The Connolly surface defines the boundary between a molecular structure and its environment. Its shape depends on the radius of the probe used to inspect the structure. The exploration of surface features is of great interest among chemists because it ...
Interactive Lenses for Visualization: An Extended Survey
The elegance of using virtual interactive lenses to provide alternative visual representations for selected regions of interest is highly valued, especially in the realm of visualization. Today, more than 50 lens techniques are known in the closer ...
Visualizing Group Structures in Graphs: A Survey
Graph visualizations encode relationships between objects. Abstracting the objects into group structures provides an overview of the data. Groups can be disjoint or overlapping, and might be organized hierarchically. However, the underlying graph still ...
Visual Text Analysis in Digital Humanities
In 2005, Franco Moretti introduced Distant Reading to analyse entire literary text collections. This was a rather revolutionary idea compared to the traditional Close Reading, which focuses on the thorough interpretation of an individual work. Both ...
Intrinsic Image Decomposition Using Multi-Scale Measurements and Sparsity
Automatic decomposition of intrinsic images, especially for complex real-world images, is a challenging under-constrained problem. Thus, we propose a new algorithm that generates and combines multi-scale properties of chromaticity differences and ...
Structure-Texture Decomposition of Images with Interval Gradient
This paper presents a novel filtering-based method for decomposing an image into structures and textures. Unlike previous filtering algorithms, our method adaptively smooths image gradients to filter out textures from images. A new gradient operator, ...
Scalable Feature-Preserving Irregular Mesh Coding
This paper presents a novel wavelet-based transform and coding scheme for irregular meshes. The transform preserves geometric features at lower resolutions by adaptive vertex sampling and retriangulation, resulting in more accurate subsampling and ...
Reevaluating Reconstruction Filters for Path-Searching Tasks in 3D
In this paper, we present an experiment on stereoscopic direct volume rendering, aiming at understanding the relationship between the choice of reconstruction filter and participant performance on tasks requiring spatial understanding such as 3D path-...
A Phase-Based Approach for Animating Images Using Video Examples
We present a novel approach for animating static images that contain objects that move in a subtle, stochastic fashion e.g. rippling water, swaying trees, or flickering candles. To do this, our algorithm leverages example videos of similar objects, ...
Adaptive Physically Based Models in Computer Graphics
One of the major challenges in physically based modelling is making simulations efficient. Adaptive models provide an essential solution to these efficiency goals. These models are able to self-adapt in space and time, attempting to provide the best ...
Spectral Processing of Tangential Vector Fields
We propose a framework for the spectral processing of tangential vector fields on surfaces. The basis is a Fourier-type representation of tangential vector fields that associates frequencies with tangential vector fields. To implement the representation ...
Time-Continuous Quasi-Monte Carlo Ray Tracing
Domain-continuous visibility determination algorithms have proved to be very efficient at reducing noise otherwise prevalent in stochastic sampling. Even though they come with an increased overhead in terms of geometrical tests and visibility ...
Stress-Constrained Thickness Optimization for Shell Object Fabrication
We present an approach to fabricate shell objects with thickness parameters, which are computed to maintain the user-specified structural stability. Given a boundary surface and user-specified external forces, we optimize the thickness parameters ...
Dynamically Enriched MPM for Invertible Elasticity
We extend the material point method MPM for robust simulation of extremely large elastic deformation. This facilitates the application of MPM towards a unified solver since its versatility has been demonstrated lately with simulation of varied ...
Visual Quantification of the Circle of Willis: An Automated Identification and Standardized Representation
This paper presents a method for the visual quantification of cerebral arteries, known as the Circle of Willis CoW. It is an arterial structure with the responsibility of supplying the brain with blood, however, dysfunctions can lead to strokes. The ...
4D Reconstruction of Blooming Flowers
Flower blooming is a beautiful phenomenon in nature as flowers open in an intricate and complex manner whereas petals bend, stretch and twist under various deformations. Flower petals are typically thin structures arranged in tight configurations with ...