Wolfgang Stuerzlinger
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Publications by Wolfgang Stuerzlinger (bibliography)
» 2008 «
Dehmeshki, Hoda and Stuerzlinger, Wolfgang (2008): Intelligent object group selection. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 3111-3116. Available online
“Current object group selection techniques such as lasso or rectangle selection can be time consuming and error prone. This is apparent when selecting distant objects on a large display or objects arranged along curvilinear paths in a dense area. We present a novel group selection technique based on the Gestalt principles of proximity and good continuity. The results of a user study show that our new technique outperforms lasso and rectangle selection for object groups in(curvi)linear arrangements or clusters, i.e. groups with an implicit structure.”
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Teather, Robert J. and Stuerzlinger, Wolfgang (2008): Exaggerated head motions for game viewpoint control. In: Proceedings of the 2008 Conference on Future Play 2008. pp. 240-243. Available online
“In this paper, we present an evaluation of exaggerated head-coupled camera motions in a game-like 3D object movement. Three exaggeration levels were compared to determine if the exaggeration was more beneficial than a realistic 1:1 mapping. The results suggest that there is some user preference for this type of exaggeration; however, no significant differences by the experimental conditions were found, other than a learning effect.”
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Pavlovych, Andriy and Stuerzlinger, Wolfgang (2008): Effect of screen configuration and interaction devices in shared display groupware. In: Proceedings of the 2008 ACM International Workshop on Human-Centered Multimedia 2008. pp. 49-56. Available online
“Interactive tabletop and wall surfaces support collaboration and interactivity in novel ways. Apart from keyboards and mice, such systems can also incorporate other input devices, namely laser pointers, marker pens with screen location sensors, or touch-sensitive surfaces. Similarly, instead of a vertically positioned desktop monitor, collaborative setups typically use much larger displays, which are oriented either vertically (wall) or horizontally (tabletop), or combine both kinds of surfaces. In this paper we describe an empirical study that investigates how technical system constraints can affect group performance in high pace collaborative tasks. For this, we compare various input and output modalities in a system that consists of several interactive tabletop and wall surface(s). We observed that the performance of a group of people scaled almost linearly with the number of participants on an almost perfectly parallel task. We also found that”
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» 2007 «
Teather, Robert J. and Stuerzlinger, Wolfgang (2007): Guidelines for 3D positioning techniques. In: Proceedings of the 2007 Conference on Future Play 2007. pp. 61-68. Available online
“In this paper, we present a set of guidelines for designing 3D positioning techniques. These guidelines are intended for developers of object interaction schemes in 3D games, modeling packages, computer aided design systems, and virtual environments. The guidelines promote intuitive object movement techniques in these types of environments. We then present a study comparing 3D positioning techniques based on these guidelines with 2D and 3D/6D devices across VR display technologies. Display technologies such as stereoscopic graphics and head-coupled perspective provide additional depth cues and could affect how a user perceives and thus interacts with a 3D scene -- regardless of the input device/technique used. Thus they are examined as well. The results suggest that 2D devices using "smart" movement algorithms can outperform 3D devices.”
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» 2006 «
Oh, Ji-Young, Stuerzlinger, Wolfgang and Danahy, John (2006): SESAME: towards better 3D conceptual design systems. In: Proceedings of DIS06: Designing Interactive Systems: Processes, Practices, Methods, & Techniques 2006. pp. 80-89. Available online
“Conceptual design dominates the early stages of most creative design processes. During these stages, the designer makes important decisions about the parameters of a model that are aimed at satisfying a set of design criteria. To do this, the designer produces many sketches of various possible solutions. Meanwhile, computer-aided design (CAD) systems are becoming the dominant visual medium used in design practice. However, these tools evolved as documentation production tools and do not support conceptual thinking. This paper presents a list of guidelines for computer support for conceptual design activities on 3D scenes and presents SESAME (Sketch, Extrude, Sculpt, and Manipulate Easily), a system based on these guidelines. Finally, we present a user study comparing SESAME with a conventional CAD package to demonstrate the effectiveness of SESAME.”
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Stuerzlinger, Wolfgang, Chapuis, Olivier, Phillips, Dusty and Roussel, Nicolas (2006): User interface facades: towards fully adaptable user interfaces. In: Proceedings of the ACM Symposium on User Interface Software and Technology 2006. pp. 309-318. Available online
“User interfaces are becoming more and more complex. Adaptable and adaptive interfaces have been proposed to address this issue and previous studies have shown that users prefer interfaces that they can adapt to self-adjusting ones. However, most existing systems provide users with little support for adapting their interfaces. Interface customization techniques are still very primitive and usually constricted to particular applications. In this paper, we present User Interface Facades, a system that provides users with simple ways to adapt, reconfigure, and re-combine existing graphical interfaces, through the use of direct manipulation techniques. The paper describes the user's view of the system, provides some technical details, and presents several examples to illustrate its potential.”
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» 2005 «
Oh, Ji-Young and Stuerzlinger, Wolfgang (2005): Moving objects with 2D input devices in CAD systems and Desktop Virtual Environments. In: Graphics Interface 2005 May 9-11, 2005, Victoria, British Columbia, Canada. pp. 195-202. Available online
“Part assembly and scene layout are basic tasks in 3D design in Desktop Virtual Environment (DVE) systems as well as Computer Aided Design (CAD) systems. 2D input devices such as a mouse or a stylus are still the most common input devices for such systems. With such devices, a notably difficult problem is to provide an efficient and predictable object motion in 3D based on their 2D motion. This paper presents a new technique to move objects in CAD/DVE using 2D input devices. The technique presented in this paper utilizes the fact that people easily recognize the depth-order of shapes based on occlusions. In the presented technique, the object position follows the mouse cursor position, while the object slides on various surfaces in the scene. In contrast to existing techniques, the movement surface and the relative object position is determined using the whole area of overlap of the moving object with the static scene. The resulting object movement is visually smooth and predictable, while avoiding undesirable collisions. The proposed technique makes use of the framebuffer for efficiency and runs in real-time. Finally, the evaluation of the new technique with a user study shows that it compares very favorably to conventional techniques.”
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Kulikov, Sergey, MacKenzie, I. Scott and Stuerzlinger, Wolfgang (2005): Measuring the effective parameters of steering motions. In: Proceedings of ACM CHI 2005 Conference on Human Factors in Computing Systems 2005. pp. 1569-1572. Available online
“The steering law model describes pointing device motion through constrained paths. Previous uses of the model are deficient because they are built using only error-free responses, ignoring altogether the path of the cursor. We correct this by proposing and validating a technique to include spatial variability, including errors. The technique is a variant of the well-known "effective target width" used in Fitts' law models. An experiment designed to test our technique demonstrates the improvement: Correlations are consistently higher when spatial variability is included in building the model. Suggestions to aid further development of the steering law model are included.”
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» 2004 «
Pavlovych, Andriy and Stuerzlinger, Wolfgang (2004): Model for non-expert text entry speed on 12-button phone keypads. In: Dykstra-Erickson, Elizabeth and Tscheligi, Manfred (eds.) Proceedings of ACM CHI 2004 Conference on Human Factors in Computing Systems April 24-29, 2004, Vienna, Austria. pp. 351-358. Available online
“In this paper we present a new model for predicting text entry speed on a 12-button mobile phone keypad. The proposed model can predict the performance of novice users. Like other models for text entry, the proposed model includes a movement component based on Fitts' law and a linguistic component based on letter digraph probabilities. It also adds cognitive delay times before key presses and takes into account the fact that Fitts' law cannot model multiple presses of the same key accurately. Finally, we compare the prediction of our model to previously published experimental results, demonstrate that it fits observed results for novices very well, and list some observations about learning.”
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» 2003 «
Pavlovych, Andriy and Stuerzlinger, Wolfgang (2003): Less-Tap: A Fast and Easy-to-Learn Text Input Technique for Phones. In: Graphics Interface 2003 June 11-13, 2003, Halifax, Nova Scotia, Canada. pp. 97-104.
Oh, Ji-Young and Stuerzlinger, Wolfgang (2003): Intelligent Manipulation Techniques for Conceptual 3D Design. In: Proceedings of IFIP INTERACT03: Human-Computer Interaction 2003, Zurich, Switzerland. p. 319.
» 2002 «
Oh, Ji-Young and Stuerzlinger, Wolfgang (2002): Laser Pointers as Collaborative Pointing Devices. In: Graphics Interface 2002 May 27-29, 2002, Calgary, Alberta, Canada. pp. 141-150.
Mueller, Stefan and Stuerzlinger, Wolfgang (eds.) 8th Eurographics Workshop on Virtual Environments May 30-31, 2002, Barcelona, Spain.
» 2001 «
Smith, Graham, Stuerzlinger, Wolfgang and Salzman, Tim (2001): 3D Scene Manipulation with 2D Devices and Constraints. In: Graphics Interface 2001 June 7-9, 2001, Ottawa, Ontario, Canada. pp. 135-142.
» 1999 «
Stuerzlinger, Wolfgang (1999): Imaging all Visible Surfaces. In: Graphics Interface 99 June 2-4, 1999, Kingston, Ontario, Canada. pp. 115-122. Available online
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Mar 17th, 2010
Changes to this page (author)
11 Feb 2010: Enabled abstracts to be shown on Wolfgang Stuerzlinger's author page.23 Jul 2009: Author was edited 20 Jul 2009: Author was added to the bibliography (approved by an editor)
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28 Apr 2003: Added the author to the bibliography
