Daniel Stone Prof. Bruce H. Thomas Task Complexity in Designing Physical Interfaces in Spatial Augmented Reality Daniel Stone Prof. Bruce H. Thomas

Overview Problem Addressed Aim and Hypothesis Background Research Spatial Augmented Reality Design in SAR Constraint Based Design Human Computer Interaction Modelling and Prototyping SAR Module Design Desktop Module Design User Study Taking the Research Further Acknowledgements Summary Questions

Problem Addressed Design of Physical User Interfaces Cost of Design Automotive Aircraft TV Remote Cost of Design Physical Mock-ups/Models Material Costs Time of Design Iterations

Aim and Hypothesis Make Physical UI Layout Spatially Intuitive Test the effectiveness of SAR on Design Challenges Provide Commercial Savings Hypothesis Users will complete the design task faster using SAR over Desktop

Spatial Augmented Reality What is SAR How SAR Works Immersion and Perception Commercial Applications Appliance Design Automotive Spot Welding CAVE Systems

Design in SAR Why Design in SAR Existing Applications Color Reproduction Architectural Design SoftAR Product Appearance Evaluation Adaptive Colour Marker

Constraint Based Design Constraint vs Freeform Constraints Used Position (X,Y) Quantity (Rows and Columns) Padding Mapping Constraints to Input Controller Advantages of Constraint Based Approach

Human Computer Interaction Investigated Design of UI Tools for Software Domain Different Input Technologies 6DOF Pointer Based Spatial User Interfaces Large Scale Modelling Tangible CAD Design in SAR SAR Does it Better

Modelling and Prototyping Improving Prototyping through SAR Easily Model Real World Space Architectural Designs Automotive Assembly Floor Interactive Modelling Quimo Interaction

SAR Module Design OpenGL Drawing to Plane Projection Plane Mapped to Top Physical Surface Constraint Based Drawing Only Manipulate Six Parameters Arduino Controller Input Through Six Potentiometers

Desktop Module Design Using Unity Game Engine Uses Sprite Textures Input via Sliders Manipulation through Mouse Each Slider Maps to a Potentiometer

User Study Within Participants/Repeated Measures Design IV: SAR vs Desktop DV: Time Taken Accuracy Preference 16 Participants 5 Trials on Each Platform

Taking the Research Further Custom Hardware for Input Device More Complex Design Task Relationship between Platform Preference and Task Complexity Larger Sample Critique from Industry Designers

Acknowledgements Principal Supervisor SAR Programming Assistance Prof Bruce H. Thomas SAR Programming Assistance Andrew Irlitti James Baumeister Tim Simon Michael Marner James Walsh Arduino Setup David Webb Ethics and User Study Queries James Baumeister And all of the Wearable Computing Lab!

Summary SAR makes for intuitive spatial design Rapid Prototyping using SAR can reduce costs and time to market SAR can be better suited to design for some tasks over Desktop

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