symbolic_input - 3D User Interface Symbolic 3D Input...

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Unformatted text preview: 3D User Interface Symbolic 3D Input Techniques Lecture #11: Symbolic Input Spring 2008 Joseph J. LaViola Jr. Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Universal 3D Interaction Tasks Navigation Navigation Travel – motor component Travel Wayfinding – cognitive component Wayfinding Selection Selection Manipulation Manipulation System control System Symbolic input Symbolic Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 1 Symbolic Input Entering text, numbers, math, symbols, Entering etc… Difficult in 3DUIs Difficult rarely present in immersive systems rarely don’t always have a keyboard don Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Usage Scenarios Design automation Design Filename entry Filename Labeling, Annotation, and Markup Labeling, Precise object manipulation Precise Setting parameters Setting Communication Communication Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 2 Features of Symbolic Input in 3DUIs Users often standing Users Users may physically move around Users No surface to place keyboard No Difficult to see in low-light conditions Difficult Different for different hardware Different configurations Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Symbolic Input Tasks Alphanumeric input Alphanumeric Editing alphanumeric symbols Editing Markup input Markup Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 3 Symbolic Input Techniques Keyboard-based techniques Keyboard Pen-based techniques Pen Gesture-based techniques Gesture Speech-based techniques Speech Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Keyboards – Miniature Keyboards Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 4 Keyboards – Low Key Count Keyboards Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Keyboards – Chord Keyboards Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 5 Keyboards – Pinch Keyboard Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Keyboards – Soft Keyboards Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 6 Pen-Based Keyboards Pen-stroke gesture recognition Pen Cirrin soft keyboard (Mankoff and Abowd 1998) Spring 2008 Dasher (Ward et al., 2002) CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Pen-Based Keyboards – Shape Writer Zhai and Kristensson 2002 Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 7 Pen-Based Keyboards – Digital Ink Poupyrev et al., 1998 Poupyrev Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Gesture-Based Techniques Sign language Sign Numeric gestures Numeric Instantaneous gestures Instantaneous Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 8 Speech-Based Techniques Single character speech recognition Single Whole word speech recognition Whole Unrecognized speech input Unrecognized Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. User Performance Bowman et al. 2002 Bowman Speech 3 Pen & tablet Pinch Keyboard 70 Chord keyboard Average CPM 60 50 40 30 20 10 Pinch Keyboard Pen & tablet Speech Chord keyboard 2.5 Relative comfort rating 80 2 1.5 1 0.5 0 Arm Strain 0 Trials 1-12 Trials 13-24 Trials 25-36 Trials 37-48 Trials 49-60 Trials 61-72 Spring 2008 Hand Strain Neck Strain Dizziness -0.5 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 9 Next Class 3DUI Design 3DUI Readings Readings 3DUI Book – Chapter 9 3DUI Spring 2008 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 10 ...
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