Browsing 32-Issue 3 by Title
Now showing items 24-43 of 50
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Nonparametric Models for Uncertainty Visualization
(The Eurographics Association and Blackwell Publishing Ltd., 2013)An uncertain (scalar, vector, tensor) field is usually perceived as a discrete random field with a priori unknown probability distributions. To compute derived probabilities, e.g. for the occurrence of certain features, ... -
Preface and Table of Contents
(The Eurographics Association and Blackwell Publishing Ltd., 2013) -
A Primal/ Dual Representation for Discrete Morse Complexes on Tetrahedral Meshes
(The Eurographics Association and Blackwell Publishing Ltd., 2013)We consider the problem of computing discrete Morse and Morse-Smale complexes on an unstructured tetrahedral mesh discretizing the domain of a 3D scalar field. We use a duality argument to define the cells of the descending ... -
Progressive High-Quality Response Surfaces for Visually Guided Sensitivity Analysis
(The Eurographics Association and Blackwell Publishing Ltd., 2013)In this paper we present a technique which allows us to perform high quality and progressive response surface prediction from multidimensional input samples in an efficient manner. We utilize kriging interpolation to ... -
Rule-based Visual Mappings - with a Case Study on Poetry Visualization
(The Eurographics Association and Blackwell Publishing Ltd., 2013)In this paper, we present a user-centered design study on poetry visualization. We develop a rule-based solution to address the conflicting needs for maintaining the flexibility of visualizing a large set of poetic variables ... -
Scale-Stack Bar Charts
(The Eurographics Association and Blackwell Publishing Ltd., 2013)It is difficult to create appropriate bar charts for data that cover large value ranges. The usual approach for these cases employs a logarithmic scale, which, however, suffers from issues inherent to its non-linear mapping: ... -
Selecting Semantically-Resonant Colors for Data Visualization
(The Eurographics Association and Blackwell Publishing Ltd., 2013)We introduce an algorithm for automatic selection of semantically-resonant colors to represent data (e.g., using blue for data about ''oceans'', or pink for ''love''). Given a set of categorical values and a target color ... -
Small Multiples, Large Singles: A New Approach for Visual Data Exploration
(The Eurographics Association and Blackwell Publishing Ltd., 2013)We present a novel visual exploration method based on small multiples and large singles for effective and efficient data analysis. Users are enabled to explore the state space by offering multiple alternatives from the ... -
Spatially Efficient Design of Annotated Metro Maps
(The Eurographics Association and Blackwell Publishing Ltd., 2013)Annotating metro maps with thumbnail photographs is a commonly used technique for guiding travelers. However, conventional methods usually suffer from small labeling space around the metro stations, especially when they ... -
Streamlines for Illustrative Real-Time Rendering
(The Eurographics Association and Blackwell Publishing Ltd., 2013)Line drawing techniques are important methods to illustrate shapes. Existing feature line methods, e.g., suggestive contours, apparent ridges, or photic extremum lines, solely determine salient regions and illustrate them ... -
Synthetic Brainbows
(The Eurographics Association and Blackwell Publishing Ltd., 2013)Brainbow is a genetic engineering technique that randomly colorizes cells. Biological samples processed with this technique and imaged with confocal microscopy have distinctive colors for individual cells. Complex cellular ... -
TAMRESH - Tensor Approximation Multiresolution Hierarchy for Interactive Volume Visualization
(The Eurographics Association and Blackwell Publishing Ltd., 2013)Interactive visual analysis of large and complex volume datasets is an ongoing and challenging problem. We tackle this challenge in the context of state-of-the-art out-of-core multiresolution volume rendering by introducing ... -
Towards High-dimensional Data Analysis in Air Quality Research
(The Eurographics Association and Blackwell Publishing Ltd., 2013)Analysis of chemical constituents from mass spectrometry of aerosols involves non-negative matrix factorization, an approximation of high-dimensional data in lower-dimensional space. The associated optimization problem is ... -
Towards Multifield Scalar Topology Based on Pareto Optimality
(The Eurographics Association and Blackwell Publishing Ltd., 2013)How can the notion of topological structures for single scalar fields be extended to multifields? In this paper we propose a definition for such structures using the concepts of Pareto optimality and Pareto dominance. Given ... -
TrajectoryLenses - A Set-based Filtering and Exploration Technique for Long-term Trajectory Data
(The Eurographics Association and Blackwell Publishing Ltd., 2013)The visual analysis of spatiotemporal movement is a challenging task. There may be millions of routes of different length and shape with different origin and destination, extending over a long time span. Furthermore there ... -
User-driven Feature Space Transformation
(The Eurographics Association and Blackwell Publishing Ltd., 2013)Interactive visualization systems for exploring and manipulating high-dimensional feature spaces have experienced a substantial progress in the last few years. State-of-art methods rely on solid mathematical and computational ... -
Vector Field k-Means: Clustering Trajectories by Fitting Multiple Vector Fields
(The Eurographics Association and Blackwell Publishing Ltd., 2013)Scientists study trajectory data to understand trends in movement patterns, such as human mobility for traffic analysis and urban planning. In this paper, we introduce a novel trajectory clustering technique whose central ... -
Vessel Visualization using Curvicircular Feature Aggregation
(The Eurographics Association and Blackwell Publishing Ltd., 2013)Radiological investigations are common medical practice for the diagnosis of peripheral vascular diseases. Existing visualization methods such as Curved Planar Reformation (CPR) depict calcifications on vessel walls to ... -
VisRuption: Intuitive and Efficient Visualization of Temporal Airline Disruption Data
(The Eurographics Association and Blackwell Publishing Ltd., 2013)The operation of an airline is a very complex task and disruptions to the planned operation can occur on very short notice. Already a small disruption like a delay of some minutes can cost the airline a tremendous amount ... -
Visual Analysis of Set Relations in a Graph
(The Eurographics Association and Blackwell Publishing Ltd., 2013)Many applications can be modeled as a graph with additional attributes attached to the nodes. For example, a graph can be used to model the relationship of people in a social media website or a bibliographical dataset. ...