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Item I Don't Believe My Eyes! Geometric Sketch Recognition for a Computer Art Tutorial(The Eurographics Association, 2012) Cummmings, Danielle; Vides, Francisco; Hammond, Tracy; Karan Singh and Levent Burak KaraDrawing is a common form of communication and a means of artistic expression. Many of us believe that the ability to draw accurate representations of objects is a skill that either comes naturally or is the result of hours of study or practice or both. As a result many people become intimidated when confronted with the task of drawing. Many books and websites have been developed to teach people step-by-step skills to draw various objects, but they lack the live feedback of a human examiner. We designed EyeSeeYou, a sketch recognition system that teaches users to draw eyes using a simple drawing technique. The system automatically evaluates the freehand drawn sketch of an eye at various stages during creation. We conducted frequent evaluations of the system in order to take an iterative development approach based on user feedback. Our system balances the flexibility of free-hand drawing with step-by-step instructions and realtime assessment. It also provides rigorous feedback to create a constructive learning environment to aid the user in improving her drawing. This paper describes the implementation details of the sketch recognition system. A similar implementation method could be used to provide sketching tutorials for a wide number of images.Item RedDog: A Smart Sketch Interface for Autonomous Aerial Systems(The Eurographics Association, 2012) Cummmings, Danielle; Fymat, Stephane; Hammond, Tracy; Karan Singh and Levent Burak KaraIn order to decrease the number of casualties and limit the number of potentially dangerous situations that Soldiers encounter, the US military is exploring the use of autonomous Unmanned Aircraft Systems (UAS) to fulfill air support requests (ASR) from the field. The interface for such a system must provide interaction in modes that facilitate the completion of the support request in various scenarios, and it must be usable by operators of all skill levels, without requiring extensive training or considerable expertise. Sketches are a simple and natural way to exchange graphical information and ideas. In this paper we present the development of an interface that that allows the user to plan an ASR using sketch and other inputs while conforming to the user's mental model of natural interaction.