Advances in pen-based computer hardware have enabled digital sketch-based interfaces to emerge as a powerful way to combine the quick and intuitive feel of paper with the power of computation. However, fully realizing the potential of these sketch-based systems requires effective user interface design and underlying algorithms to analyze the input. The goal of this workshop is to explore models, algorithms and technologies needed to enable effective sketch-based interfaces. It will investigate novel methods for classification and recognition of hand-drawn shapes, and the ways of using these techniques for creating or editing digital models, from text, mathematics, and 2D diagrams to 3D shapes. Likewise, the workshop will explore the application of sketch-based interfaces to domains as diverse as 3D computer graphics and animation, CAD, diagram editing, note taking, etc. Finally, the workshop will welcome empirical user studies aimed at clarifying the nature of sketch-based interfaces and comparing them to other interaction techniques.

Created in 2004, SBIM provides a unique venue for researchers, students and practitioners interested in sketch-based techniques to interact with one another, share lessons learned, show new results and discuss open issues. This year, the workshop will be held in New Orleans, Louisiana and will be co-located with the 36th International Conference and Exhibition on Computer Graphics and Interactive Techniques (ACM SIGGRAPH 2009 ). The two-day workshop will include paper presentations (single track), coffee breaks, a social event, and a keynote talk by Dr. Mark Gross of Carnegie Mellon University. All are welcome to attend the workshop; submission of a paper is not required for attendance. The proceedings will be published in the EG Symposia series and made available online through the Eurographics and ACM Digital Libraries.

Authors are invited to submit original papers on topics in pen-based 2D and 3D modeling, sketch recognition, and pen-based interface design, including, but not limited to:

* Multimodal interfaces for sketching
* Novel sketch input devices
* Novel pen-based interaction techniques
* Low level ink processing and pen stroke segmentation
* Sketch parsing, classification and recognition
* Sketch-based interfaces for CAD systems
* Sketch-based modeling and editing of 3D shapes
* Sketch-based control of animations
* Sketch-based interfaces for other applications (surface editing, diagram creation, mathematical annotations, games, etc.)
* Rendering techniques for sketch-based systems (NPR)
* Sketches for Medical and Volume data editing
* Sketch-based retrieval of multimedia information
* Usability studies of sketch-based systems
* Studies of the impact of sketching on creativity and design
* Multi-touch interfaces and applications

Important Dates

Paper Deadline: April 15, 2009

Notification of Decisions: May 20, 2009

Final Papers Due: June 1, 2009

Conference Dates: August 1-2, 2009