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Displaying 1-50 out of 58 total
Content-preserving warps for 3D video stabilization
Found in: ACM Transactions on Graphics (TOG)
By Aseem Agarwala, Feng Liu, Hailin Jin, Michael Gleicher, Aseem Agarwala, Feng Liu, Hailin Jin, Michael Gleicher, Aseem Agarwala, Feng Liu, Hailin Jin, Michael Gleicher, Aseem Agarwala, Feng Liu, Hailin Jin, Michael Gleicher
Issue Date:July 2009
pp. 1-2
We describe a technique that transforms a video from a hand-held video camera so that it appears as if it were taken with a directed camera motion. Our method adjusts the video to appear as if it were taken from nearby viewpoints, allowing 3D camera moveme...
     
Perception of Average Value in Multiclass Scatterplots
Found in: IEEE Transactions on Visualization and Computer Graphics
By Michael Gleicher,Michael Correll,Christine Nothelfer,Steven Franconeri
Issue Date:December 2013
pp. 2316-2325
The visual system can make highly efficient aggregate judgements about a set of objects, with speed roughly independent of the number of objects considered. While there is a rich literature on these mechanisms and their ramifications for visual summarizati...
 
Error Bars Considered Harmful: Exploring Alternate Encodings for Mean and Error
Found in: IEEE Transactions on Visualization and Computer Graphics
By Michael Correll,Michael Gleicher
Issue Date:February 2015
pp. 1
When making an inference or comparison with uncertain, noisy, or incomplete data, measurement error and confidence intervals can be as important for judgment as the actual mean values of different groups. These often misunderstood statistical quantities ar...
 
Evaluating Video-Based Motion Capture
Found in: Computer Animation
By Michael Gleicher, Nicola Ferrier
Issue Date:June 2002
pp. 75
Motion capture can be an effective method of creating realistic human motion for animation. Unfortunately, the quality demands for animation place challenging demands on a capture system. To date, capture solutions that meet these demands have required spe...
 
Perception of Average Value in Multiclass Scatterplots
Found in: IEEE Transactions on Visualization and Computer Graphics
By Michael Gleicher,Michael Correll,Christine Nothelfer,Steven Franconeri
Issue Date:December 2013
pp. 2316-2325
The visual system can make highly efficient aggregate judgements about a set of objects, with speed roughly independent of the number of objects considered. While there is a rich literature on these mechanisms and their ramifications for visual summarizati...
 
Explainers: Expert Explorations with Crafted Projections
Found in: IEEE Transactions on Visualization and Computer Graphics
By Michael Gleicher
Issue Date:December 2013
pp. 2042-2051
This paper introduces an approach to exploration and discovery in high-dimensional data that incorporates a user's knowledge and questions to craft sets of projection functions meaningful to them. Unlike most prior work that defines projections based on th...
 
Sequence Surveyor: Leveraging Overview for Scalable Genomic Alignment Visualization
Found in: IEEE Transactions on Visualization and Computer Graphics
By Danielle Albers,Colin Dewey,Michael Gleicher
Issue Date:December 2011
pp. 2392-2401
In this paper, we introduce overview visualization tools for large-scale multiple genome alignment data. Genome alignment visualization and, more generally, sequence alignment visualization are an important tool for understanding genomic sequence data. As ...
 
Automated Illustration of Molecular Flexibility
Found in: IEEE Transactions on Visualization and Computer Graphics
By Aaron Bryden,George N. Phillips Jr.,Michael Gleicher
Issue Date:January 2012
pp. 132-145
In this paper, we present an approach to creating illustrations of molecular flexibility using normal mode analysis (NMA). The output of NMA is a collection of points corresponding to the locations of atoms and associated motion vectors, where a vector for...
 
Warp propagation for video resizing
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Yuzhen Niu, Feng Liu, Xueqing Li, Michael Gleicher
Issue Date:June 2010
pp. 537-544
This paper presents a video resizing approach that provides both efficiency and temporal coherence. Prior approaches either sacrifice temporal coherence (resulting in jitter), or require expensive spatio-temporal optimization. By assessing the requirements...
 
Multi-Scale Surface Descriptors
Found in: IEEE Transactions on Visualization and Computer Graphics
By Gregory Cipriano, George N. Phillips Jr., Michael Gleicher
Issue Date:November 2009
pp. 1201-1208
Local shape descriptors compactly characterize regions of a surface, and have been applied to tasks in visualization, shape matching, and analysis. Classically, curvature has be used as a shape descriptor; however, this differential property characterizes ...
 
Text Scaffolds for Effective Surface Labeling
Found in: IEEE Transactions on Visualization and Computer Graphics
By Gregory Cipriano, Michael Gleicher
Issue Date:November 2008
pp. 1675-1682
In this paper we introduce a technique for applying textual labels to 3D surfaces. An effective labeling must balance the conflicting goals of conveying the shape of the surface while being legible from a range of viewing directions. Shape can be conveyed ...
 
Molecular Surface Abstraction
Found in: IEEE Transactions on Visualization and Computer Graphics
By Gregory Cipriano, Michael Gleicher
Issue Date:November 2007
pp. 1608-1615
In this paper we introduce a visualization technique that provides an abstracted view of the shape and spatio-physico-chemical properties of complex molecules. Unlike existing molecular viewing methods, our approach suppresses small details to facilitate r...
 
Glyph-based Overviews of Large Datasets in Structural Bioinformatics
Found in: Information Visualisation, International Conference on
By Aneesh Karve, Michael Gleicher
Issue Date:July 2007
pp. 1-6
The exponential growth of structural bioinformatics data implies a need for visualization tools that provide informative overviews of large datasets. Nevertheless, online query interfaces and domain-specific visualization tools have neglected to provide su...
 
Region Enhanced Scale-Invariant Saliency Detection
Found in: Multimedia and Expo, IEEE International Conference on
By Feng Liu, Michael Gleicher
Issue Date:July 2006
pp. 1477-1480
Saliency measures the low-level stimuli to human vision, and serves as an alternative to semantic image understanding. This paper presents a region enhanced scale-invariant saliency detection method. Our method constructs a scale-invariant saliency map fro...
 
Capillary Histology Imagery Visualization and Exploration
Found in: Visualization Conference, IEEE
By Michael Gleicher, Tom Brunet, Evan Nowak, Liz Osten, Matt McElwee, Kevin Tanty, Adam Gepner, Garet Lahvis
Issue Date:October 2004
pp. 30p
No summary available.
   
Explainers: Expert Explorations with Crafted Projections
Found in: IEEE Transactions on Visualization and Computer Graphics
By Michael Gleicher
Issue Date:December 2013
pp. 2042-2051
This paper introduces an approach to exploration and discovery in high-dimensional data that incorporates a user's knowledge and questions to craft sets of projection functions meaningful to them. Unlike most prior work that defines projections based on th...
 
Quantity estimation in visualizations of tagged text
Found in: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '13)
By Eric C. Alexander, Michael A. Correll, Michael Gleicher
Issue Date:April 2013
pp. 2697-2706
A valuable task in text visualization is to have viewers make judgments about text that has been annotated (either by hand or by some algorithm such as text clustering or entity extraction). In this work we look at the ability of viewers to make judgments ...
     
Virtual videography
Found in: ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
By Michael Gleicher, Michael Wallick, Rachel Heck
Issue Date:February 2007
pp. 4-es
Well-produced videos provide a convenient and effective way to archive lectures. In this article, we offer a new way to create lecture videos that retains many of the advantages of well-composed recordings, without the cost and intrusion of a video product...
     
Virtual videography
Found in: Proceedings of the 14th annual ACM international conference on Multimedia (MULTIMEDIA '06)
By Michael Gleicher, Michael Wallick, Rachel Heck
Issue Date:October 2006
pp. 961-962
Well-produced videos provide a convenient and effective way to archive lectures. In this demonstration, we present a new way to create lecture videos that possess many of the advantages of well-composed recordings without the cost and intrusion of a video ...
     
Physical Touch-Up of Human Motions
Found in: Computer Graphics and Applications, Pacific Conference on
By Hyun Joon Shin, Lucas Kovar, Michael Gleicher
Issue Date:October 2003
pp. 194
Many popular motion editing methods do not take physical principles into account potentially implausible motions. This paper introduces an efficient method for touching up edited motions to improve physical plausibility. We start by estimating a mass distr...
 
Symposium on computer animation in fast forward
Found in: ACM SIGGRAPH 2002 conference abstracts and applications (SIGGRAPH '02)
By Jessica Hodgins, Michael Cohen, Michael Gleicher, Michiel van de Panne, Nancy Pollard
Issue Date:July 2002
pp. 95-95
"Three-minute madness." Papers from the new ACM SIGGRAPH Symposium on Computer Animation are summarized in three minutes or less, followed by a discussion of new directions in computer animation research.
     
Conversational gaze aversion for humanlike robots
Found in: Proceedings of the 2014 ACM/IEEE international conference on Human-robot interaction (HRI '14)
By Bilge Mutlu, Michael Gleicher, Sean Andrist, Xiang Zhi Tan
Issue Date:March 2014
pp. 25-32
Gaze aversion-the intentional redirection away from the face of an interlocutor-is an important nonverbal cue that serves a number of conversational functions, including signaling cognitive effort, regulating a conversation's intimacy level, and managing t...
     
Online real-time presentation of virtual experiences forexternal viewers
Found in: Proceedings of the 18th ACM symposium on Virtual reality software and technology (VRST '12)
By Hyun Joon Shin, Joe Kohlmann, Kevin Ponto, Michael Gleicher
Issue Date:December 2012
pp. 45-52
Externally observing the experience of a participant in a virtual environment is generally accomplished by viewing an egocentric perspective. Monitoring this view can often be difficult for others to watch due to unwanted camera motions that appear unnatur...
     
Why ask why?: considering motivation in visualization evaluation
Found in: Proceedings of the 2012 BELIV Workshop: Beyond Time and Errors - Novel Evaluation Methods for Visualization (BELIV '12)
By Michael Gleicher
Issue Date:October 2012
pp. 1-3
My position is that improving evaluation for visualization requires more than developing more sophisticated evaluation methods. It also requires improving the efficacy of evaluations, which involves issues such as how evaluations are applied, reported, and...
     
A head-eye coordination model for animating gaze shifts of virtual characters
Found in: Proceedings of the 4th Workshop on Eye Gaze in Intelligent Human Machine Interaction (Gaze-In '12)
By Bilge Mutlu, Michael Gleicher, Sean Andrist, Tomislav Pejsa
Issue Date:October 2012
pp. 1-6
We present a parametric, computational model of head-eye coordination that can be used in the animation of directed gaze shifts for virtual characters. The model is based on research in human neurophysiology. It incorporates control parameters that allow f...
     
Subspace video stabilization
Found in: ACM Transactions on Graphics (TOG)
By Aseem Agarwala, Feng Liu, Hailin Jin, Jue Wang, Michael Gleicher
Issue Date:January 2011
pp. 1-10
We present a robust and efficient approach to video stabilization that achieves high-quality camera motion for a wide range of videos. In this article, we focus on the problem of transforming a set of input 2D motion trajectories so that they are both smoo...
     
Perceptual principles for scalable sequence alignment visualization
Found in: Proceedings of the 7th Symposium on Applied Perception in Graphics and Visualization (APGV '10)
By Danielle Albers, Michael Gleicher
Issue Date:July 2010
pp. 164-164
Sequence comparison is a fundamental task in the biological sciences. Scientists often need to understand the similarities and differences between genetic sequences to understand evolution, to infer common function, or identify differences. Because the seq...
     
Detection of image stretching
Found in: Proceedings of the 7th Symposium on Applied Perception in Graphics and Visualization (APGV '10)
By Feng Liu, Huiyun Bao, Michael Gleicher, Xueqing Li, Yuzhen Niu
Issue Date:July 2010
pp. 93-100
Resizing images for different devices often involves changing the aspect ratio. A wide variety of approaches for resizing exist: sophisticated "content-aware" (or retargeting) approaches are built on the assumption that carefully chosen distortions are pre...
     
The complexity of perception of image distortion: an initial study
Found in: Proceedings of the 28th of the international conference extended abstracts on Human factors in computing systems (CHI EA '10)
By Feng Liu, Michael Gleicher, Xueqing Li, Yuzhen Niu
Issue Date:April 2010
pp. 3235-3240
Image retargeting methods adapt an image for displays with different sizes and aspect ratios. Methods are based on the assumption that some kinds of distortions are preferable to others. While a rich variety of literature exists on retargeting methods, the...
     
Content-preserving warps for 3D video stabilization
Found in: ACM SIGGRAPH 2009 papers (SIGGRAPH '09)
By Aseem Agarwala, Feng Liu, Hailin Jin, Michael Gleicher
Issue Date:August 2009
pp. 3-3
We describe a technique that transforms a video from a hand-held video camera so that it appears as if it were taken with a directed camera motion. Our method adjusts the video to appear as if it were taken from nearby viewpoints, allowing 3D camera moveme...
     
Noisy video super-resolution
Found in: Proceeding of the 16th ACM international conference on Multimedia (MM '08)
By Feng Liu, Jinjun Wang, Michael Gleicher, Shenghuo Zhu, Yihong Gong
Issue Date:October 2008
pp. 40-42
Low-quality videos often not only have limited resolution, but also suffer from noise. Directly up-sampling a video without considering noise could deteriorate its visual quality due to magnifying noise. This paper addresses this problem with a unified fra...
     
Snap-together motion: assembling run-time animations
Found in: ACM SIGGRAPH 2008 classes (SIGGRAPH '08)
By Andrew Jepsen, Hyun Joon Shin, Lucas Kovar, Michael Gleicher
Issue Date:August 2008
pp. 110-110
Many virtual environments and games must be populated with synthetic characters to create the desired experience. These characters must move with sufficient realism, so as not to destroy the visual quality of the experience, yet be responsive, controllable...
     
Motion graphs
Found in: ACM SIGGRAPH 2008 classes (SIGGRAPH '08)
By Frederic Pighin, Lucas Kovar, Michael Gleicher
Issue Date:August 2008
pp. 110-110
In this paper we present a novel method for creating realistic, controllable motion. Given a corpus of motion capture data, we automatically construct a directed graph called a motion graph that encapsulates connections among the database. The motion graph...
     
Autonomous navigation for a virtual human - part I
Found in: ACM SIGGRAPH 2008 classes (SIGGRAPH '08)
By Michael Gleicher
Issue Date:August 2008
pp. 110-110
An enormous amount of Motion Planning techniques has been developed in the past decade specifically targeting applications in Computer Animation. Going beyond the traditional path planning for navigation, recent techniques address challenging problems in c...
     
Parametric motion graphs
Found in: Proceedings of the 2007 symposium on Interactive 3D graphics and games (SI3D '07)
By Michael Gleicher, Rachel Heck
Issue Date:April 2007
pp. 129-136
In this paper, we present an example-based motion synthesis technique that generates continuous streams of high-fidelity, controllable motion for interactive applications, such as video games. Our method uses a new data structure called a parametric motion...
     
Video retargeting: automating pan and scan
Found in: Proceedings of the 14th annual ACM international conference on Multimedia (MULTIMEDIA '06)
By Feng Liu, Michael Gleicher
Issue Date:October 2006
pp. 241-250
When a video is displayed on a smaller display than originally intended, some of the information in the video is necessarily lost. In this paper, we introduce Video Retargeting that adapts video to better suit the target display, minimizing the important i...
     
Automatic image retargeting
Found in: Proceedings of the 4th international conference on Mobile and ubiquitous multimedia (MUM '05)
By Bruce Gooch, Michael Gleicher, Ramesh Raskar, Saeko Takagi, Vidya Setlur
Issue Date:December 2005
pp. 59-68
We present a non-photorealistic algorithm for retargeting large images to small size displays, particularly on mobile devices. This method adapts large images so that important objects in the image are still recognizable when displayed at a lower target re...
     
Automated extraction and parameterization of motions in large data sets
Found in: ACM Transactions on Graphics (TOG)
By Lucas Kovar, Michael Gleicher
Issue Date:August 2004
pp. 559-568
Large motion data sets often contain many variants of the same kind of motion, but without appropriate tools it is difficult to fully exploit this fact. This paper provides automated methods for identifying logically similar motions in a data set and using...
     
Snap-together motion: assembling run-time animations
Found in: ACM SIGGRAPH 2003 Papers (SIGGRAPH '03)
By Andrew Jepsen, Hyun Joon Shin, Lucas Kovar, Michael Gleicher
Issue Date:July 2003
pp. 56-ff
The Actuated Workbench is a device that uses magnetic forces to move objects on a table in two dimensions. It is intended for use with existing tabletop tangible interfaces, providing an additional feedback loop for computer output, and helping to resolve ...
     
Building efficient, accurate character skins from examples
Found in: ACM SIGGRAPH 2003 Papers (SIGGRAPH '03)
By Alex Mohr, Michael Gleicher
Issue Date:July 2003
pp. 56-ff
Good character animation requires convincing skin deformations including subtleties and details like muscle bulges. Such effects are typically created in commercial animation packages which provide very general and powerful tools. While these systems are c...
     
Snap-together motion: assembling run-time animations
Found in: Proceedings of the 2003 symposium on Interactive 3D graphics (SI3D '03)
By Andrew Jepsen, Hyun Joon Shin, Lucas Kovar, Michael Gleicher
Issue Date:April 2003
pp. 181-188
Many virtual environments and games must be populated with synthetic characters to create the desired experience. These characters must move with sufficient realism, so as not to destroy the visual quality of the experience, yet be responsive, controllable...
     
Direct manipulation of interactive character skins
Found in: Proceedings of the 2003 symposium on Interactive 3D graphics (SI3D '03)
By Alex Mohr, Luke Tokheim, Michael Gleicher
Issue Date:April 2003
pp. 27-30
Geometry deformations for interactive animated characters are most commonly achieved using a skeleton-driven deformation technique called linear blend skinning. To deform a vertex, linear blend skinning computes a weighted average of that vertex rigidly tr...
     
Footskate cleanup for motion capture editing
Found in: Proceedings of the 2002 ACM SIGGRAPH/Eurographics symposium on Computer animation (SCA '02)
By John Schreiner, Lucas Kovar, Michael Gleicher
Issue Date:July 2002
pp. 97-104
While motion capture is commonplace in character animation, often the raw motion data itself is not used. Rather, it is first fit onto a skeleton and then edited to satisfy the particular demands of the animation. This process can introduce artifacts into ...
     
HijackGL: reconstructing from streams for stylized rendering
Found in: Proceedings of the second international symposium on Non-photorealistic animation and rendering (NPAR '02)
By Alex Mohr, Michael Gleicher
Issue Date:June 2002
pp. 13-ff
This work shows that intercepting a low-level graphics library command stream and reconstructing a declarative representation is practical and useful, especially for exploring new rendering styles. We show not only how the basic mechanics of intercepting a...
     
Simplicial families of drawings
Found in: Proceedings of the 14th annual ACM symposium on User interface software and technology (UIST '01)
By Lucas Kovar, Michael Gleicher
Issue Date:November 2001
pp. 163-172
In this paper we present a method for helping artists make artwork more accessible to casual users. We focus on the specific case of drawings, showing how a small number of drawings can be transformed into a richer object containing an entire family of sim...
     
Motion path editing
Found in: Proceedings of the 2001 symposium on Interactive 3D graphics (SI3D '01)
By Michael Gleicher
Issue Date:March 2001
pp. 195-202
we present an exact and interactive collision detection system, I-COLLIDE, for large-scale environments. Such environments are characterized by the number of objects undergoing rigid motion and the complexity of the models. The algorithm does not assume th...
     
Non-invasive, interactive, stylized rendering
Found in: Proceedings of the 2001 symposium on Interactive 3D graphics (SI3D '01)
By Alex Mohr, Michael Gleicher
Issue Date:March 2001
pp. 175-178
we present an exact and interactive collision detection system, I-COLLIDE, for large-scale environments. Such environments are characterized by the number of objects undergoing rigid motion and the complexity of the models. The algorithm does not assume th...
     
Towards virtual videography (poster session)
Found in: Proceedings of the eighth ACM international conference on Multimedia (MULTIMEDIA '00)
By James Masanz, Michael Gleicher
Issue Date:October 2000
pp. 375-378
Videographers have developed an art of conveying events in video. Through choices made in cinematography, editing, and post-processing, effective video presentations can be created from events recorded with little or no intrusion. In this paper, we explore...
     
Spacetime swing
Found in: ACM SIGGRAPH 98 Electronic art and animation catalog (SIGGRAPH '98)
By Michael Gleicher
Issue Date:July 1998
pp. 172
This paper describes a physically-based rendering system tailored to the demands of lighting design and architecture. The simulation uses a light-backwards ray-tracing method with extensions to efficiently solve the rendering equation under most conditions...
     
Retargetting motion to new characters
Found in: Proceedings of the 25th annual conference on Computer graphics and interactive techniques (SIGGRAPH '98)
By Michael Gleicher
Issue Date:July 1998
pp. 33-42
This paper describes a physically-based rendering system tailored to the demands of lighting design and architecture. The simulation uses a light-backwards ray-tracing method with extensions to efficiently solve the rendering equation under most conditions...
     
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