This document discusses a mobile projector interaction system that allows users to project digital interfaces onto tangible objects and surfaces. It uses the ARToolKitPlus and OpenCV libraries to enable projection onto physical surfaces. The document also describes collecting data through observations, video recordings, and group interviews to analyze how concealed movement representations as an engaging game element can span a possibility space across multiple groups within a physical space while maintaining a sense of realism.

1. Hide out
Mobile Projector Interaction
with Tangible Objects and Surfaces
http://www.disneyresearch.com/project/hideout/
Disney Research
Microsoft Research
Computational Desig1n Lab

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8. Software
• ARToolKitPlus library
• OpenCV library
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9. i-dentity
Innominate Movement Representation
as Engaging Game Element
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13. Data gathering and analysis
• Observations
• Video
• semi-structured group interviews
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18. span a possibility space
• Concealed
• movement representation
• multiple groups
• Space
• realism
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