journal
MENU ▼
Read by QxMD icon Read
search

IEEE Transactions on Visualization and Computer Graphics

journal
https://www.readbyqxmd.com/read/28026776/trending-paths-a-new-semantic-level-metric-for-comparing-simulated-and-read-crowd-data
#1
He Wang, Jan Ondrej, Carol O'Sullivan
We propose a new semantic-level crowd evaluation metric in this paper. Crowd simulation has been an active and important area for several decades. However, only recently has there been an increased focus on evaluating the fidelity of the results with respect to real-world situations. The focus to date has been on analyzing the properties of low-level features such as pedestrian trajectories, or global features such as crowd densities. We propose the first approach based on finding semantic information represented by latent Path Patterns in both real and simulated data in order to analyze and compare them...
December 23, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28026775/sounding-solid-combustibles-non-premixed-flame-sound-synthesis-for-different-solid-combustibles
#2
Qiang Yin, Shiguang Liu
With the rapidly growing VR industry, in recent years, more and more attention has been paid for fire sound synthesis. However, previous methods usually ignore the influences of the different solid combustibles, leading to unrealistic sounding results. This paper proposes SSC (sounding solid combustibles), which is a new recording-driven non-premixed flame sound synthesis framework accounting for different solid combustibles. SSC consists of three components: combustion noise, vortex noise and popping sounds...
December 21, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28026774/jackin-head-immersive-visual-telepresence-system-with-omnidirectional-wearable-camera
#3
Shunichi Kasahara, Shohei Nagai, Jun Rekimoto
Sharing one's own immersive experience over the Internet is one of the ultimate goals of telepresence technology. In this paper, we present JackIn Head, a visual telepresence system featuring an omnidirectional wearable camera with image motion stabilization. Spherical omnidirectional video footage taken around the head of a local user is stabilized and then broadcast to others, allowing remote users to explore the immersive visual environment independently of the local user's head direction. We describe the system design of JackIn Head and report the evaluation results of real-time image stabilization and alleviation of cybersickness...
December 21, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28029624/evaluating-cartogram-effectiveness
#4
Sabrina Nusrat, Muhammad Jawaherul Alam, Stephen Kobourov
Cartograms are maps in which areas of geographic regions, such as countries and states, appear in proportion to some variable of interest, such as population or income. Cartograms are popular visualizations for geo-referenced data that have been used for over a century to illustrate patterns and trends in the world around us. Despite the popularity of cartograms, and the large number of cartogram types, there are few studies evaluating the effectiveness of cartograms in conveying information. Based on a recent task taxonomy for cartograms, we evaluate four major types of cartograms: contiguous, non-contiguous, rectangular, and Dorling cartograms...
December 20, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28026773/scalable-visualization-of-time-varying-multi-parameter-distributions-using-spatially-organized-histograms
#5
Tyson Neuroth, Franz Sauer, Weixing Wang, Stephane Ethier, Choong-Seock Chang, Kwan-Liu Ma
Visualizing distributions from data samples as well as spatial and temporal trends of multiple variables is fundamental to analyzing the output of today's scientific simulations. However, traditional visualization techniques are often subject to a trade-off between visual clutter and loss of detail, especially in a large-scale setting. In this work, we extend the use of spatially organized histograms into a sophisticated visualization system that can more effectively study trends between multiple variables throughout a spatial domain...
December 20, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28029623/a-simple-push-pull-algorithm-for-blue-noise-sampling
#6
Abdalla G M Ahmed, Jianwei Guo, Dong-Ming Yan, Jean-Yves Franceschi, Xiaopeng Zhang, Oliver Deussen
We describe a simple push-pull optimization (PPO) algorithm for blue-noise sampling by enforcing spatial constraints on given point sets. Constraints can be a minimum distance between samples, a maximum distance between an arbitrary point and the nearest sample, and a maximum deviation of a sample's capacity (area of Voronoi cell) from the mean capacity. All of these constraints are based on the topology emerging from Delaunay triangulation, and they can be combined for improved sampling quality and efficiency...
December 19, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28026772/real-time-3d-eye-performance-reconstruction-for-rgbd-cameras
#7
Quan Wen, Feng Xu, Jun-Hai Yong
This paper proposes a real-time method for 3D eye performance reconstruction using a single RGBD sensor. Combined with facial surface tracking, our method generates more pleasing facial performance with vivid eye motions. In our method, a novel scheme is proposed to estimate eyeball motions by minimizing the differences between a rendered eyeball and the recorded image. Our method considers and handles different appearances of human irises, lighting variations and highlights on images via the proposed eyeball model and the L0-based optimization...
December 19, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27959814/a-gpu-accelerated-approach-for-feature-tracking-in-time-varying-imagery-datasets
#8
Chao Peng, Saindip Sahani, John Rushing
We propose a novel parallel Connected Component Labeling (CCL) algorithm along with efficient out-of-core data management to detect and track feature regions of large time-varying imagery datasets. Our approach contributes to big data field with parallel algorithms tailored for GPU architectures. We remove the data dependency between frames and achieve pixel-level parallelism. Due to the large size, the entire dataset cannot fit into cached memory. Frames have to be streamed through the memory hierarchy (disk to CPU main memory and then to GPU memory), partitioned and processed as batches, where each batch is small enough to fit into the GPU...
December 9, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27959813/optimal-camera-placement-for-motion-capture-systems
#9
Pooya Rahimian, Joseph Kearney
Optical motion capture is based on estimating the three-dimensional positions of markers by triangulation from multiple cameras. Successful performance depends on points being visible from at least two cameras and on the accuracy of the triangulation. Triangulation accuracy is strongly related to the positions and orientations of the cameras. Thus, the configuration of the camera network has a critical impact on performance. A poor camera configuration may result in a low quality three-dimensional (3D) estimation and consequently low quality of tracking...
December 8, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27959812/a-statistical-direct-volume-rendering-framework-for-visualization-of-uncertain-data
#10
Elham Sakhaee, Alireza Entezari
With uncertainty present in almost all modalities of data acquisition, reduction, transformation, and representation, there is a growing demand for mathematical analysis of uncertainty propagation in data processing pipelines. In this paper, we present a statistical framework for quantification of uncertainty and its propagation in the main stages of the visualization pipeline. We propose a novel generalization of Irwin-Hall distributions from the statistical viewpoint of splines and box-splines, that enables interpolation of random variables...
December 8, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28060707/creative-virtual-tree-modeling-through-hierarchical-topology-preserving-blending
#11
Yutong Wang, Xiaowei Xue, Xiaogang Jin, Zhigang Deng
We present a new method to efficiently generate a set of morphologically diverse and inspiring virtual trees through hierarchical topology-preserving blending, aiming to facilitate designers' creativity production. By maintaining the topological consistency of the tree branches, sequences of similar yet different trees and novel intermediate trees with encouragingly interesting structures are generated by performing inner-species and cross-species blending, respectively. Hierarchical fuzzy correspondences are automatically established between two or multiple trees based on the multi-scale topology tree representations...
December 6, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28026771/prescribed-velocity-gradients-for-highly-viscous-sph-fluids-with-vorticity-diffusion
#12
Andreas Peer, Matthias Teschner
Working with prescribed velocity gradients is a promising approach to efficiently and robustly simulate highly viscous SPH fluids. Such approaches allow to explicitly and independently process shear rate, spin, and expansion rate. This can be used to, e.g., avoid interferences between pressure and viscosity solvers. Another interesting aspect is the possibility to explicitly process the vorticity, e.g. to preserve the vorticity. In this context, this paper proposes a novel variant of the prescribed-gradient idea that handles vorticity in a physically motivated way...
December 6, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28029622/towards-zero-waste-furniture-design
#13
Bongjin Koo, Jean Hergel, Sylvain Lefebvre, Niloy Mitra
In traditional design, shapes are first conceived, and then fabricated. While this decoupling simplifies the design process, it can result in unwanted material wastage, especially where off-cut pieces are hard to reuse. In absence of explicit feedback on material usage, the designer remains helpless to effectively adapt the design - even when design variabilities exist.We investigate waste minimizing furniture design wherein based on the current design, the user is presented with design variations that result in less wastage of materials...
December 1, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27913352/towards-zero-waste-furniture-design
#14
Bongjin Koo, Jean Hergel, Sylvain Lefebvre, Niloy Mitra
In traditional design, shapes are first conceived, and then fabricated. While this decoupling simplifies the design process, it can result in unwanted material wastage, especially where off-cut pieces are hard to reuse. In absence of explicit feedback on material usage, the designer remains helpless to effectively adapt the design - even when design variabilities exist.We investigate waste minimizing furniture design wherein based on the current design, the user is presented with design variations that result in less wastage of materials...
December 1, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27898381/error-bounded-and-feature-preserving-surface-remeshing-with-minimal-angle-improvement
#15
Kaimo Hu, Dong-Ming Yan, David Bommes, Pierre Alliez, Bedrich Benes
The typical goal of surface remeshing consists in finding a mesh that is (1) geometrically faithful to the original geometry, (2) as coarse as possible to obtain a low-complexity representation and (3) free of bad elements that would hamper the desired application. In this paper, we design an algorithm to address all three optimization goals simultaneously. The user specifies desired bounds on approximation error , minimal interior angle and maximum mesh complexity N (number of vertices). Since such a desired mesh might not even exist, our optimization framework treats only the approximation error bound as a hard constraint and the other two criteria as optimization goals...
November 24, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27875226/the-light-field-attachment-turning-a-dslr-into-a-light-field-camera-using-a-low-budget-camera-ring
#16
Yuwang Wang, Yebin Liu, Wolfgang Heidrich, Qionghai Dai
We propose a concept for a lens attachment that turns a standard DSLR camera and lens into a light field camera. The attachment consists of 8 low-resolution, low-quality side cameras arranged around the central high-quality SLR lens. Unlike most existing light field camera architectures, this design provides a high-quality 2D image mode, while simultaneously enabling a new high-quality light field mode with a large camera baseline but little added weight, cost, or bulk compared with the base DSLR camera. From an algorithmic point of view, the high-quality light field mode is made possible by a new light field super-resolution method that first improves the spatial resolution and image quality of the side cameras and then interpolates additional views as needed...
November 15, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27849542/learning-inverse-rig-mappings-by-nonlinear-regression
#17
Daniel Holden, Jun Saito, Taku Komura
We present a framework to design inverse rig-functions - functions that map low level representations of a character's pose such as joint positions or surface geometry to the representation used by animators called the animation rig. Animators design scenes using an animation rig, a framework widely adopted in animation production which allows animators to design character poses and geometry via intuitive parameters and interfaces. Yet most state-of-the-art computer animation techniques control characters through raw, low level representations such as joint angles, joint positions, or vertex coordinates...
November 11, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27845662/detecting-when-an-implicit-equation-or-a-rational-parametrization-defines-a-conical-or-cylindrical-surface-or-a-surface-of-revolution
#18
Juan Gerardo Alcazar, Ron Goldman
Given an implicit polynomial equation or a rational parametrization, we develop algorithms to determine whether the set of real and complex points defined by the equation, i.e. the surface defined by the equation, in the sense of Algebraic Geometry, is a cylindrical surface, a conical surface, or a surface of revolution. The algorithms are directly applicable to, and formulated in terms of, the implicit equation or the rational parametrization. When the surface is cylindrical, we show how to compute the direction of its rulings; when the surface is conical, we show how to compute its vertex; and when the surface is a surface of revolution, we show how to compute its axis of rotation directly from the defining equations...
November 7, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27831883/surface-approximation-via-asymptotic-optimal-geometric-partition
#19
Yiqi Cai, Xiaohu Guo, Yang Liu, Wenping Wang, Weihua Mao, Zichun Zhong
In this paper, we present a novel method on surface partition from the perspective of approximation theory. Different from previous shape proxies, the ellipsoidal variance proxy is proposed to penalize the partition results falling into disconnected parts. On its support, the Principle Component Analysis (PCA) based energy is developed for asymptotic cluster aspect ratio and size control. We provide the theoretical explanation on how the minimization of the PCA-based energy leads to the optimal asymptotic behavior for approximation...
November 1, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27831882/data-driven-npr-illustrations-of-natural-flows-in-chinese-painting
#20
Yu-Chi Lai, Bo-An Chen, Kuo-Wei Chen, Wei-Lin Si, Chih-Yuan Yao, Eugene Zhang
Introducing motion into existing static paintings is becoming a field that is gaining momentum. This effort facilitates keeping artworks current and translating them to different forms for diverse audiences. Chinese ink paintings and Japanese Sumies are well recognized in Western cultures, yet not easily practiced due to the years of training required. We are motivated to develop an interactive system for artists, non-artists, Asians, and non-Asians to enjoy the unique style of Chinese paintings. In this paper, our focus is on replacing static water flow scenes with animations...
October 31, 2016: IEEE Transactions on Visualization and Computer Graphics
journal
journal
34413
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"