L i g h t P a i n t e r 3D
Presenters: Jon-Paul Berexa, Sam Wyatt
Rafee Memon, Will Xia
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Allow users to draw freehand, 3D light paintings in an easy, intuitive way.
• Traditional light painting methods are challenging and constricted to certain lighting.
• Light painting could have more practical applications with additional accuracy.
• Our solution will be cost-effective, portable, and versatile.
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Traditional Light Painting
Kinect and Wii
3D Freehand Drawing Pen
• Challenging
• Can’t undo mistakes
• Requires decent camera and lens setup
• $200+
• High start up cost
• Digitally created light
• Lesser degree of accuracy
• $~250
• Unnatural to use
• Constrained to small area
• Unreleased http://blog.makezine.com/2010/08/17/3d-freehand-drawer/
Rhonda 3D Drawing Tool http://ndesign-studio.com/blog/rhonda-3d-drawing-tool
• Compact, Portable
• Tablet-Based
• Challenging to learn
• Unreleased
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• Complete Realism: Uses actual light to create image
• 3D Position: Uses two cameras for 3D image
• Imperceptible Delay: Must be low-latency
• Editable: Drawing must be modifiable
• Intuitive: Must feel like a natural action
• (Optional) Rotatable Drawing
• (Optional) Multiple Pen Coordination
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• LightPen
– Arduino Mini
– XBee Antenna + Breakout Board
– Various Sliders, Buttons, LEDs
• 2 cameras
– Both HD webcams
• XBee computer adapter
• Camera/Receiver housing
• User must provide a computer
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Motion Tracking Inaccuracy • Using custom built algorithm tailored to track the LightPen
LightPen Battery Failure
Signal Loss
Display Lags Behind Input
• Battery is relatively easy to change
• Drawing can be stopped and continued later
• Connection indicator light located on
Camera Housing
• Using Xbee which is relatively reliable
• Resolution can be scaled based on available computing power
• Working towards an imperceptible delay
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