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L i g h t P a i n t e r 3D. Presenters: Jon-Paul Berexa, Sam Wyatt Rafee Memon , Will Xia. Light Painting. Project Concept Allow users to draw freehand, 3D light paintings in an easy, intuitive way. Motivation - PowerPoint PPT Presentation
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LightPainter3DPresenters: Jon-Paul Berexa, Sam Wyatt
Rafee Memon, Will Xia
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Light Painting
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Project ConceptAllow users to draw freehand, 3D light paintings in an easy, intuitive way.Motivation• 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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Competitive AnalysisTraditional Light Painting • Challenging
• Can’t undo mistakes• Requires decent camera and lens setup• $200+
Kinect and Wii • High start up cost• Digitally created light• Lesser degree of accuracy• $~250
3D Freehand Drawing Pen
http://blog.makezine.com/2010/08/17/3d-freehand-drawer/
• Unnatural to use• Constrained to small area• Unreleased
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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Requirements
• 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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Technical Specifications
• 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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Architecture
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Risks and MitigationMotion Tracking Inaccuracy • Using custom built algorithm tailored to
track the LightPen
LightPen Battery Failure • Battery is relatively easy to change• Drawing can be stopped and continued
later
Signal Loss • Connection indicator light located on Camera Housing
• Using Xbee which is relatively reliable
Display Lags Behind Input • Resolution can be scaled based on available computing power
• Working towards an imperceptible delay
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Questions?
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