Guest Editors' Introduction: Special Section on the IEEE Conference on Visual Analytics Science and Technology (VAST)
Visual Analytics (VA) is an evolving field that, at its core, is directed to the science of analytical reasoning supported by highly interactive visual interfaces. The IEEE Conference on Visual Analytics Science and Technology (IEEE VAST), founded in ...
Scalable Analysis of Movement Data for Extracting and Exploring Significant Places
Place-oriented analysis of movement data, i.e., recorded tracks of moving objects, includes finding places of interest in which certain types of movement events occur repeatedly and investigating the temporal distribution of event occurrences in these ...
The Longitudinal Use of SaNDVis: Visual Social Network Analytics in the Enterprise
As people continue to author and share increasing amounts of information in social media, the opportunity to leverage such information for relationship discovery tasks increases. In this paper, we describe a set of systems that mine, aggregate, and ...
How Visualization Layout Relates to Locus of Control and Other Personality Factors
- Caroline Ziemkiewicz,
- Alvitta Ottley,
- R. Jordan Crouser,
- Ashley Rye Yauilla,
- Sara L. Su,
- William Ribarsky,
- Remco Chang
Existing research suggests that individual personality differences are correlated with a user's speed and accuracy in solving problems with different types of complex visualization systems. We extend this research by isolating factors in personality ...
A Metric for the Evaluation of Dense Vector Field Visualizations
In this work, we present an intuitive image-quality metric that is derived from the motivation of DVF visualization. It utilizes the features of the resulting image and effectively measures the similarity between the output of the visualization method ...
Analytic Double Product Integrals for All-Frequency Relighting
This paper presents a new technique for real-time relighting of static scenes with all-frequency shadows from complex lighting and highly specular reflections from spatially varying BRDFs. The key idea is to depict the boundaries of visible regions ...
Generalized Anisotropic Stratified Surface Sampling
We introduce a novel stratified sampling technique for mesh surfaces that gives the user control over sampling density and anisotropy via a tensor field. Our approach is based on sampling space-filling curves mapped onto mesh segments via ...
Interactive Applications for Sketch-Based Editable Polycube Map
In this paper, we propose a sketch-based editable polycube mapping method that, given a general mesh and a simple polycube that coarsely resembles the shape of the object, plus sketched features indicating relevant correspondences between the two, ...
Pairwise Harmonics for Shape Analysis
This paper introduces a simple yet effective shape analysis mechanism for geometry processing. Unlike traditional shape analysis techniques which compute descriptors per surface point up to certain neighborhoods, we introduce a shape analysis framework ...
Parallel Streamline Placement for 2D Flow Fields
Parallel streamline placement is still an open problem in flow visualization. In this paper, we propose an innovative method to place streamlines in parallel for 2D flow fields. This method is based on our proposed concept of local tracing areas (LTAs). ...
Registration of 3D Point Clouds and Meshes: A Survey from Rigid to Nonrigid
- Gary K. Tam,
- Zhi-Quan Cheng,
- Yu-Kun Lai,
- Frank Langbein,
- Yonghuai Liu,
- A. David Marshall,
- Ralph Martin,
- Xianfang Sun,
- Paul Rosin
Three-dimensional surface registration transforms multiple three-dimensional data sets into the same coordinate system so as to align overlapping components of these sets. Recent surveys have covered different aspects of either rigid or nonrigid ...
Timeline Editing of Objects in Video
We present a video editing technique based on changing the timelines of individual objects in video, which leaves them in their original places but puts them at different times. This allows the production of object-level slow motion effects, fast motion ...
Visualizing Natural Image Statistics
- Hui Fang,
- Gary K. Tam,
- Rita Borgo,
- Andrew Aubrey,
- Philip Grant,
- Paul Rosin,
- Christian Wallraven,
- Douglas Cunningham,
- A. David Marshall,
- Min Chen
Natural image statistics is an important area of research in cognitive sciences and computer vision. Visualization of statistical results can help identify clusters and anomalies as well as analyze deviation, distribution, and correlation. Furthermore, ...
Water Surface Modeling from a Single Viewpoint Video
We introduce a video-based approach for producing water surface models. Recent advances in this field output high-quality results but require dedicated capturing devices and only work in limited conditions. In contrast, our method achieves a good ...