SBM05: Sketch Based Interfaces and Modeling 2005
https://diglib.eg.org:443/handle/10.2312/421
ISBN 3-905673-30-42024-03-29T12:44:52ZA Sketch-Based Gesture Interface for Rough 3D Stick Figure Animation
https://diglib.eg.org:443/handle/10.2312/SBM.SBM05.175-183
A Sketch-Based Gesture Interface for Rough 3D Stick Figure Animation
Mao, C.; Qin, S. F.; Wright, D. K.
Joaquim Armando Pires Jorge and Takeo Igarashi
This paper introduces a novel gesture interface for sketching out rough 3D stick figure animation. This interface can allow users to draw stick figures with the system automatic assistance in figure proportion control. Given a 2D hand-drawn stick figure under a parallel view, there is a challenge to reconstruct a unique 3D pose from a set of candidates. Our system utilizes figure perspective rendering, and introduces the concept of thickness contrast as a sketch gesture combined with some other constraints/assumptions for pose recovery. The resulting pose can be further corrected, based on physical constraints of human body. Once obtaining a series of 3D stick figure poses, user can easily sketch out motion paths and timing, and add their preferable sound/background. The resulting 3D animation can be automatically synthesized in VRML. This system has been tested on a variety of input devices: electric whiteboard, tablet PC, as well as a standard mouse.
2005-01-01T00:00:00ZA Sketching Interface for Modeling and Editing Hairstyles
https://diglib.eg.org:443/handle/10.2312/SBM.SBM05.185-194
A Sketching Interface for Modeling and Editing Hairstyles
Malik, Shahzad
Joaquim Armando Pires Jorge and Takeo Igarashi
This paper presents interaction techniques and algorithms for modeling and editing virtual 3D hairstyles with a user-friendly sketching interface. Using a pressure-sensitive tablet, a user makes freeform strokes to mimic a number of real-world hairstyling operations such as cutting, combing, curling, frizzing, and twisting. Additionally, the user can perform other localized operations such as implanting new hair strands onto a 3D surface (usually the scalp), lengthening the strands, and adjusting hair density. Virtual hairpins can also be placed onto strands to temporarily fix the position of hair which allows for the creation of more advanced styles such as ponytails. The system runs at interactive rates, thereby providing instant visual feedback to users as they work. Unlike existing hair modeling systems that require hours of complicated control point manipulations and parameter tweaking, our interface allows for creating expressive hairstyles quickly and easily, even for first-time users.
2005-01-01T00:00:00ZRetrieving Web Page Layouts using Sketches to Support Example-based Web Design
https://diglib.eg.org:443/handle/10.2312/SBM.SBM05.155-164
Retrieving Web Page Layouts using Sketches to Support Example-based Web Design
Hashimoto, Yasunari; Igarashi, Takeo
Joaquim Armando Pires Jorge and Takeo Igarashi
It is very difficult for inexperienced users to design good-looking web page layouts. Even with WYSIWYG editors, it is still difficult to obtain desired results because one must combine complicated HTML specific structures. Another reason is that it is inherently difficult for those who have limited artistic talents to design good layout from scratch. We address these problems by providing an environment where one can design web page layouts using existing well-designed web pages on the net as examples. The system basically works as a search system. The user sketches a simple layout as a query and the system returns web pages that have similar appearance. By referring to the example pages, the user can learn the basic principles of HTML design, obtain inspiration for better design, and also can directly use the professionally designed layouts by replacing the contents. This paper describes the user interface and the implementation of the system in detail. It also reports the result of an empirical user study. The users found the system very useful and the layouts designed using the system was scored highly by evaluators.
2005-01-01T00:00:00ZDesigner s Choice: Constructing a Study to Compare Display Interfaces for Early Design Sketching
https://diglib.eg.org:443/handle/10.2312/SBM.SBM05.145-154
Designer s Choice: Constructing a Study to Compare Display Interfaces for Early Design Sketching
Hsia, A.; Samoylov, A.; McGovern, A.; Bailey, B.
Joaquim Armando Pires Jorge and Takeo Igarashi
Digital design tools provide several advantages over pen and paper, including a virtually unlimited workspace and easy design storage, transportation, duplication and access. However, the benefits of new tools are limited by the physical interfaces that are used to interact with them. In this paper, we describe and conduct an exploratory study designed to illuminate strengths and weaknesses of three digital sketching interfaces: Separated Overview+Detail (two standard desktop screens), Separated Focus+Context (one standard desktop screen with one large screen), and Single Large-Screen. The experimental tasks focus on the domain of early sketching and prototyping. Users performed one of three tasks on all three displays. Our results suggest that the Focus+Context system elicits higher user satisfaction, and possibly incurs fewer costs on perception resources and performance. Given the exploratory nature of this study, we close with suggestions for further research directions.
2005-01-01T00:00:00Z