Shape Changing Interfaces
CPSC 6140: Human Computer Interaction
Group 7:
Bhargav Golla
Mit Dave
Nitya Sai Ginjupalli
INTRoduction
- Flexible Displays and shape changing interfaces
- Wide usage in Ubiquitous computing
- Aim: Classify design purposes in shape changing interfaces
- Reviewed CHI 2012 and CHI 2013 papers
CLASSIFICATION OF BENDING GESTURES
Warren et al.
- Many independent degrees of freedom
- Which ones to choose? How to classify?
- Location, Direction, Size and angle
- Kinetic parameters: Physical specification
of transformation
CLASSIFICATION OF BENDING GESTURES
Warren et al.
Findings?
- Bending the device down is more difficult
Frequent functions mapped to top corner - Not easy to distinguish medium bends
Use two mode classification: Small and Large - Users have different ways of performing gestures
Adaptable classification system
SHape Memory alloys
-
Metals that change shape in response to heat
- Light in weight and flexible
-
Can be used as creative crafting
materials by combining them with paper
SHAPE Memory Alloys
Folding flap
Parallelogram
SHAPE MEMORY ALLOYS
Curling flap
Clam shell
Shape Memory Alloys
Electronic Origami Crane
SHAPE MEMORY ALLOYS
Ten different forms of shape resolution defined:
area, granularity, porosity, amplitude, zero-crossing, closure, stretchability, strength, speed
MORPHEES - NEXT gen mobile
- Self-actuated flexible mobile device
- Ability to transform itself to shapes
- Examples: Mimic a console, Gun trigger
- Limitations: Building high shape
resolution touch
MOREPHONE
- Communicate notifications using Shape
deformations - Shape Memory alloys to achieve actuation
- Map type of notification (1/2/3 corner bend)
to urgency
OPTICAL FIBER CLOTH
Hashimoto et al.
- Light, another form of input.
- Light cloth: A fabric made of optical fibers
A pen to control color of the cloth. - Not only furniture design, but also
contextual highlighting, invisible lasers - Missing aspect: No experimental observation
DEFORMABLE USER INTERFACES
Limited methods available for input/ output
interaction
-
Deformation based gesture recognition
-
Variable stiffness for haptic feedback
Mimic Tile
DEFORMABLE USER INTERFACES
Components:
- SMA Wires
- Silicon rubber sheet
- Heat resistant pulleys
- Polycarbonate plate
and acrylic plate
Usage? Drawbacks?
DYNAMIC PHYSICAL AFFORDANCES
inFORM System
Earlier work
DYNAMIC Physical affordances
Three basic functionalities:
- Provide dynamic physical affordance
- Restrict through dynamic constraints
- Manipulate passive objects
DYNAMIC Physical affordances
Usage of inFORM system:
- Contour mapping
- Computer Aided design
- 3D graphs
- For visually impaired
Limitations:
- Cost
- Space
- Pin sizes
- Overlapping
CONCLUSION
- Papers analyzed using Rasmussen et al.'s classification
- Drew comparison between different papers.
- Purposes addressed by each shape changing interface
- No systematic approach so far
- Key objective for future research:
Generate more data on user experience with shape
changing interfaces
THANK YOU
Shape Changing Interfaces
By bhargavgolla
